MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28b8c820fe2f8e71d4b5ef4ef148648621285a0fbe98a59f88c9fc4912c89808. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments

SHA256 hash: 28b8c820fe2f8e71d4b5ef4ef148648621285a0fbe98a59f88c9fc4912c89808
SHA3-384 hash: 61682f1b2f016eda6d8ea682b55278ce0ee05d64932ee3032a91f2cf413a547abbbdb7338ca3b29933df9e0dc3c6e0eb
SHA1 hash: 558579bfc84238542fe67f7cd93635a9d315bddd
MD5 hash: ae6790941bad82cba522a3a44fe550e3
humanhash: green-nine-equal-sad
File name:AWB # 2205280630.jpg.exe
Download: download sample
Signature AgentTesla
File size:924'160 bytes
First seen:2021-03-10 08:14:46 UTC
Last seen:2021-03-11 03:20:41 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:lDyzPkOE100WWd5FYMR/kfl0M1HdUC9U/gi1RBAmTaeKHcGxTw:Cck0PbkN9dUCCh1bAsvGcGxTw
Threatray 16 similar samples on MalwareBazaar
TLSH FC158C01FE4B6682D0BBCB78C531051793E8AD178960DA183DAE785C3937AC1DA1EFD6
Reporter GovCERT_CH
Tags:AgentTesla

Intelligence


File Origin
# of uploads :
6
# of downloads :
108
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
AWB # 2205280630.jpg.exe
Verdict:
Suspicious activity
Analysis date:
2021-03-10 08:20:24 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
Sending a custom TCP request
Sending a UDP request
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 very large array initializations
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
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 (e.g. based on Emerging Threat rules)
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 steal Mail credentials (via file access)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Gathering data
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-03-09 22:07:44 UTC
AV detection:
12 of 47 (25.53%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
f9d949d2f56c449c5d346bb93ed04d38426f563b022dd179ae330dab46682c3b
MD5 hash:
871e23d748ba756eaab5777708f250f8
SHA1 hash:
c9816d4ab38541aaab9aa3eab7cb4898d0b72e4a
SH256 hash:
28b8c820fe2f8e71d4b5ef4ef148648621285a0fbe98a59f88c9fc4912c89808
MD5 hash:
ae6790941bad82cba522a3a44fe550e3
SHA1 hash:
558579bfc84238542fe67f7cd93635a9d315bddd
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:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
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 28b8c820fe2f8e71d4b5ef4ef148648621285a0fbe98a59f88c9fc4912c89808

(this sample)

  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment

Comments