MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a2c1f3c1df5c34f1c99c8f7cc8b18fae2c71189e6e383face3ff7fa31224f52. 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: 5


Intelligence 5 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a2c1f3c1df5c34f1c99c8f7cc8b18fae2c71189e6e383face3ff7fa31224f52
SHA3-384 hash: ff6bddc4848438620d1dee75369ee8ad515d3b545a4076a73082519ce4ee9c249107c814ce6db3e2e082d0c1d94d5c6d
SHA1 hash: 0e846cf62a46c5e90c0d4bd62214b76c068196e1
MD5 hash: 2d518011d53c1cbb00a23a53e259aa08
humanhash: carolina-carbon-september-west
File name:opo.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:541'184 bytes
First seen:2020-05-06 19:10:37 UTC
Last seen:2020-05-06 20:20:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:wfE+bree/WGgry82XCOz4+qMEOkd+BsbG+OXug48AqUTDizB8Qza3yQ6p/dsV:wXeeeGgyoG+6uglUfitcyQOO
Threatray 10'561 similar samples on MalwareBazaar
TLSH 19B4CF9D722072EFC867D472CEA82C64EB5064BB831B4217D46745EDEE4D897CF290B2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: swann-studio.com
Sending IP: 103.99.1.174
From: info<info@swann-studio.com>
Subject: NEW PURCHASE ORDER
Attachment: NEW PO.zip (contains "opo.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
89
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Mal.Generic-S.8709.12208.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-05-06 18:49:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
27 of 31 (87.10%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jiwb6pa56xbu6hezzd34zcyy7lrmoemj43ryh6woh737umjcj5ja._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
01623a798b7efb749c3409651a85050b58327c7dbe59740f79dac9b78ae24c9b
AgentTesla
3168af462696c8edf2bb2ab1537782ca60135573d977c6d3264ca2069871d9b5
AgentTesla
37f3611503d3e8828f5acc568dc065e4fadc60558d1812d3473140d21146c0b4
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923d6f2e83a74acdd4e501f42f737b720ab266e1ed7312994bd99e259bd15464
AgentTesla
a550ba5d41e52b9e136cafbfcdfe92148a0111a0e75a5ec3073ddbc0d965de55
AgentTesla
dc22c2145431a6ecc75ef2f7271120d8e102cef7faeac96d1d1d6ffb9b680ac4
AgentTesla
dff01b9f8946ed3792fe4e32ae3f95834c892f16ca219dc99d78fd15064f82a2
AgentTesla
eba71d34064a16351e9b19b46abdf4240ff2ce39d709a7d6c636c06327b561d2
AgentTesla
f35fa2a6281a2a24016729d315083a638edf176a890a605dba2ac134e1733bb3
AgentTesla
f6cbd42dd07aa22dae1ad0617e9db28998f73d8fa1c528ded46ec284f05cad12
AgentTesla
+ 10'551 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla coreentity evasion keylogger persistence rezer0 spyware stealer trojan
Link:
https://tria.ge/reports/201109-g9ag1ejbxe/
Behaviour
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Modifies service
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Disables Task Manager via registry modification
Drops file in Drivers directory
AgentTesla Payload
rezer0
ServiceHost packer
AgentTesla
CoreEntity .NET Packer
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

File information

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

73c28351e63a7ac017e4012ec2acf570

AgentTesla

Executable exe 4a2c1f3c1df5c34f1c99c8f7cc8b18fae2c71189e6e383face3ff7fa31224f52

(this sample)

  
Dropped by
MD5 73c28351e63a7ac017e4012ec2acf570
  
Delivery method
Distributed via e-mail attachment

Comments