MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4237e2a449cd82e58728a1fbaa1fe942a2f8f757475fbc0262324294b4636ea2. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4237e2a449cd82e58728a1fbaa1fe942a2f8f757475fbc0262324294b4636ea2
SHA3-384 hash: 4a830da9aad4e5ce696bb148607357372bd51c97ab065b43549584529035884b6969347f303d5305e82810e67a29c0aa
SHA1 hash: cd715fc9f66e660f7e5d473a0b4cad2972a6022d
MD5 hash: fd3929d44d2bae2bee381c93da6afab5
humanhash: spaghetti-venus-helium-nitrogen
File name:AWB & Invoice.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:563'712 bytes
First seen:2020-07-28 13:45:49 UTC
Last seen:2020-07-28 15:02:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:AymKVrYs2wXB1RavxOdjqVL+6G4qT9ZSiLb+zyiaP:iKVrp2DxasGrF+Ra
Threatray 10'698 similar samples on MalwareBazaar
TLSH 9AC4F00461A15B1FD76B96B47027D0F06227E099EB61DE3B1E8FE09718E22F979C3523
Reporter abuse_ch
Tags:AgentTesla exe TNT


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: tnt.com
Sending IP: 209.58.149.87
From: Ritu Arora <ritu.arora@tnt.com>
Subject: TNT SHIPMENT
Attachment: AWB Invoice.pdf.gz (contains "AWB & Invoice.pdf.exe")

AgentTesla SMTP exfil server:
us2.smtp.mailhostbox.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
78
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/33724/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Siggen2.52692.25822.17396.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/400451
Signature
Antivirus / Scanner detection for submitted sample
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
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)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4237e2a449cd82e58728a1fbaa1fe942a2f8f757475fbc0262324294b4636ea2/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-28 13:47:06 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ii36fjcjzwbolbziuh52uh7jikrpr52xi5p3yatcgjbjjnddn2ra._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'688 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200728-mnd369rj2a/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of local email clients
Reads data files stored by FTP clients
Reads user/profile data of web browsers
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4237e2a449cd82e58728a1fbaa1fe942a2f8f757475fbc0262324294b4636ea2

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

gz d736f11309a33f0c955e471e591011bcad6000f15f23918edcdf4646ef481d15

AgentTesla

Executable exe 4237e2a449cd82e58728a1fbaa1fe942a2f8f757475fbc0262324294b4636ea2

(this sample)

  
Dropped by
MD5 45f5f8e30e82bea41abf6ff80b92e805
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/33724/
  
Dropped by
SHA256 d736f11309a33f0c955e471e591011bcad6000f15f23918edcdf4646ef481d15

Comments