MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4bc79cf89abc4888211b69dd7c9ed48b84d266bfd0f4853679e21e20462f5de. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4bc79cf89abc4888211b69dd7c9ed48b84d266bfd0f4853679e21e20462f5de
SHA3-384 hash: c9427411061c2c8a6cd0edd1e55313a6acd8d28354dd527e69f0f143adaac0f5759cb809c0547d319f3902446599ac46
SHA1 hash: a153b5b2cfa6c6f3a07f634db77cec3ddab274ca
MD5 hash: 17cc8690b478ec619ab36532c3f4fb07
humanhash: saturn-alaska-fruit-lemon
File name:Offer.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:631'296 bytes
First seen:2020-05-11 15:15:46 UTC
Last seen:2020-05-11 16:11:25 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:taoHWoHumf7sATglyC1KVlI1o/j/38cNW66u+IBAsY9F9r:tUxokwlIC/jkcjG99r
Threatray 10'729 similar samples on MalwareBazaar
TLSH 09D4D01817699F37E7CD52B9E0914158EBFBC0B78A0AE74B8D422AE60E0F3D1A5531C7
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: favoritkade.rs
Sending IP: 212.114.52.149
From: Biljana Misic Pavlovic - FAVORIT SABAC <favorit@favoritkade.rs>
Reply-To: Biljana Misic Pavlovic - FAVORIT SABAC <favorit@favoritkade.rs>
Subject: OFFER 11.05.2020
Attachment: Offer.zip (contains "Offer.exe")

AgentTesla SMTP exfil server:
mail.doris.com.tr:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
92
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.LuheFihaA.10164.11163.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-05-11 15:37:17 UTC
AV detection:
32 of 48 (66.67%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=us6htt4jvpciraqrw2o5pspnjc4e2jtl7uhuqu3htyq6ebdc6xpa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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b0f74b32dcc51aa7b52b6140adad4212c6fd63cfe1414a8fa7ded9bf12a8e001
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e236fb0d54c900d779acdc213408a6b9ca6519eca8bca6310e3b9fbe6db0b964
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ee7842c5dd491f8f79e898854c19a2bdfe06be1bffeaeb4011ae6449b5a43362
AgentTesla
+ 10'719 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/201109-my12q3lqfj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies service
Suspicious use of SetThreadContext
Adds Run key to start application
Maps connected drives based on registry
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
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

zip a0761a6126b9caa0493bd89d77697a3ef3019781ee083122eff828335cef47d0

AgentTesla

Executable exe a4bc79cf89abc4888211b69dd7c9ed48b84d266bfd0f4853679e21e20462f5de

(this sample)

  
Dropped by
MD5 98ebf7a4d6b79546d7560e3d400a8487
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 a0761a6126b9caa0493bd89d77697a3ef3019781ee083122eff828335cef47d0

Comments