MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4c3faf064979c03b4abd8e1b0c0b64b4753d6f702401509ee4989319d079357d. 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: 12


Intelligence 12 IOCs YARA 7 File information Comments

SHA256 hash: 4c3faf064979c03b4abd8e1b0c0b64b4753d6f702401509ee4989319d079357d
SHA3-384 hash: f08b41d28b8fb6b8c8b6fdce9cd73fc5812abd48217e7ac445b03b1c88ce40882a6446a73303c5edf149239eea6466d3
SHA1 hash: 50e89252950c924ef81520b6c527459c92ec9d03
MD5 hash: 21bdc587f6630da32bbb95e3edafd8a6
humanhash: bakerloo-quebec-romeo-blossom
File name:CONFIRM PROFORMA INVOICE NO 21091042 21091044.exe
Download: download sample
Signature AgentTesla
File size:691'200 bytes
First seen:2021-10-09 07:51:58 UTC
Last seen:2021-10-11 07:23:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:Olf7khylvNBOFYFx2wzDa3+qoTxjmvoBjEA57st/+6Mb/YErzEEwr:qWeF8FYFUSDg+qoTxSkEuAp+6MTYmEE4
TLSH T197E4DF2239BA5E46F8D957B00562F2E023767E2A66C7D21DE845328C7E33B4387C1797
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
342
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CONFIRM PROFORMA INVOICE NO 21091042 21091044.exe
Verdict:
Suspicious activity
Analysis date:
2021-10-09 07:53:20 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Modifies the hosts 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)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-10-09 07:52:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
28
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
agenttesla
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
d434e7cb4105d7e760a39a1a8a1306338b00fbd6507025d53e4c44ede73d3788
MD5 hash:
6613b992e916924c3f38a179bb9866ab
SHA1 hash:
cd5741f4d0a4685c5fd9c9e2e708bbf33ec1691a
SH256 hash:
9de457394a86ec7ae953b2a1e9790876fa151dedfec77753e54ffcb5aac61d9d
MD5 hash:
d9f4180d9ec11da75fb54cd506ab0b1d
SHA1 hash:
51a4b12e9f17cc0d1556bae06c24aaeb254cbb08
SH256 hash:
dc2609cbbeb8eb3571db5dfda5898d111b1556908873994c0ee8c5772157ccf6
MD5 hash:
b61f576bdc14bd41d947b6018922b8dd
SHA1 hash:
43e258ac0a74840100beacde84c63083c131791e
SH256 hash:
4c3faf064979c03b4abd8e1b0c0b64b4753d6f702401509ee4989319d079357d
MD5 hash:
21bdc587f6630da32bbb95e3edafd8a6
SHA1 hash:
50e89252950c924ef81520b6c527459c92ec9d03
Malware family:
Agent Tesla v3
Verdict:
Malicious
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: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.

Malspam

AgentTesla

Executable exe 4c3faf064979c03b4abd8e1b0c0b64b4753d6f702401509ee4989319d079357d

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

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