MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a66c307a5d1ffdad9f9204aa8eccde9a0975d7344b6bfaa89ecd2268a85a9918. 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: a66c307a5d1ffdad9f9204aa8eccde9a0975d7344b6bfaa89ecd2268a85a9918
SHA3-384 hash: b5723085f1b8604ee7fbfcc7fe5c141358658d4f4cb0701b70fda423f712cc51357340611e8ff57f9a56a3e239b565e9
SHA1 hash: 8fa2a085216d52c7421ded2ab671f34179a1b177
MD5 hash: 0b9fc497c522779c80e27a5c129ce1d0
humanhash: montana-orange-victor-jig
File name:DHL_document11022020680908911.doc.exe
Download: download sample
Signature AgentTesla
File size:612'864 bytes
First seen:2021-11-01 01:16:49 UTC
Last seen:2021-11-01 03:10:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:n78H1hXePTloRFSRF/rctyRhC5JHNs8S3dX4/Nrake:UXoTSqR1cwUWrArake
TLSH T1DDD4BE66A3BC6F43D83463FC84213154ABB06A61BC97D74D8FC133DA8A36BB56D20587
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
183
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DHL_document11022020680908911.doc.exe
Verdict:
Malicious activity
Analysis date:
2021-11-01 01:20:24 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
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.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Found malware configuration
Initial sample is a PE file and has a suspicious name
Installs a global keyboard hook
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: Suspicious Double Extension
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 an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Taskun
Status:
Malicious
First seen:
2021-11-01 01:17:05 UTC
AV detection:
8 of 44 (18.18%)
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
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
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
7ec7c47de5927351c7035f8657a2dd91c42fd6ed6e4da309e34b87ef0b0ba785
MD5 hash:
171a2669225911b41301096cd9dcf19f
SHA1 hash:
dc25f1f69faec5174e489a0d1a18cf14cf7fd1b5
SH256 hash:
23d41d765831be4dcbb96be3d348c8a08c4dbc123ab0bc587eb943e8f7f04eef
MD5 hash:
18660d6b9ae5a8ea568137371674754a
SHA1 hash:
d937abd8b7ec0c66aaa858ba452c04ce3e6e47e5
SH256 hash:
e3218e33f8f550064736ecb81bc600ef1f2c84d2ed579c22c475e91b34bba73d
MD5 hash:
6a77d76b9b619b6c0d3c14fd0a6d8682
SHA1 hash:
823b8b54ebc0405e1a9f3010d2630b34adbe284b
SH256 hash:
a66c307a5d1ffdad9f9204aa8eccde9a0975d7344b6bfaa89ecd2268a85a9918
MD5 hash:
0b9fc497c522779c80e27a5c129ce1d0
SHA1 hash:
8fa2a085216d52c7421ded2ab671f34179a1b177
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 a66c307a5d1ffdad9f9204aa8eccde9a0975d7344b6bfaa89ecd2268a85a9918

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

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