MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3a81ff29fab2a5f1c63bf3cdef8d233cd509e5edb5dd65da9c045e48abfe3efe. 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: 3a81ff29fab2a5f1c63bf3cdef8d233cd509e5edb5dd65da9c045e48abfe3efe
SHA3-384 hash: 9eef2bea644454436b6fa79c13d23c9f63a5099b5c2f513d0fbed9e3598e07ae701b705112d46f76c86362a5240db083
SHA1 hash: f0e0e867514ecfc5c4fbfa32dcd85329556e622a
MD5 hash: 684050f263358f7f292f6f4fe4825ca6
humanhash: kilo-sad-alaska-bulldog
File name:PO 210720.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:562'688 bytes
First seen:2020-07-21 06:48:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:KqHipMdycB+WIytHrWv+LCwOZ/FNXLNwz+:VCpMdF0GWaCwiVLE
Threatray 10'627 similar samples on MalwareBazaar
TLSH 0EC48C10D7B856CAE3BA57BCE870011087B4B51AA7EBEB591B91F0ED1822351CB13F67
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: gmail.com
Sending IP: 176.123.6.152
From: Purchase-Rolf Mayer <anirban.chowdhury.ushamartin@gmail.com>
Reply-To: Purchase-Rolf Mayerr <anirban.chowdhury.ushamartin@gmail.com>
Subject: PO - 21-07-2020/Urgent
Attachment: PO 210720.rar (contains "PO 210720.exe")

AgentTesla SMTP exfil server:
smtp.auroraallimentos-br.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
72
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/29746/
Detection(s):
SecuriteInfo.com.generic.ml.18763.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun with Startup directory
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3a81ff29fab2a5f1c63bf3cdef8d233cd509e5edb5dd65da9c045e48abfe3efe/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-21 06:50:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hka76kp2wks7drr36pg67djdhtkqtzpnwxowlwu4arperk76h37a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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+ 10'617 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/200721-r7c3ejep7n/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Suspicious use of SetThreadContext
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Reads data files stored by FTP clients
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3a81ff29fab2a5f1c63bf3cdef8d233cd509e5edb5dd65da9c045e48abfe3efe

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 8c93aca8dd4d2f30b8c422a0966e8cde8c045f00705d8536d6b5d0e109142738

AgentTesla

Executable exe 3a81ff29fab2a5f1c63bf3cdef8d233cd509e5edb5dd65da9c045e48abfe3efe

(this sample)

  
Dropped by
MD5 c5723943b3802ee15cd07190a5be0c91
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/29746/
  
Dropped by
SHA256 8c93aca8dd4d2f30b8c422a0966e8cde8c045f00705d8536d6b5d0e109142738

Comments