MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b39cb05c58a4611094a2753578e094d0b08b6194fba47725bec03028b9f8b972. 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: 6


Intelligence 6 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b39cb05c58a4611094a2753578e094d0b08b6194fba47725bec03028b9f8b972
SHA3-384 hash: f75d552468c5b21cb9e09dee6521fd6eb82954fb1156ffc41778aa1f7b46b74522ee0162f9a49ca979701d403438ad97
SHA1 hash: 237fda7c8ca5386fe6766d0866cb2a88fedd6193
MD5 hash: 1df0e350c2138a0a30eee30b6e549350
humanhash: foxtrot-oxygen-seventeen-vermont
File name:Passport_doc.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:408'064 bytes
First seen:2020-06-11 05:51:55 UTC
Last seen:Never
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:TIiPdhsL6SWrc+GcmkPIFKNtGL38TPi8qplT2NL2:UOQovdvgFKNtGT0i8kl
Threatray 10'666 similar samples on MalwareBazaar
TLSH B794121876A4D751C87F6BF6517201118B7CED2AB423FB8A6EC071E96C2BB440352B7B
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mail.jbninfotech.com
Sending IP: 88.99.0.62
From: Abhimanyu Sethi <sabhimanyusethi@gmail.com>
Subject: Copies of passport and CV
Attachment: Passport_doc.rar (contains "Passport_doc.exe")

AgentTesla SMTP exfil server:
smtp.1and1.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
69
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/8874/
Detection(s):
SecuriteInfo.com.MSIL.GenKryptik.EMHL.24330.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2020-06-11 05:53:08 UTC
AV detection:
25 of 30 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=woolaxcyurqrbffcou2xryeu2cyiwymu7oshojn6yaycropyxfza._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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0c76dbf49b51ec12d4ab052ce8e5ccce2bd58e67161e184c6dbdfdeba3014f06
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2e5db38a7ef270540183c7d11faf67ae9dd614d6341dd74dc4124701d8c4b8b9
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846d2bcdab1a1342fdfcf0636d1ead7b9411d1212331ca95fb568f56ecb7842d
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9d21929837be7be38702aeec7f2ed51f23ecb142651fed5dd9d95eecd457a25e
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b6b0eb759fe2c52fa89fd4ae7d83c379c1caec28fb28e97e17db5178b3f6c1ef
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cc9cd3fab00a7ca68c26cbf9bfcf691aafd004232149c04d2d082a1fe06b9f32
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de7b76d63de4addc9c39bef5146445aa54c2005f3442addf8810379594ed8a06
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fad5d998c52c536d0ee9053d7f6a1d7dd2bd11d3cc91af90992cc08a70bc33eb
AgentTesla
+ 10'656 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger rezer0 spyware stealer trojan
Link:
https://tria.ge/reports/201109-4z68mgrpb2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
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
AgentTesla Payload
rezer0
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 e2b32174019603545429ca5f3dea52a577886de0a1763098ccaf6104ef2712d6

AgentTesla

Executable exe b39cb05c58a4611094a2753578e094d0b08b6194fba47725bec03028b9f8b972

(this sample)

  
Dropped by
MD5 80602f6b9651aa09e3d98d8bc38cface
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 e2b32174019603545429ca5f3dea52a577886de0a1763098ccaf6104ef2712d6
Cape
Cape
https://www.capesandbox.com/analysis/8874/

Comments