MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cef2bd1b1b01dda513421bb2cee542c016b3d25103e4086f6c5684e687f48ae8. 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: 16


Intelligence 16 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cef2bd1b1b01dda513421bb2cee542c016b3d25103e4086f6c5684e687f48ae8
SHA3-384 hash: 0350eaa8858b6ab97ca2322362cd96ec96153bb4c6c8ae7676ab483a324c06e338bf0def28feb6d8c8018af0a45bc8e5
SHA1 hash: ab6496e3746be5b561b2b1d6d9732f8d423237ee
MD5 hash: 1cf828731729327b1649576c78b3c0eb
humanhash: wisconsin-fruit-oranges-floor
File name:file
Download: download sample
Signature Backdoor.TeamViewer
Create hunting rule
File size:1'547'776 bytes
First seen:2023-10-11 20:31:03 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 24576:uyZmM4jHGLSp+XmwvY87x4EipROnyFPsXQg2Lz4CGrO1bDPpdeFZsFj42rEEfJFJ:9ZDtLSp+KaxnGcn2EgjGrO1bd1FjUEfc
Threatray 564 similar samples on MalwareBazaar
TLSH T1ED652343F6D85172E9B11B3088F346834B3E7D31C96893AB7A85ED994E72AC4F231716
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://77.91.68.249/navi/kur90.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
304
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-10-11 20:33:24 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d8584517-e5ff-45af-96a5-57f211728b80

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
SmokeLoader
Create hunting rule
Link:
https://www.capesandbox.com/analysis/453511/
Detection(s):
Sanesecurity.Malware.28840.BadO.UNOFFICIAL
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
Launching a process
Launching the default Windows debugger (dwwin.exe)
Launching a service
Searching for the window
Creating a file
Blocking the Windows Defender launch
Disabling the operating system update service
Unauthorized injection to a system process
Gathering data
Verdict:
Likely Malicious
Threat level:
  5/10
Confidence:
100%
Tags:
advpack anti-vm CAB control explorer installer installer lolbin packed rundll32 setupapi sfx shell32
Link:
https://www.filescan.io/uploads/6527060d422e14c65a8d7544/reports/ad664581-8d6d-4f03-87cc-1b98077251eb/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/cef2bd1b1b01dda513421bb2cee542c016b3d25103e4086f6c5684e687f48ae8
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:
RedLine stealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c36aeaac-bd65-4495-8001-b8ffec63d4e9
Result
Threat name:
Amadey, Babadeda, Healer AV Disabler, My
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1324147
Signature
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
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)
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 sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies windows update settings
Phishing site detected (based on logo match)
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 Babadeda
Yara detected Healer AV Disabler
Yara detected Mystic Stealer
Yara detected RedLine Stealer
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1324147 Sample: file.exe Startdate: 11/10/2023 Architecture: WINDOWS Score: 100 154 www3.l.google.com 2->154 156 www.google.com 2->156 158 10 other IPs or domains 2->158 168 Snort IDS alert for network traffic 2->168 170 Found malware configuration 2->170 172 Malicious sample detected (through community Yara rule) 2->172 174 15 other signatures 2->174 15 file.exe 1 4 2->15         started        18 svchost.exe 24 106 2->18         started        20 rundll32.exe 2->20         started        22 rwerrcc 2->22         started        signatures3 process4 file5 148 C:\Users\user\AppData\Local\...\5FS7aR8.exe, PE32 15->148 dropped 150 C:\Users\user\AppData\Local\...\jf1rC12.exe, PE32 15->150 dropped 24 jf1rC12.exe 1 4 15->24         started        27 WerFault.exe 2 18->27         started        30 WerFault.exe 2 18->30         started        32 WerFault.exe 18->32         started        34 WerFault.exe 18->34         started        process6 file7 132 C:\Users\user\AppData\Local\...\4gD429sj.exe, PE32 24->132 dropped 134 C:\Users\user\AppData\Local\...\uQ7UU45.exe, PE32 24->134 dropped 36 uQ7UU45.exe 1 4 24->36         started        39 4gD429sj.exe 24->39         started        228 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 27->228 230 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 27->230 signatures8 process9 file10 116 C:\Users\user\AppData\Local\...\3mQ94Pa.exe, PE32 36->116 dropped 118 C:\Users\user\AppData\Local\...\pr3sy68.exe, PE32 36->118 dropped 42 3mQ94Pa.exe 36->42         started        45 pr3sy68.exe 1 4 36->45         started        192 Writes to foreign memory regions 39->192 194 Allocates memory in foreign processes 39->194 196 Injects a PE file into a foreign processes 39->196 48 AppLaunch.exe 39->48         started        51 conhost.exe 39->51         started        53 AppLaunch.exe 39->53         started        55 WerFault.exe 39->55         started        signatures11 process12 dnsIp13 214 Writes to foreign memory regions 42->214 216 Allocates memory in foreign processes 42->216 218 Injects a PE file into a foreign processes 42->218 57 AppLaunch.exe 42->57         started        60 conhost.exe 42->60         started        62 WerFault.exe 42->62         started        140 C:\Users\user\AppData\Local\...\2cV1690.exe, PE32 45->140 dropped 142 C:\Users\user\AppData\Local\...\1rD42Pc9.exe, PE32 45->142 dropped 64 1rD42Pc9.exe 45->64         started        66 2cV1690.exe 1 45->66         started        152 77.91.124.55, 19071, 49720, 49746 ECOTEL-ASRU Russian Federation 48->152 220 Tries to harvest and steal browser information (history, passwords, etc) 48->220 file14 signatures15 process16 signatures17 198 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 57->198 200 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 57->200 202 Maps a DLL or memory area into another process 57->202 212 2 other signatures 57->212 68 explorer.exe 57->68 injected 204 Contains functionality to inject code into remote processes 64->204 206 Writes to foreign memory regions 64->206 208 Allocates memory in foreign processes 64->208 73 AppLaunch.exe 9 1 64->73         started        75 AppLaunch.exe 64->75         started        77 WerFault.exe 22 16 64->77         started        210 Injects a PE file into a foreign processes 66->210 79 AppLaunch.exe 12 66->79         started        81 WerFault.exe 21 16 66->81         started        83 conhost.exe 66->83         started        85 AppLaunch.exe 66->85         started        process18 dnsIp19 160 5.42.65.80, 49734, 80 RU-KSTVKolomnaGroupofcompaniesGuarantee-tvRU Russian Federation 68->160 162 77.91.68.29, 49723, 80 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 68->162 166 3 other IPs or domains 68->166 120 C:\Users\user\AppData\Local\Temp\C3E3.exe, PE32 68->120 dropped 122 C:\Users\user\AppData\Local\Temp\8ACF.exe, PE32 68->122 dropped 124 C:\Users\user\AppData\Local\Temp\4084.exe, PE32 68->124 dropped 126 9 other files (3 malicious) 68->126 dropped 176 System process connects to network (likely due to code injection or exploit) 68->176 178 Benign windows process drops PE files 68->178 180 Hides that the sample has been downloaded from the Internet (zone.identifier) 68->180 87 2391.exe 68->87         started        90 2854.exe 68->90         started        93 33FF.exe 68->93         started        95 3 other processes 68->95 182 Modifies windows update settings 73->182 184 Disable Windows Defender notifications (registry) 73->184 186 Disable Windows Defender real time protection (registry) 73->186 188 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 75->188 190 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 75->190 164 5.42.92.211, 49715, 49725, 80 RU-KSTVKolomnaGroupofcompaniesGuarantee-tvRU Russian Federation 79->164 file20 signatures21 process22 file23 128 C:\Users\user\AppData\Local\...\6Dp11Rc.exe, PE32 87->128 dropped 130 C:\Users\user\AppData\Local\...\Rz6mS2xT.exe, PE32 87->130 dropped 97 Rz6mS2xT.exe 87->97         started        222 Writes to foreign memory regions 90->222 224 Allocates memory in foreign processes 90->224 226 Injects a PE file into a foreign processes 90->226 100 conhost.exe 90->100         started        102 conhost.exe 93->102         started        104 conhost.exe 95->104         started        signatures24 process25 file26 112 C:\Users\user\AppData\Local\...\5qR85qT.exe, PE32 97->112 dropped 114 C:\Users\user\AppData\Local\...\HA1wO7Zw.exe, PE32 97->114 dropped 106 HA1wO7Zw.exe 97->106         started        process27 file28 136 C:\Users\user\AppData\Local\...\vv7Km0lB.exe, PE32 106->136 dropped 138 C:\Users\user\AppData\Local\...\4iH109at.exe, PE32 106->138 dropped 109 vv7Km0lB.exe 106->109         started        process29 file30 144 C:\Users\user\AppData\Local\...\3lf8FJ02.exe, PE32 109->144 dropped 146 C:\Users\user\AppData\Local\...\bB6LE5yK.exe, PE32 109->146 dropped
Detection:
smokeloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/cef2bd1b1b01dda513421bb2cee542c016b3d25103e4086f6c5684e687f48ae8/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-10-11 20:32:07 UTC
File Type:
PE (Exe)
Extracted files:
152
AV detection:
13 of 38 (34.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=z3zl2gy3aho2ke2cdozm5zkcyallhusrapsaq33mk2conb7urlua._file
Verdict:
malicious
Similar samples:
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Backdoor.TeamViewer
+ 554 additional samples on MalwareBazaar
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:dcrat family:healer family:redline family:sectoprat family:smokeloader botnet:@ytlogsbot botnet:breha botnet:kukish botnet:pixelscloud backdoor dropper evasion infostealer persistence rat trojan
Link:
https://tria.ge/reports/231011-zara8sde97/
Behaviour
Checks SCSI registry key(s)
Creates scheduled task(s)
Runs net.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Program crash
Launches sc.exe
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Uses the VBS compiler for execution
Downloads MZ/PE file
Stops running service(s)
Amadey
DcRat
Detects Healer an antivirus disabler dropper
Healer
Modifies Windows Defender Real-time Protection settings
RedLine
RedLine payload
SectopRAT
SectopRAT payload
SmokeLoader
Malware Config
C2 Extraction:
http://77.91.68.29/fks/
77.91.124.55:19071
http://77.91.124.1/theme/index.php
85.209.176.171:80
185.216.70.238:37515
Unpacked files
SH256 hash:
8eac78466e18ca8b6798fb41f324cdc09ace71e40a9dc8613af9e569c69fb5fa
MD5 hash:
f47a4814384eed89de7ed769627256fa
SHA1 hash:
1f69da8fba31c7ce9d020dc52f6b2c6fdd88d667
Link:
https://www.unpac.me/results/d9e1d63f-fd7e-4fd0-8c89-b2615e5a021c/
SH256 hash:
4635d5eab2d91868afb3abdd5697173eabb457b3867d10230dc27fc9578b1961
MD5 hash:
fa781d9fa3581d91258a47dd112de584
SHA1 hash:
3db33340ef2cac88df7749f8bdc66467980262f3
Link:
https://www.unpac.me/results/d9e1d63f-fd7e-4fd0-8c89-b2615e5a021c/
SH256 hash:
cef2bd1b1b01dda513421bb2cee542c016b3d25103e4086f6c5684e687f48ae8
MD5 hash:
1cf828731729327b1649576c78b3c0eb
SHA1 hash:
ab6496e3746be5b561b2b1d6d9732f8d423237ee
Link:
https://www.unpac.me/results/d9e1d63f-fd7e-4fd0-8c89-b2615e5a021c/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cef2bd1b1b01/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Redline
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/cef2bd1b1b01dda513421bb2cee542c016b3d25103e4086f6c5684e687f48ae8

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:pe_no_import_table
Create hunting rule
Author:qux
Description:Detects exe does not have import table
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
Cape
Cape
https://www.capesandbox.com/analysis/453511/

Comments