MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b61fd6fa3079321e5231c3bdea1d4894b2de3fb8a8e38c2cb2c3d4754a7da86d. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments

SHA256 hash: b61fd6fa3079321e5231c3bdea1d4894b2de3fb8a8e38c2cb2c3d4754a7da86d
SHA3-384 hash: d0763edab47781cc933c638d2ed87b5e7b7bc29b6a2a8468cac66d40a796694937738dbf8ecc0368ffc89a98b3e8187b
SHA1 hash: 70612861f59ef4cab717a2e5a2ad34b783b4e218
MD5 hash: 5f2dc6138b0d62cb5bba335dac8aed3e
humanhash: timing-early-ack-carpet
File name:DOH0003675550.pdf.exe
Download: download sample
Signature AgentTesla
File size:803'328 bytes
First seen:2020-11-18 12:17:12 UTC
Last seen:2020-11-18 15:44:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 5113dec31b8616dbad783836e7188783 (11 x AgentTesla, 2 x HawkEye, 2 x Loki)
ssdeep 12288:Wl1aMljBMKnw6WJoGPb5FUoRAVyImHlawuCWv9/eTUFD:AJCKxWfPNFwyIUlawDWv92A
Threatray 3'040 similar samples on MalwareBazaar
TLSH 38059E23F2A15873C12316789CCB5BB8AD2EBED0291B79876BF41D48DF3D2817816197
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: xwx0.319.suaon.ml
Sending IP: 139.59.250.122
From: Ali Al Faqir <info@319.suaon.ml>
Subject: ****PAYMENT REMINDER****
Attachment: DOH0003675550.pdf.cab (contains "DOH0003675550.pdf.exe")

AgentTesla SMTP exfil server:
smtp.fnsst.com:587

Intelligence


File Origin
# of uploads :
2
# of downloads :
98
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Using the Windows Management Instrumentation requests
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.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Maps a DLL or memory area into another process
May check the online IP address of the machine
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)
Sigma detected: Suspicious Double Extension
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)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.LokiBot
Status:
Malicious
First seen:
2020-11-18 11:30:47 UTC
File Type:
PE (Exe)
Extracted files:
47
AV detection:
27 of 28 (96.43%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan upx
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Reads data files stored by FTP clients
UPX packed file
AgentTesla
Unpacked files
SH256 hash:
72f1e50c292f703c77595c8179daffca3a04fe86a2430cc153301b9df2d7dd7e
MD5 hash:
8436d41c0f460a98ca3c4052f3830ca3
SHA1 hash:
9c6058e76693474b5457c3b6fbcdf7128540e0bd
SH256 hash:
86b2e61d0b0d22a1440ac4b22ccb9d078da56cd06ed212e3a483386375a02f54
MD5 hash:
4c4f4b2b0055c330e8c14b3093d79e22
SHA1 hash:
ae01f1800e55fc829b52968928b280a9a560df35
SH256 hash:
b61fd6fa3079321e5231c3bdea1d4894b2de3fb8a8e38c2cb2c3d4754a7da86d
MD5 hash:
5f2dc6138b0d62cb5bba335dac8aed3e
SHA1 hash:
70612861f59ef4cab717a2e5a2ad34b783b4e218
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 b61fd6fa3079321e5231c3bdea1d4894b2de3fb8a8e38c2cb2c3d4754a7da86d

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments