MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 831b339956fc2afd92ef6ec2ba27e4868cec86026d0c7aec2faaf8b7a56c1391. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 831b339956fc2afd92ef6ec2ba27e4868cec86026d0c7aec2faaf8b7a56c1391
SHA3-384 hash: 62eb98704415f6365fa5a7a1e6c3a8c758d59e743c513e9291e89c2a8138526896c3a31688bc2863044c84bdbc35eb1e
SHA1 hash: 86bb1736b4ed27f5f80754f5b3ccdb02a81d9b30
MD5 hash: 61a5356bd1ecbffb213ccc6e8ee4624c
humanhash: freddie-cup-beer-maine
File name:SecuriteInfo.com.W32.AIDetectNet.01.4957.29919
Download: download sample
Signature AgentTesla
Create hunting rule
File size:950'272 bytes
First seen:2022-06-16 12:43:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:scojYcGHaVwirtuzBPyaM2ECPEyACMhABuR25W0hIPoP/G8sz5+Ia5bxZgi2shFu:s8cBBrKBPiCs0JKaxSQuN0Qshgt53
TLSH T112152321827C5320FDEE67F7945292284BF6B0053401FB698FE1F4DE75A5B80AB89A17
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter SecuriteInfoCom
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
297
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/280698/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.4957.29919.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62ab2598916056ae171390ca/reports/934afb90-5a9f-4fbc-b562-2ba8b2965fe4/overview
Result
Verdict:
UNKNOWN
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/0b5ffc99-4a6b-47c7-838f-fe50b73bc1c0
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1014581
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
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 schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 647077 Sample: SecuriteInfo.com.W32.AIDete... Startdate: 16/06/2022 Architecture: WINDOWS Score: 100 46 Snort IDS alert for network traffic 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for dropped file 2->50 52 11 other signatures 2->52 8 SecuriteInfo.com.W32.AIDetectNet.01.4957.exe 3 2->8         started        process3 file4 28 SecuriteInfo.com.W...Net.01.4957.exe.log, ASCII 8->28 dropped 54 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->54 56 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->56 58 Uses schtasks.exe or at.exe to add and modify task schedules 8->58 60 2 other signatures 8->60 12 SecuriteInfo.com.W32.AIDetectNet.01.4957.exe 6 8->12         started        signatures5 process6 file7 30 C:\Users\user\AppData\...\YbnJvKoTvOmSdB.exe, PE32 12->30 dropped 32 C:\...\YbnJvKoTvOmSdB.exe:Zone.Identifier, ASCII 12->32 dropped 34 C:\Users\user\AppData\Local\Temp\tmp70.tmp, XML 12->34 dropped 62 Adds a directory exclusion to Windows Defender 12->62 64 Injects a PE file into a foreign processes 12->64 16 SecuriteInfo.com.W32.AIDetectNet.01.4957.exe 15 6 12->16         started        20 powershell.exe 24 12->20         started        22 schtasks.exe 1 12->22         started        signatures8 process9 dnsIp10 36 api.telegram.org 149.154.167.220, 443, 49852, 49855 TELEGRAMRU United Kingdom 16->36 38 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->38 40 Tries to steal Mail credentials (via file / registry access) 16->40 42 Tries to harvest and steal ftp login credentials 16->42 44 2 other signatures 16->44 24 conhost.exe 20->24         started        26 conhost.exe 22->26         started        signatures11 process12
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/831b339956fc2afd92ef6ec2ba27e4868cec86026d0c7aec2faaf8b7a56c1391/
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Create hunting rule
Status:
Malicious
First seen:
2022-06-16 09:21:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qmnthgkw7qvp3expn3bluj7eq2gozbqcnughv3bpvl4lpjlmcoiq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/220616-pygftsheh4/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot2043981125:AAGaa5K6uc5rV5LARENbXhpoD0InPrKgKJI/sendDocument
Unpacked files
SH256 hash:
fe78017f2153de0c5ca645c4255899ab044502fe5c77d5c04ced635d9fe981d9
MD5 hash:
ab47b292d4d39311539a0b97e6661f4f
SHA1 hash:
54cd9efbebe4f41b23e6f24fffac0da8f72d921b
Link:
https://www.unpac.me/results/810001bd-42f5-428f-b963-249e7abdcf5b/
SH256 hash:
88b27843891e810bb0622c73e4fb6ea985d879a9e3d4c98db62de17be82c62d2
MD5 hash:
1c71406bb34af8e40506b45bbde81324
SHA1 hash:
b0f59bcfb06587d59d964ba045ce984d2312166a
Link:
https://www.unpac.me/results/810001bd-42f5-428f-b963-249e7abdcf5b/
SH256 hash:
f33f728d2c8571945bb3947ca788da2db43637c62d5aa4029f89238c7774521b
MD5 hash:
f5516b957971d3302b502f48195c79c0
SHA1 hash:
a02231020bf35bb3d5b2760d4b347336dd0c3488
Link:
https://www.unpac.me/results/810001bd-42f5-428f-b963-249e7abdcf5b/
SH256 hash:
84238dc32dc2c72716d7233f509b43a45617e2a24ca07eecda58ae37a704b90b
MD5 hash:
1d6115ad56b1707c8afa1a65f22afc96
SHA1 hash:
58cbf25298e84cf9d91da78ae370ac5ddbb2c3fd
Link:
https://www.unpac.me/results/810001bd-42f5-428f-b963-249e7abdcf5b/
SH256 hash:
b05536bc5f92e9b6054515a944f8c96202ff23e6ef039dc617f8737ba543c09b
MD5 hash:
bb0869e34035aeb561619e2cda798449
SHA1 hash:
1b44f78ea2a0d1d37e5d42b9cb30776b2bc9a339
Link:
https://www.unpac.me/results/810001bd-42f5-428f-b963-249e7abdcf5b/
SH256 hash:
831b339956fc2afd92ef6ec2ba27e4868cec86026d0c7aec2faaf8b7a56c1391
MD5 hash:
61a5356bd1ecbffb213ccc6e8ee4624c
SHA1 hash:
86bb1736b4ed27f5f80754f5b3ccdb02a81d9b30
Link:
https://www.unpac.me/results/810001bd-42f5-428f-b963-249e7abdcf5b/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/831b339956fc/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/831b339956fc2afd92ef6ec2ba27e4868cec86026d0c7aec2faaf8b7a56c1391

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:exploit_any_poppopret
Create hunting rule
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
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.

Cape
Cape
https://www.capesandbox.com/analysis/280698/

Comments