MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf33824e8033ca527894888ed25ede1c9f17ab6c159f4beff4dbc8216801b618. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bf33824e8033ca527894888ed25ede1c9f17ab6c159f4beff4dbc8216801b618
SHA3-384 hash: 947e2bf77359d0482a7042931d1579464e64ce860c2bd20c0176cb68cb96ac4207aceecaaa9e87b6b4b6c2b7d67da2d5
SHA1 hash: 665225e0c0696413966209041e7248ed14873e62
MD5 hash: 49c16d2635480bf2ff8692d87a82f8fd
humanhash: johnny-one-idaho-alabama
File name:49c16d2635480bf2ff8692d87a82f8fd.exe
Download: download sample
Signature Backdoor.TeamViewer
Create hunting rule
File size:961'536 bytes
First seen:2023-10-21 10:35:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d7ba208feadbc5004adbbe24711c2488 (6 x RedLineStealer, 5 x Amadey, 1 x Backdoor.TeamViewer)
ssdeep 12288:tdxlbCCPOHiJMRxxcZ541BYlLckufEjWky8ot1QyuG/yuD3rC0rhfGJ:H9POHiJMRxxcZ54bGcNfEjXU1/
Threatray 2'194 similar samples on MalwareBazaar
TLSH T127157C2139C18136EDF310BB87ECBA3A82ADD4B0071916DB16D857EED7606D27F32592
TrID 32.2% (.EXE) Win64 Executable (generic) (10523/12/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4505/5/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter abuse_ch
Tags:Backdoor.TeamViewer exe


Avatar
abuse_ch
Backdoor.TeamViewer C2:
5.252.176.32:3306

Intelligence

File Origin
# of uploads :
1
# of downloads :
284
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
smoke
Create hunting rule
ID:
1
File name:
49c16d2635480bf2ff8692d87a82f8fd.exe
Verdict:
Malicious activity
Analysis date:
2023-10-21 10:37:53 UTC
Tags:
loader smoke
Link:
https://app.any.run/tasks/497e8e0d-b6fe-4681-8807-b267b3d12a03

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Trojan.Pwsx-10011340-0
Create hunting rule

Win.Trojan.Trojanx-10011459-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Launching a process
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control greyware lolbin smokeloader
Link:
https://www.filescan.io/uploads/6533a9a1e3768e7905c4a850/reports/6ed1930a-1e82-41b4-bb4d-eb97efd3db05/overview
Verdict:
Malicious
Labled as:
Midie.Generic
Link:
https://www.hybrid-analysis.com/sample/bf33824e8033ca527894888ed25ede1c9f17ab6c159f4beff4dbc8216801b618
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:
Conti
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b3ac2255-60ee-4b92-a6da-52817b71fc47
Result
Threat name:
Amadey, Glupteba, LummaC Stealer, Mystic
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1329642
Signature
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Allocates memory in foreign processes
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)
Contains functionality to inject code into remote processes
Creates a thread in another existing process (thread injection)
Creates an undocumented autostart registry key
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Found Tor onion address
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
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
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 process hollowing technique
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Amadey bot
Yara detected Amadeys Clipper DLL
Yara detected Amadeys stealer DLL
Yara detected Glupteba
Yara detected LummaC Stealer
Yara detected Mystic Stealer
Yara detected RedLine Stealer
Yara detected SmokeLoader
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1329642 Sample: RzPzySYQT8.exe Startdate: 21/10/2023 Architecture: WINDOWS Score: 100 161 redirecthome.com 2->161 163 www.google.com 2->163 165 6 other IPs or domains 2->165 193 Snort IDS alert for network traffic 2->193 195 Multi AV Scanner detection for domain / URL 2->195 197 Found malware configuration 2->197 199 19 other signatures 2->199 15 RzPzySYQT8.exe 1 2->15         started        18 svchost.exe 2->18         started        21 svchost.exe 2->21         started        23 2 other processes 2->23 signatures3 process4 dnsIp5 265 Contains functionality to inject code into remote processes 15->265 267 Writes to foreign memory regions 15->267 269 Allocates memory in foreign processes 15->269 271 Injects a PE file into a foreign processes 15->271 25 AppLaunch.exe 15->25         started        28 conhost.exe 15->28         started        167 127.0.0.1 unknown unknown 18->167 30 WerFault.exe 21->30         started        signatures6 process7 signatures8 247 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 25->247 249 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 25->249 251 Maps a DLL or memory area into another process 25->251 253 2 other signatures 25->253 32 explorer.exe 28 36 25->32 injected 37 Conhost.exe 25->37         started        process9 dnsIp10 155 5.42.65.80, 49769, 80 RU-KSTVKolomnaGroupofcompaniesGuarantee-tvRU Russian Federation 32->155 157 redirecthome.com 84.32.84.43 NTT-LT-ASLT Lithuania 32->157 159 5 other IPs or domains 32->159 113 C:\Users\user\AppData\Local\Temp224.exe, PE32 32->113 dropped 115 C:\Users\user\AppData\Local\Temp\CEAB.exe, PE32 32->115 dropped 117 C:\Users\user\AppData\Local\Temp\C515.exe, PE32 32->117 dropped 119 12 other files (11 malicious) 32->119 dropped 187 System process connects to network (likely due to code injection or exploit) 32->187 189 Benign windows process drops PE files 32->189 191 Hides that the sample has been downloaded from the Internet (zone.identifier) 32->191 39 53B1.exe 4 32->39         started        43 A797.exe 32->43         started        45 6CDC.exe 32->45         started        47 8 other processes 32->47 file11 signatures12 process13 dnsIp14 137 C:\Users\user\AppData\Local\...\Yv9Iq9Uz.exe, PE32 39->137 dropped 139 C:\Users\user\AppData\Local\...\6nW39CU.exe, PE32 39->139 dropped 231 Antivirus detection for dropped file 39->231 233 Multi AV Scanner detection for dropped file 39->233 235 Machine Learning detection for dropped file 39->235 50 Yv9Iq9Uz.exe 4 39->50         started        141 C:\Users\user\AppData\Local\...\toolspub2.exe, PE32 43->141 dropped 143 C:\Users\user\AppData\Local\...\latestX.exe, PE32+ 43->143 dropped 145 C:\Users\user\AppData\Local\Temp\kos2.exe, PE32 43->145 dropped 147 C:\...\31839b57a4f11171d6abc8bbc4451ee4.exe, PE32 43->147 dropped 237 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 43->237 54 31839b57a4f11171d6abc8bbc4451ee4.exe 43->54         started        56 toolspub2.exe 43->56         started        149 C:\Users\user\AppData\Local\...\explothe.exe, PE32 45->149 dropped 58 explothe.exe 45->58         started        175 185.196.9.65 SIMPLECARRIERCH Switzerland 47->175 177 77.91.124.55, 19071 ECOTEL-ASRU Russian Federation 47->177 179 2 other IPs or domains 47->179 239 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 47->239 241 Found many strings related to Crypto-Wallets (likely being stolen) 47->241 243 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 47->243 245 Tries to harvest and steal browser information (history, passwords, etc) 47->245 61 chrome.exe 47->61         started        63 chrome.exe 47->63         started        65 conhost.exe 47->65         started        67 4 other processes 47->67 file15 signatures16 process17 dnsIp18 121 C:\Users\user\AppData\Local\...\lC7EY8RZ.exe, PE32 50->121 dropped 123 C:\Users\user\AppData\Local\...\5kg44bc.exe, PE32 50->123 dropped 201 Antivirus detection for dropped file 50->201 203 Multi AV Scanner detection for dropped file 50->203 205 Machine Learning detection for dropped file 50->205 69 lC7EY8RZ.exe 4 50->69         started        207 Detected unpacking (changes PE section rights) 54->207 209 Detected unpacking (overwrites its own PE header) 54->209 211 Found Tor onion address 54->211 213 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 54->213 215 Sample uses process hollowing technique 56->215 217 Injects a PE file into a foreign processes 56->217 169 77.91.124.1, 49754, 49755, 49759 ECOTEL-ASRU Russian Federation 58->169 125 C:\Users\user\AppData\Roaming\...\clip64.dll, PE32 58->125 dropped 127 C:\Users\user\AppData\Local\...\clip64[1].dll, PE32 58->127 dropped 219 Creates an undocumented autostart registry key 58->219 221 Uses schtasks.exe or at.exe to add and modify task schedules 58->221 73 cmd.exe 58->73         started        75 schtasks.exe 58->75         started        77 rundll32.exe 58->77         started        171 192.168.2.8, 14433, 19071, 443 unknown unknown 61->171 173 239.255.255.250 unknown Reserved 61->173 79 chrome.exe 61->79         started        82 chrome.exe 61->82         started        84 chrome.exe 61->84         started        86 chrome.exe 63->86         started        file19 signatures20 process21 dnsIp22 129 C:\Users\user\AppData\Local\...\Bk9Yf2ib.exe, PE32 69->129 dropped 131 C:\Users\user\AppData\Local\...\4PP120Nf.exe, PE32 69->131 dropped 223 Antivirus detection for dropped file 69->223 225 Multi AV Scanner detection for dropped file 69->225 227 Machine Learning detection for dropped file 69->227 88 Bk9Yf2ib.exe 4 69->88         started        92 conhost.exe 73->92         started        94 cmd.exe 73->94         started        96 cacls.exe 73->96         started        100 4 other processes 73->100 98 conhost.exe 75->98         started        181 play.google.com 142.250.31.100 GOOGLEUS United States 79->181 183 142.251.163.94, 443, 49713 GOOGLEUS United States 79->183 185 12 other IPs or domains 79->185 file23 signatures24 process25 file26 151 C:\Users\user\AppData\Local\...\DH6RB5lU.exe, PE32 88->151 dropped 153 C:\Users\user\AppData\Local\...\3by5MD51.exe, PE32 88->153 dropped 255 Multi AV Scanner detection for dropped file 88->255 102 DH6RB5lU.exe 4 88->102         started        signatures27 process28 file29 133 C:\Users\user\AppData\Local\...\2Ze484sG.exe, PE32 102->133 dropped 135 C:\Users\user\AppData\Local\...\1Ku25OO5.exe, PE32 102->135 dropped 229 Multi AV Scanner detection for dropped file 102->229 106 1Ku25OO5.exe 1 102->106         started        109 2Ze484sG.exe 102->109         started        signatures30 process31 signatures32 257 Multi AV Scanner detection for dropped file 106->257 259 Writes to foreign memory regions 106->259 261 Allocates memory in foreign processes 106->261 263 Injects a PE file into a foreign processes 106->263 111 conhost.exe 106->111         started        process33
Score:
89%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/bf33824e8033ca527894888ed25ede1c9f17ab6c159f4beff4dbc8216801b618
Detection:
smokeloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bf33824e8033ca527894888ed25ede1c9f17ab6c159f4beff4dbc8216801b618/
Threat name:
Win32.Trojan.SmokeLoader
Create hunting rule
Status:
Malicious
First seen:
2023-10-21 01:31:05 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
18 of 23 (78.26%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=x4zyetuagpffe6eurchnexw6dsprpk3mcwpux37u3pecc2abwyma._file
Verdict:
malicious
Similar samples:
2e2208d8929729766d184b02f6030a0b77fb560c1bfbb69e2c56479623083675
Backdoor.TeamViewer
4cc8908c16393b39793fee6022224b5a8e7bfc4aeb2bd7e4e1532af20ea018e7
Backdoor.TeamViewer
58448c417657e36527847d43cb0adc5e910b8e5211cbf8b3fc35c52b59332c53
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753e3781aec1907cc7a901646a9b847ff8e47e9f43d4e70b4732ca1ece335527
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75ec6c815f4ca762223a0ad901defff84ae8338f4ad9970a7a606bdb1514fd99
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9db10dca22b6e4b610d74316f7a94f758d32f077666c0b775e9f0f13234f30ff
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a45f029880d68f5aecdd4ff22d8b74181e32697a2c2a4e92066d71bf2067f3b8
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eadfa96ccc8310d66e17163dca4825b97b5ca5d510faf53449a85caafdc66809
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f29f199df3da80d14283b9ab186ab9515221b10d917319f0cc3c27e09330c5f3
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fd42fff03752fe763d0e90f0c164ad376edaf3c24b7bc872c70ecf236ebf9f10
Backdoor.TeamViewer
+ 2'184 additional samples on MalwareBazaar
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:dcrat family:glupteba family:redline family:sectoprat family:smokeloader botnet:5141679758_99 botnet:pixelscloud2.0 botnet:rapta botnet:up3 botnet:wolfa botnet:yt&team cloud backdoor brand:google brand:microsoft discovery dropper evasion infostealer loader persistence phishing rat spyware stealer trojan
Link:
https://tria.ge/reports/231021-mm9l5aeb4s/
Behaviour
Checks SCSI registry key(s)
Creates scheduled task(s)
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies data under HKEY_USERS
Modifies system certificate store
Runs net.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
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 UnmapMainImage
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Program crash
Checks for VirtualBox DLLs, possible anti-VM trick
Drops file in Program Files directory
Drops file in Windows directory
Launches sc.exe
Detected potential entity reuse from brand microsoft.
Drops file in System32 directory
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Windows security modification
Downloads MZ/PE file
Drops file in Drivers directory
Modifies Windows Firewall
Possible attempt to disable PatchGuard
Stops running service(s)
Modifies boot configuration data using bcdedit
Amadey
DcRat
Detected google phishing page
Glupteba
Glupteba payload
Modifies Windows Defender Real-time Protection settings
RedLine
RedLine payload
SectopRAT
SectopRAT payload
SmokeLoader
Suspicious use of NtCreateUserProcessOtherParentProcess
Windows security bypass
Malware Config
C2 Extraction:
http://77.91.68.29/fks/
77.91.124.55:19071
http://77.91.124.1/theme/index.php
85.209.176.128:80
https://pastebin.com/raw/8baCJyMF
http://host-file-host6.com/
http://host-host-file8.com/
185.216.70.238:37515
Gathering data
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bf33824e8033/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/bf33824e8033ca527894888ed25ede1c9f17ab6c159f4beff4dbc8216801b618

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:NET
Create hunting rule
Author:malware-lu

File information

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

Web download

Backdoor.TeamViewer

Executable exe bf33824e8033ca527894888ed25ede1c9f17ab6c159f4beff4dbc8216801b618

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2719350/
  
Delivery method
Distributed via web download

Comments