MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 191ba5413e8cab449cfb39d083b2fa780c5fd331b6e7a0654e536fbb23d20458. 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


AgentTesla


Vendor detections: 16


Intelligence 16 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 191ba5413e8cab449cfb39d083b2fa780c5fd331b6e7a0654e536fbb23d20458
SHA3-384 hash: 07b488b28631570a5726a8f997991f95e84e34ed8d79c1d299289acf76521b286cea180fe13687abab0c7b3441fcc7be
SHA1 hash: 73df34bd2bdd4a00476f5cfe7da4bed436d60843
MD5 hash: 52bafc4196a3d4ae8082e80e4608f73b
humanhash: robin-eleven-charlie-indigo
File name:AWB # 1835257406.PDF.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'219'072 bytes
First seen:2022-12-13 23:17:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:pm5SHl2hX71zph38MaiEbSh64O2u5/O775nMMMMMMMMMMMuMMMMMMMMMMMMMMMM8:ECbihh6aK/8MMMMMMMMMMMuMMMMMMMMs
Threatray 20'221 similar samples on MalwareBazaar
TLSH T13345EBBF8BFA5033D674D2B68FF1C473B756AC623100AD2951D93B09526AE27B5C201E
TrID 48.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
28.5% (.EXE) InstallShield setup (43053/19/16)
6.9% (.EXE) Win64 Executable (generic) (10523/12/4)
4.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 74fcd6e4d4d4d4d4 (17 x AgentTesla, 4 x Formbook, 2 x RemcosRAT)
Reporter Anonymous
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
AWB # 1835257406.PDF.exe
Verdict:
Malicious activity
Analysis date:
2022-12-13 23:18:25 UTC
Tags:
installer agenttesla
Link:
https://app.any.run/tasks/0606c2c5-caba-4e20-b252-d02241d73fcd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/346054/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Win.Trojan.Nemesis-9952320-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
clipbanker nemesis packed strictor
Link:
https://www.filescan.io/uploads/6399082b04e0e79bdf42d168/reports/2a8b08fe-6c6e-4ea0-a32d-165867c97855/overview
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/dc962796-e307-4297-85d1-e858dcbd28d8
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1133865
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
.NET source code contains very large strings
.NET source code references suspicious native API functions
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
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)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 766588 Sample: AWB # 1835257406.PDF.exe Startdate: 14/12/2022 Architecture: WINDOWS Score: 100 44 Snort IDS alert for network traffic 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Sigma detected: Scheduled temp file as task from temp location 2->48 50 14 other signatures 2->50 7 AWB # 1835257406.PDF.exe 5 2->7         started        11 WcQdoTk.exe 4 2->11         started        13 LdtJsTw.exe 2 2->13         started        15 LdtJsTw.exe 1 2->15         started        process3 file4 38 C:\Users\user\AppData\Roaming\WcQdoTk.exe, PE32 7->38 dropped 40 C:\Users\user\AppData\Local\Temp\tmp328.tmp, XML 7->40 dropped 66 Writes to foreign memory regions 7->66 68 Injects a PE file into a foreign processes 7->68 17 RegSvcs.exe 17 5 7->17         started        22 schtasks.exe 1 7->22         started        70 Multi AV Scanner detection for dropped file 11->70 72 Machine Learning detection for dropped file 11->72 24 RegSvcs.exe 11->24         started        26 schtasks.exe 1 11->26         started        28 conhost.exe 13->28         started        30 conhost.exe 15->30         started        signatures5 process6 dnsIp7 42 api.telegram.org 149.154.167.220, 443, 49696, 49697 TELEGRAMRU United Kingdom 17->42 36 C:\Users\user\AppData\Roaming\...\LdtJsTw.exe, PE32 17->36 dropped 52 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->52 54 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->54 56 Tries to steal Mail credentials (via file / registry access) 17->56 58 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 17->58 32 conhost.exe 22->32         started        60 Tries to harvest and steal ftp login credentials 24->60 62 Tries to harvest and steal browser information (history, passwords, etc) 24->62 64 Hides that the sample has been downloaded from the Internet (zone.identifier) 24->64 34 conhost.exe 26->34         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/191ba5413e8cab449cfb39d083b2fa780c5fd331b6e7a0654e536fbb23d20458/
Threat name:
Win32.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2022-12-13 05:32:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
58
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=den2kqj6rsvujhh3hhiihmx2pagf7uzrw3t2azkoknx3wi6sarma._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
927bf1f7d51aacd7c7e504a0dd55f933b0cf845fa76dbe28740689c1aadb79c1
AgentTesla
97c28174a64eab003f2a1b2f4a742acbcbb8394249d136d176c19711908da21a
AgentTesla
a1503da6887c206ae3070cc780474897b492572a3d46b013d2215d529d0d0231
AgentTesla
ad5af6dd7b293e650c8e5b740aa48de75ae6aec0360489a5306b8cab6482a99f
AgentTesla
b37d9a54e81fc3feac68afee6c776fea62e111491db1da57456452beabe118ac
AgentTesla
b3dfa295345931a2e11de2d9b98f350b2744c415d2258a2745f8bb8d9cc3a4b2
AgentTesla
be6eddee7716fd87a1ff8c8b407bc3895b6acb165ecbaec087f1ebc4914d438c
AgentTesla
da3907286f538586573df79364298076e3e1605daadc7de588e57fe1544604df
AgentTesla
+ 20'211 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/221213-299b7sbf8x/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot5495243543:AAG3XPeGW7yqfXF6_EXjGSfO9SWHJTpqVsU/
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/2c113177-fd05-4633-b646-48db5d5e29c5
Unpacked files
SH256 hash:
a327516357b9fa1a75753b3fbd0030e13f374be7cefcdf983d0b731f278b0c59
MD5 hash:
404efdeb9931733904da07f96fabeb72
SHA1 hash:
7ce363cd612f1d9a90b33ec196c4d0a49cdaee02
Link:
https://www.unpac.me/results/51ca31e3-200e-45f2-9c7e-259dd3fc4799/
SH256 hash:
a67100c8e1599e079bd4cf3b60cb051478627cfbda619c12b75f52c05e79c851
MD5 hash:
90d1b09d7c3fa3d92553d87dca8068ce
SHA1 hash:
6abfca62e83bec7db70c1266f9e1f787be04b578
Link:
https://www.unpac.me/results/51ca31e3-200e-45f2-9c7e-259dd3fc4799/
SH256 hash:
7d1bc9d8e328e6c91872265b770107237efd7b75517777e059a22cf267652dc5
MD5 hash:
e473ea226cbdbe375938e9f4db21c97b
SHA1 hash:
2f0ab6de0459e0f4e40900e2f65e649a091221e5
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/51ca31e3-200e-45f2-9c7e-259dd3fc4799/
Parent samples :
b921e7134e8ad218e90ad88491c0135ab7c00d5557c9781aea69de52c5d99207
2cae27fe5b93620d4d7f1b6e16566c618c23aaa11230ebb33a2bf57c0e576202
1ea31d04175fb842e43adb57eadd01486fbad17841f83d5eff065b67baeb4d69
191ba5413e8cab449cfb39d083b2fa780c5fd331b6e7a0654e536fbb23d20458
a2579723ae65b526602d6404cbe9e0239c1ec7ed08222afcbe9e65e35a7d49d8
e43659dac9e8276ec4f3948c5211c3c64b34b34307b1ad15681c81529c8b64ae
478d4b7a98b6885c7100de1e9dcd36eed9ecc95148f39bdd7af84be7ced2478b
b6cc5c882ca5a0cf1bddfd44343046c47ef2c90a519f1683467808752b7f1720
29c562c44604ece170da8b50d8d952961024f7d2f8c2301bbf28d31d2ba79a5e
01547e612fc731951049a35ed50621ffaecd45d0b0946c98f4c3c90730a9dda4
SH256 hash:
191ba5413e8cab449cfb39d083b2fa780c5fd331b6e7a0654e536fbb23d20458
MD5 hash:
52bafc4196a3d4ae8082e80e4608f73b
SHA1 hash:
73df34bd2bdd4a00476f5cfe7da4bed436d60843
Link:
https://www.unpac.me/results/51ca31e3-200e-45f2-9c7e-259dd3fc4799/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/191ba5413e8c/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/191ba5413e8cab449cfb39d083b2fa780c5fd331b6e7a0654e536fbb23d20458

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: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.

Malspam

AgentTesla

Executable exe 191ba5413e8cab449cfb39d083b2fa780c5fd331b6e7a0654e536fbb23d20458

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/346054/

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