MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4d604ac931839ec691dccc2474d80bf2f826693d4ce914a161a484288ebe20a. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4d604ac931839ec691dccc2474d80bf2f826693d4ce914a161a484288ebe20a
SHA3-384 hash: db92bf906df17348721bef35b4be2d5ac032903f9351a0ee040d3b7fabedac437b76489d2c332033beea4a555a74260c
SHA1 hash: 5e9dc5c0907fd3d4d3d3debc923b1715881da818
MD5 hash: 105cc34e0dcb56a0bb61374f2e6eaae6
humanhash: mars-freddie-network-mississippi
File name:RFQ.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:582'656 bytes
First seen:2020-07-16 06:32:45 UTC
Last seen:Never
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:J82f2k4zUINfGYEssqtqpBffymRolqQIn6ZzlpAbm5a:bCNrN4pVo+s
Threatray 11'028 similar samples on MalwareBazaar
TLSH 82C48CD83510719EC54F8D768A68DC30A6202C66F7FBD20663C36E9F7A3D697CB141A2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: lmcokw.com
Sending IP: 95.211.208.58
From: Erfan Dehghani <rsriniversani@lmcokw.com>
Reply-To: Info@lmcokw.com
Subject: RFQ - PIPE, PUMP AND VALVE FOR INSTALLATION OF MAB-SHUAIBA OIL PIER AND CATHODIC PROCTECTION FOR UNDERGROUND PINPING WORK.
Attachment: RFQ.rar (contains "RFQ.exe")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
75
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/26363/
Detection(s):
SecuriteInfo.com.CAP_HookExKeylogger.19222.9085.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Launching the process to change network settings
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a4d604ac931839ec691dccc2474d80bf2f826693d4ce914a161a484288ebe20a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-07-16 06:34:18 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=utlajletda46y2i5ztbeotmax4xyezut2thjcsqwdjeefchl4ifa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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+ 11'018 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger trojan stealer spyware family:agenttesla persistence
Link:
https://tria.ge/reports/200716-4p1rzxdc4s/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Modifies service
Adds Run key to start application
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.

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

rar 492bdc3161c7e9cefe697097f98f90185a28ec08f7a633a357c24a8f7c18c651

AgentTesla

Executable exe a4d604ac931839ec691dccc2474d80bf2f826693d4ce914a161a484288ebe20a

(this sample)

  
Dropped by
MD5 dac6d5e9bb84537494c6e23c9279d0d1
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/26363/
  
Dropped by
SHA256 492bdc3161c7e9cefe697097f98f90185a28ec08f7a633a357c24a8f7c18c651

Comments