MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4dc51152a636480a67ca9b50488d59800fc9a6b65afc7bfe3ae60576835a1ce6. 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 6 File information Comments

SHA256 hash: 4dc51152a636480a67ca9b50488d59800fc9a6b65afc7bfe3ae60576835a1ce6
SHA3-384 hash: ee5e9a487c1d5cb7c8247211eeac0cd84cccadee6bb492de473f1eaef928572053d79f906b0a92314987a10ada0a8fe0
SHA1 hash: 598490e031336eed973624f8a74f9e5390581be4
MD5 hash: 2783c5184958b0d13f018246b38c9ac9
humanhash: bluebird-lion-william-mirror
File name:samples.exe
Download: download sample
Signature AgentTesla
File size:1'678'336 bytes
First seen:2022-02-22 01:13:04 UTC
Last seen:2022-02-22 02:51:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:UbHchF631MVVmaWzNIT4rdvEbipP4fgdX0wRstmeb2bU/5aOMLTHcSUf:UbHchc1MV2pI0rdjBvdXxsDSbRO0Zi
Threatray 15'790 similar samples on MalwareBazaar
TLSH T12075F18C6DB640FBD7368A7D8DECE861BAF8B5123704F67975C61B05037069E48D322A
File icon (PE):PE icon
dhash icon 6cccf4e8e8f8d8c4 (1 x AgentTesla)
Reporter malwarelabnet
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
232
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe obfuscated packed replace.exe
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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
Found malware configuration
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
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 576027 Sample: samples.exe Startdate: 22/02/2022 Architecture: WINDOWS Score: 100 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 Multi AV Scanner detection for dropped file 2->52 54 10 other signatures 2->54 8 samples.exe 7 2->8         started        process3 file4 36 C:\Users\user\AppData\...\BbtJIWFleK.exe, PE32 8->36 dropped 38 C:\Users\...\BbtJIWFleK.exe:Zone.Identifier, ASCII 8->38 dropped 40 C:\Users\user\AppData\Local\...\tmp3B85.tmp, XML 8->40 dropped 42 C:\Users\user\AppData\...\samples.exe.log, ASCII 8->42 dropped 56 Uses schtasks.exe or at.exe to add and modify task schedules 8->56 58 Adds a directory exclusion to Windows Defender 8->58 60 Injects a PE file into a foreign processes 8->60 12 samples.exe 6 8->12         started        16 powershell.exe 25 8->16         started        18 schtasks.exe 1 8->18         started        20 samples.exe 8->20         started        signatures5 process6 file7 44 C:\Users\user\AppData\Roaming\ajACGGXzU.exe, PE32 12->44 dropped 46 C:\Users\...\ajACGGXzU.exe:Zone.Identifier, ASCII 12->46 dropped 62 Adds a directory exclusion to Windows Defender 12->62 22 powershell.exe 22 12->22         started        24 schtasks.exe 12->24         started        26 samples.exe 12->26         started        28 conhost.exe 16->28         started        30 conhost.exe 18->30         started        signatures8 process9 process10 32 conhost.exe 22->32         started        34 conhost.exe 24->34         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-02-22 01:14:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Checks computer location settings
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
e33254e2ad4d279914a29450f98d1750a9f513fc8ddb853e0dd8346b805faa43
MD5 hash:
b597cce7bfc65e56fa69ebb7f413a33f
SHA1 hash:
7ee40df5ac783432e7c9f7be4f7ed1f286345d58
SH256 hash:
7a382831e0cdcfd17b422ba00ee7c1ef939a1112c4445cd57efcd05867d165b3
MD5 hash:
f248d1717b1d69f36425e989363fdee7
SHA1 hash:
7e5ef9f1e0e6f5f5f413fc490cb9fbc90706410b
SH256 hash:
1e28652a3dbe99ee3f63934e38ea2a1ee681821737b440aca34a7f19c3bcac16
MD5 hash:
56398ab55065d3abb3531b07a4d6bf70
SHA1 hash:
7602ee8a274eabeadc0c6274ee40450a6b7cd3a6
SH256 hash:
4e3fa346d541069171457c4a1787c8ce0414de126f2ac55c09b30a50ead53402
MD5 hash:
ebd6b853293269c704dcb7074aaead2d
SHA1 hash:
365c7d4dac89fce3292ac604211dce8c7e98dcd2
SH256 hash:
4dc51152a636480a67ca9b50488d59800fc9a6b65afc7bfe3ae60576835a1ce6
MD5 hash:
2783c5184958b0d13f018246b38c9ac9
SHA1 hash:
598490e031336eed973624f8a74f9e5390581be4
Please note that we are no longer able to provide a coverage score for Virus Total.

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:ach_AgentTesla_20200929
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:AgentTeslaV3
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_agent_tesla_v1
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information


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

Comments