MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a8ea261a8f88443529553058026027054b62c7dc2969632de08212db8293e27. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
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SHA256 hash: 5a8ea261a8f88443529553058026027054b62c7dc2969632de08212db8293e27
SHA3-384 hash: 87cfe2d532b5d882d23031f0a043c8861b1e1a4aa148c459a7e6c0d4fbd38bc76d524eff715a7087b8529e7850745a79
SHA1 hash: 3abe57e1d7073caf1711dbc4bd82df7379f47211
MD5 hash: c895410694b7aaed3c3495536c240a93
humanhash: magnesium-finch-fifteen-gee
File name:Request for Proposal – Byco project..exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:873'984 bytes
First seen:2021-05-11 10:30:08 UTC
Last seen:2021-05-11 13:30:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:qZNmP5j9ICrCUv0L0T55gKaad3KDfRtX:qg9vCUMkB1KDfRtX
Threatray 8 similar samples on MalwareBazaar
TLSH 5205023133686FE2FA7DEB7D5960108893FAB50AE321E69E7DD541ED0425F428363B42
Reporter abuse_ch
Tags:AgentTesla exe Telegram

Intelligence

File Origin
# of uploads :
4
# of downloads :
141
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/155030/
Detection(s):
SecuriteInfo.com.Scr.Malcodegdn30.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Sending a custom TCP request
Creating a window
Sending a UDP request
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.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/778562
Signature
.NET source code contains very large array initializations
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
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)
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 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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 410958 Sample: Request for Proposal #U2013... Startdate: 11/05/2021 Architecture: WINDOWS Score: 100 52 Found malware configuration 2->52 54 Multi AV Scanner detection for dropped file 2->54 56 Multi AV Scanner detection for submitted file 2->56 58 11 other signatures 2->58 7 Request for Proposal #U2013 Byco project..exe 7 2->7         started        11 NewApp.exe 5 2->11         started        13 NewApp.exe 2->13         started        process3 file4 34 C:\Users\user\AppData\Roaming\gzrJtoA.exe, PE32 7->34 dropped 36 C:\Users\user\...\gzrJtoA.exe:Zone.Identifier, ASCII 7->36 dropped 38 C:\Users\user\AppData\Local\...\tmpDCD5.tmp, XML 7->38 dropped 40 Request for Propos...co project..exe.log, ASCII 7->40 dropped 60 Injects a PE file into a foreign processes 7->60 15 Request for Proposal #U2013 Byco project..exe 17 9 7->15         started        20 schtasks.exe 1 7->20         started        62 Multi AV Scanner detection for dropped file 11->62 64 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->64 66 Machine Learning detection for dropped file 11->66 68 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 11->68 22 schtasks.exe 1 11->22         started        24 NewApp.exe 2 11->24         started        signatures5 process6 dnsIp7 42 api.telegram.org 149.154.167.220, 443, 49741, 49742 TELEGRAMRU United Kingdom 15->42 30 C:\Users\user\AppData\Local\...30ewApp.exe, PE32 15->30 dropped 32 C:\Users\user\...32ewApp.exe:Zone.Identifier, ASCII 15->32 dropped 44 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->44 46 Tries to steal Mail credentials (via file access) 15->46 48 Tries to harvest and steal ftp login credentials 15->48 50 2 other signatures 15->50 26 conhost.exe 20->26         started        28 conhost.exe 22->28         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5a8ea261a8f88443529553058026027054b62c7dc2969632de08212db8293e27/
Threat name:
ByteCode-MSIL.Infostealer.DarkStealer
Create hunting rule
Status:
Malicious
First seen:
2021-05-11 10:30:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
17 of 29 (58.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lkhkeyni7cceguuvkmcyajqcobklmld5ykljmmw6baqs3objhytq._file
Verdict:
unknown
Similar samples:
00b6b610ff7d07af06a0888ac2095085de70aae5238bb1e876128ed0ede3fb3e
AgentTesla
32b40946b375a87fbcffd5dd1c8da2b375b2f976fca535e06cb36c9d8f40e866
AgentTesla
6f88a4bdf6ca9a0b63e8dca6b56c2431acaccb7b58a6ddf5166028756c172d5a
AgentTesla
71276409f3ed154c5b43a4357d4644350d89c064e0db3ad4cca5570dbeaaa3a0
AgentTesla
7fe3cf53819cc62bd4c5812de2db482e05c0a77fbfb42413863c4967596458df
AgentTesla
b3d0bf9251e4c9e7643d80a95dc7ed46e06f062610c3f3cbcebb8ba8343ecede
AgentTesla
eb0801ae0c61475a74fbc4bbe7c89df02fd2e2473f80b31e562af202f4dc8378
AgentTesla
f2a3c147eb3cb69591f0291b5a1d324a288f86773890fd77b24f255d13feb7bc
AgentTesla
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210511-td7snt2a4a/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
AgentTesla Payload
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot1855581212:AAGSsAgiKOAKCEx8_hulz-BQit55_qDVNsM/sendDocument
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/5a8ea261a8f88443529553058026027054b62c7dc2969632de08212db8293e27

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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/155030/

Comments