MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef5182e386c1b5e967b1a0453f1438fdd0b0a301a44144ea579da7b6e6b40e05. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Backdoor.TeamViewer


Vendor detections: 17


Intelligence 17 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef5182e386c1b5e967b1a0453f1438fdd0b0a301a44144ea579da7b6e6b40e05
SHA3-384 hash: 060f4c5b7d04ebb3a99283e3d680c15054b2f7fee50c12000178058fa5e383ecbad7e95b1822bb12af8651ef36e4f635
SHA1 hash: 7a858fd003632d1369cd5ad0b9540d9263e644a9
MD5 hash: a3c11e627b5f362ae70343be367590de
humanhash: shade-texas-michigan-mango
File name:file
Download: download sample
Signature Backdoor.TeamViewer
Create hunting rule
File size:1'842'688 bytes
First seen:2023-10-22 16:17:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 646167cce332c1c252cdcb1839e0cf48 (8'473 x RedLineStealer, 4'851 x Amadey, 290 x Smoke Loader)
ssdeep 49152:1qyyS5eqlIz8PH38ed53gNMN9goXJA70XIqLj:nyAnlrPV3COPXfXI
TLSH T1BA8523A1E2D84433D8A04774A8F6179B5F313CA198E5963F73836D990DF22A4793839F
TrID 70.4% (.CPL) Windows Control Panel Item (generic) (197083/11/60)
11.1% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
5.9% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
3.7% (.EXE) Win64 Executable (generic) (10523/12/4)
2.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon f8f0f4c8c8c8d8f0 (8'803 x RedLineStealer, 5'078 x Amadey, 288 x Smoke Loader)
Reporter andretavare5
Tags:Backdoor.TeamViewer exe


Avatar
andretavare5
Sample downloaded from http://109.107.182.2/race/bus50.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
325
Origin country :
US US
Vendor Threat Intelligence
Malware family:
redline
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-10-22 16:20:11 UTC
Tags:
stealc stealer sinkhole redline trojan amadey botnet loader smoke
Link:
https://app.any.run/tasks/1298c9bf-b176-4c59-b5a5-fe72c5733b0b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.28840.BadO.UNOFFICIAL
Create hunting rule

Win.Downloader.Crifi-10009289-0
Create hunting rule

SecuriteInfo.com.Trojan.Agent.EAOQ.26295.2066.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %AppData% directory
Сreating synchronization primitives
Launching a service
Launching a process
Creating a file
Creating a window
Running batch commands
Launching cmd.exe command interpreter
Disabling the operating system update service
Blocking the Windows Defender launch
Unauthorized injection to a system process
Gathering data
Gathering data
Verdict:
Malicious
Labled as:
Downloader.Crifi
Link:
https://www.hybrid-analysis.com/sample/ef5182e386c1b5e967b1a0453f1438fdd0b0a301a44144ea579da7b6e6b40e05
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Amadey
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/44d3f5a5-b69b-4a3f-a712-fa561340e184
Result
Threat name:
Amadey, LummaC Stealer, Mystic Stealer,
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1330091
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Checks if the current machine is a virtual machine (disk enumeration)
Connects to many ports of the same IP (likely port scanning)
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to start reverse TCP shell (cmd.exe)
Creates a thread in another existing process (thread injection)
Disable Windows Defender notifications (registry)
Disable Windows Defender real time protection (registry)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies windows update settings
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Writes to foreign memory regions
Yara detected Amadey bot
Yara detected Amadeys stealer DLL
Yara detected LummaC Stealer
Yara detected Mystic Stealer
Yara detected RedLine Stealer
Yara detected SmokeLoader
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1330091 Sample: file.exe Startdate: 22/10/2023 Architecture: WINDOWS Score: 100 166 raw.githubusercontent.com 2->166 168 245.246.1.0.in-addr.arpa 2->168 170 11 other IPs or domains 2->170 194 Snort IDS alert for network traffic 2->194 196 Found malware configuration 2->196 198 Malicious sample detected (through community Yara rule) 2->198 200 20 other signatures 2->200 15 file.exe 1 4 2->15         started        18 cmd.exe 1 2->18         started        20 svchost.exe 2->20         started        23 3 other processes 2->23 signatures3 process4 dnsIp5 154 C:\Users\user\AppData\Local\...\UV7lX33.exe, PE32 15->154 dropped 156 C:\Users\user\AppData\Local\...\7Aa0zk06.exe, PE32 15->156 dropped 25 UV7lX33.exe 1 4 15->25         started        29 conhost.exe 18->29         started        31 regini.exe 1 18->31         started        172 127.0.0.1 unknown unknown 20->172 file6 process7 file8 142 C:\Users\user\AppData\Local\...\KU7Yu91.exe, PE32 25->142 dropped 144 C:\Users\user\AppData\Local\...\6fD9sN3.exe, PE32 25->144 dropped 228 Antivirus detection for dropped file 25->228 230 Multi AV Scanner detection for dropped file 25->230 232 Machine Learning detection for dropped file 25->232 33 KU7Yu91.exe 1 4 25->33         started        signatures9 process10 file11 122 C:\Users\user\AppData\Local\...\nH6YT57.exe, PE32 33->122 dropped 124 C:\Users\user\AppData\Local\...\5Mr4va1.exe, PE32 33->124 dropped 36 nH6YT57.exe 1 4 33->36         started        40 BO6bW7vk.exe 33->40         started        42 5Mr4va1.exe 33->42         started        process12 file13 126 C:\Users\user\AppData\Local\...\Tr0mM39.exe, PE32 36->126 dropped 128 C:\Users\user\AppData\Local\...\4rg120fP.exe, PE32 36->128 dropped 202 Machine Learning detection for dropped file 36->202 44 4rg120fP.exe 36->44         started        47 Tr0mM39.exe 1 4 36->47         started        50 conhost.exe 36->50         started        130 C:\Users\user\AppData\Local\...\cb9Yx2TZ.exe, PE32 40->130 dropped 132 C:\Users\user\AppData\Local\...\4Ns898BP.exe, PE32 40->132 dropped 204 Antivirus detection for dropped file 40->204 52 cb9Yx2TZ.exe 40->52         started        206 Writes to foreign memory regions 42->206 208 Allocates memory in foreign processes 42->208 210 Injects a PE file into a foreign processes 42->210 54 AppLaunch.exe 42->54         started        57 AppLaunch.exe 42->57         started        59 AppLaunch.exe 42->59         started        signatures14 process15 dnsIp16 234 Writes to foreign memory regions 44->234 236 Allocates memory in foreign processes 44->236 238 Injects a PE file into a foreign processes 44->238 61 AppLaunch.exe 44->61         started        158 C:\Users\user\AppData\Local\...\io5cl20.exe, PE32 47->158 dropped 160 C:\Users\user\AppData\Local\...\3uU07Ow.exe, PE32 47->160 dropped 64 io5cl20.exe 1 4 47->64         started        67 3uU07Ow.exe 47->67         started        162 C:\Users\user\AppData\Local\...\df7vQ2Zn.exe, PE32 52->162 dropped 164 C:\Users\user\AppData\Local\...\3of8dC55.exe, PE32 52->164 dropped 240 Antivirus detection for dropped file 52->240 242 Machine Learning detection for dropped file 52->242 69 df7vQ2Zn.exe 52->69         started        71 Conhost.exe 52->71         started        174 109.107.182.133 TELEPORT-TV-ASRU Russian Federation 54->174 73 Conhost.exe 54->73         started        file17 signatures18 process19 file20 244 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 61->244 246 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 61->246 248 Maps a DLL or memory area into another process 61->248 258 2 other signatures 61->258 75 explorer.exe 61->75 injected 114 C:\Users\user\AppData\Local\...\2cA7210.exe, PE32 64->114 dropped 116 C:\Users\user\AppData\Local\...\1xh33Zr2.exe, PE32+ 64->116 dropped 80 1xh33Zr2.exe 8 2 64->80         started        82 2cA7210.exe 12 64->82         started        250 Contains functionality to inject code into remote processes 67->250 252 Writes to foreign memory regions 67->252 254 Allocates memory in foreign processes 67->254 256 Injects a PE file into a foreign processes 67->256 84 AppLaunch.exe 1 1 67->84         started        118 C:\Users\user\AppData\Local\...\2aY135HF.exe, PE32 69->118 dropped 120 C:\Users\user\AppData\Local\...\1EG07Vf2.exe, PE32 69->120 dropped 86 1EG07Vf2.exe 69->86         started        signatures21 process22 dnsIp23 180 5.42.65.80 RU-KSTVKolomnaGroupofcompaniesGuarantee-tvRU Russian Federation 75->180 182 77.91.68.249 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 75->182 186 6 other IPs or domains 75->186 146 C:\Users\user\AppData\Local\Temp\F64A.exe, PE32 75->146 dropped 148 C:\Users\user\AppData\Local\Temp467.exe, PE32 75->148 dropped 150 C:\Users\user\AppData\Local\Temp\DAF0.exe, PE32 75->150 dropped 152 13 other files (12 malicious) 75->152 dropped 260 System process connects to network (likely due to code injection or exploit) 75->260 262 Benign windows process drops PE files 75->262 264 Hides that the sample has been downloaded from the Internet (zone.identifier) 75->264 88 8D81.exe 75->88         started        92 9852.exe 75->92         started        94 9BAE.exe 75->94         started        98 3 other processes 75->98 266 Contains functionality to bypass UAC (CMSTPLUA) 80->266 268 Contains functionality to start reverse TCP shell (cmd.exe) 80->268 270 Modifies windows update settings 80->270 282 2 other signatures 80->282 96 conhost.exe 80->96         started        184 5.42.92.88 RU-KSTVKolomnaGroupofcompaniesGuarantee-tvRU Russian Federation 82->184 272 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 82->272 274 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 82->274 276 Writes to foreign memory regions 86->276 278 Allocates memory in foreign processes 86->278 280 Injects a PE file into a foreign processes 86->280 file24 signatures25 process26 file27 138 C:\Users\user\AppData\Local\...\vh0vN4Hl.exe, PE32 88->138 dropped 140 C:\Users\user\AppData\Local\...\6Ng67mN.exe, PE32 88->140 dropped 216 Antivirus detection for dropped file 88->216 218 Multi AV Scanner detection for dropped file 88->218 220 Machine Learning detection for dropped file 88->220 100 vh0vN4Hl.exe 88->100         started        222 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 92->222 224 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 92->224 226 Tries to harvest and steal browser information (history, passwords, etc) 92->226 104 chrome.exe 98->104         started        107 chrome.exe 98->107         started        109 conhost.exe 98->109         started        signatures28 process29 dnsIp30 134 C:\Users\user\AppData\Local\...\BO6bW7vk.exe, PE32 100->134 dropped 136 C:\Users\user\AppData\Local\...\5Al58Kf.exe, PE32 100->136 dropped 212 Antivirus detection for dropped file 100->212 214 Machine Learning detection for dropped file 100->214 176 192.168.2.4 unknown unknown 104->176 178 239.255.255.250 unknown Reserved 104->178 111 chrome.exe 104->111         started        file31 signatures32 process33 dnsIp34 188 www.google.com 142.250.31.103 GOOGLEUS United States 111->188 190 clients.l.google.com 142.251.16.139 GOOGLEUS United States 111->190 192 11 other IPs or domains 111->192
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ef5182e386c1b5e967b1a0453f1438fdd0b0a301a44144ea579da7b6e6b40e05
Detection:
smokeloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ef5182e386c1b5e967b1a0453f1438fdd0b0a301a44144ea579da7b6e6b40e05/
Threat name:
Win32.Trojan.Smokeloader
Create hunting rule
Status:
Malicious
First seen:
2023-10-22 16:18:07 UTC
File Type:
PE (Exe)
Extracted files:
231
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=55iyfy4gyg26sz5rubct6fby7xilbiyburauj2sxtwt3nzvubycq._file
Verdict:
malicious
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:asyncrat family:dcrat family:glupteba family:redline family:smokeloader botnet:5141679758_99 botnet:default botnet:homed botnet:kinder botnet:up3 botnet:yt&team cloud backdoor brand:google dropper evasion infostealer loader persistence phishing rat trojan upx
Link:
https://tria.ge/reports/231022-trx78acd85/
Behaviour
Checks SCSI registry key(s)
Creates scheduled task(s)
Delays execution with timeout.exe
Enumerates system info in registry
Modifies Internet Explorer settings
Runs net.exe
Suspicious behavior: CmdExeWriteProcessMemorySpam
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Program crash
Enumerates physical storage devices
Launches sc.exe
Suspicious use of SetThreadContext
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
UPX packed file
Windows security modification
Downloads MZ/PE file
Modifies Windows Firewall
Possible attempt to disable PatchGuard
Stops running service(s)
Async RAT payload
Modifies boot configuration data using bcdedit
Amadey
AsyncRat
DcRat
Detected google phishing page
Glupteba
Glupteba payload
Modifies Windows Defender Real-time Protection settings
RedLine
RedLine payload
SmokeLoader
Malware Config
C2 Extraction:
http://77.91.68.29/fks/
109.107.182.133:19084
http://77.91.124.1/theme/index.php
https://pastebin.com/raw/8baCJyMF
185.216.70.238:37515
http://host-file-host6.com/
http://host-host-file8.com/
89.23.100.93:4449
Unpacked files
SH256 hash:
160ea596dea538000394fde4ba2d40fd2be5ab50037a77ba3000e927bff84ef1
MD5 hash:
22b50c95b39cbbdb00d5a4cd3d4886bd
SHA1 hash:
db8326c4fad0064ce3020226e8556e7cce8ce04e
Link:
https://www.unpac.me/results/979399d6-339a-411b-90be-a21c64a47113/
Parent samples :
24b66c0d6f26f5de09b4cb7a2496bf87ad0ed9d45e846870dee70941b565bc3c
d6069cb7acd4675b324603f2adc3e83fa7fa1829e73052a8d62a10f3d99a8200
SH256 hash:
98092cf6f0f17d01104f1a6034727430cf58023310714f28629633c2fb499b71
MD5 hash:
8db37d4fba41a71ef41b4e73ddc8f7ff
SHA1 hash:
17efc3c22b93d15f838bd2f4f2284f1c0e975bb6
Link:
https://www.unpac.me/results/979399d6-339a-411b-90be-a21c64a47113/
SH256 hash:
c3b10a04b1b9a3e0ed8e0f066716bf2a60a1714f0598eed6d29ef7fd93fb6a84
MD5 hash:
5a27b0b19abd6bda74c6645b44fafa46
SHA1 hash:
7e70d1c381f592234c826902a9454343d24af1b8
Detections:
Amadey
Create hunting rule
win_amadey_auto
Create hunting rule
Link:
https://www.unpac.me/results/979399d6-339a-411b-90be-a21c64a47113/
Parent samples :
4f4f82c15bbd29e48006479f58d2dd1f9abaeed7fd344df5b693d018a189780e
ef5182e386c1b5e967b1a0453f1438fdd0b0a301a44144ea579da7b6e6b40e05
8798da5a24295167486322d338e43efdfc5d5797f510ab3f2c499f30fc207349
SH256 hash:
ef5182e386c1b5e967b1a0453f1438fdd0b0a301a44144ea579da7b6e6b40e05
MD5 hash:
a3c11e627b5f362ae70343be367590de
SHA1 hash:
7a858fd003632d1369cd5ad0b9540d9263e644a9
Link:
https://www.unpac.me/results/979399d6-339a-411b-90be-a21c64a47113/
Malware family:
Amadey
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ef5182e386c1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ef5182e386c1b5e967b1a0453f1438fdd0b0a301a44144ea579da7b6e6b40e05

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:detect_Redline_Stealer
Create hunting rule
Author:Varp0s
Rule name:INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender
Create hunting rule
Author:ditekSHen
Description:Detects executables embedding registry key / value combination indicative of disabling Windows Defedner features
Rule name:mal_healer
Create hunting rule
Author:Nikos 'n0t' Totosis
Description:Payload disabling Windows AV
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by
  
URLhaus
https://urlhaus.abuse.ch/url/2722824/

Comments