MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b74b71499c1f837020761b5b707322c697d83b52ccb4c96b37575e193da0cf23. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b74b71499c1f837020761b5b707322c697d83b52ccb4c96b37575e193da0cf23
SHA3-384 hash: 1c78f630bcbc27e5092ef9b831140827024f99d7c90dd34c4e02e2ddd97c639f1e11ac52c24cfd3ba9236ab8864493c1
SHA1 hash: 4098765947fd17278c11b0dc21b1d4bcb65c4562
MD5 hash: ccac9940ab86b6ebc03cd036e0f00ea2
humanhash: purple-washington-yankee-green
File name:INVOICE CHANGE-PDF.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:628'736 bytes
First seen:2021-02-24 07:02:14 UTC
Last seen:2021-02-24 09:04:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:UxQ/cq8qthowvM3TSpTmPGJul0Z+vp7tYdXRSG:Dh+TSp9k0ZW+
Threatray 2'825 similar samples on MalwareBazaar
TLSH B1D48D6432885B5EF83EFB3A5515240FA3F5BA47C719CA87BD8940CF5C22E84C796B12
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: server1.limecreative.gr
Sending IP: 46.4.56.202
From: ANDREI Mohammad <export-traderston@mail.ru>
Reply-To: ANDREI Mohammad <export-traderston@mail.ru>
Subject: Order Product Inquiry
Attachment: INVOICE CHANGE-PDF.IMG (contains "INVOICE CHANGE-PDF.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
103
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INVOICE CHANGE-PDF.exe
Verdict:
Suspicious activity
Analysis date:
2021-02-24 07:45:08 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/155b6413-55a4-4b93-ad3a-047fe9e6bd1b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/118853/
Detection(s):
SecuriteInfo.com.TR.AD.AgentTesla.upcyh.20264.1609.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
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
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/616377
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Moves itself to temp directory
Multi AV Scanner detection for dropped file
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)
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 AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 357198 Sample: INVOICE CHANGE-PDF.exe Startdate: 24/02/2021 Architecture: WINDOWS Score: 100 43 Found malware configuration 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 Yara detected AgentTesla 2->47 49 9 other signatures 2->49 6 INVOICE CHANGE-PDF.exe 3 2->6         started        9 YYtJku.exe 3 2->9         started        12 YYtJku.exe 2 2->12         started        process3 file4 25 C:\Users\user\...\INVOICE CHANGE-PDF.exe.log, ASCII 6->25 dropped 14 INVOICE CHANGE-PDF.exe 2 5 6->14         started        19 INVOICE CHANGE-PDF.exe 6->19         started        51 Multi AV Scanner detection for dropped file 9->51 53 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 9->53 55 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 9->55 21 YYtJku.exe 2 9->21         started        23 YYtJku.exe 9->23         started        signatures5 process6 dnsIp7 31 sky-qrp.com 66.70.204.222, 49702, 587 OVHFR Canada 14->31 33 mail.sky-qrp.com 14->33 27 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 14->27 dropped 29 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 14->29 dropped 35 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->35 37 Moves itself to temp directory 14->37 39 Tries to steal Mail credentials (via file access) 14->39 41 3 other signatures 14->41 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b74b71499c1f837020761b5b707322c697d83b52ccb4c96b37575e193da0cf23/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-02-24 00:39:03 UTC
AV detection:
7 of 47 (14.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w5fxcsm4d6bxaidwdnnxa4zcy2l5qo2szs2ms2zxk5pbspnaz4rq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0b277825df78139d46171f324c582866a81252fdaec3c8912fee41fb6f6172e2
AgentTesla
139e0682e4985353d6d73c2c0c8a0982a06a6f8758edb5b7f949282b5cbbd63a
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20930a912e8c5fc24f604f9605a234e5c2b887d1c1351c1c03cebc199a88e089
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27645f1d148b659a43b23aff406fd0a354c0f4c5ad89eadc475cc5b58244c83b
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45fde804068d4fdd834fbabc35029ee0d8e427b7e5e32b4fd62cd17fee36b8de
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6ba09bf0b6f9ed13f6600679a0c81cc79dc1461213798b606178f3815078aedd
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903de95a30d55eaf9ecb49a0a310df96c215b51b25b3d3e8628adae14a94e7f0
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9f804fc3753da4dfcfd24ff6b1962817f93ad1d281bd86742b8660396d2ebf54
AgentTesla
a12f642139a7cfe0891e40b83400cae049a06c959f742700d47f096ccaa32736
AgentTesla
b08161f518814ca5bb0fe0e4e7b0031b422342f4bfac77d817d4b727437c719d
AgentTesla
+ 2'815 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210224-sbjsk9s57a/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
e624003658c4f8b349f567c82229fd15d1e63d3d20fe6f7b4388403038cd2a44
MD5 hash:
b6ce7c1d81b9271eab825ea63de154c3
SHA1 hash:
0e7b89555314f8908c1098b652c9bf50e5ecc27b
Link:
https://www.unpac.me/results/ac6545ef-6c03-4887-becf-d5cbe79879c4/
SH256 hash:
b74b71499c1f837020761b5b707322c697d83b52ccb4c96b37575e193da0cf23
MD5 hash:
ccac9940ab86b6ebc03cd036e0f00ea2
SHA1 hash:
4098765947fd17278c11b0dc21b1d4bcb65c4562
Link:
https://www.unpac.me/results/ac6545ef-6c03-4887-becf-d5cbe79879c4/
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
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:win_agent_tesla_v1
Create hunting rule
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

img bec152f96d088f4e9c4f95cec844ca362bd05f78e3e56b156cd0c6848f47c0bb

AgentTesla

Executable exe b74b71499c1f837020761b5b707322c697d83b52ccb4c96b37575e193da0cf23

(this sample)

  
Dropped by
MD5 078958cfd19503b3aaa3be3414c348a0
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 bec152f96d088f4e9c4f95cec844ca362bd05f78e3e56b156cd0c6848f47c0bb
Cape
Cape
https://www.capesandbox.com/analysis/118853/

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