MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99a36c8033c93c1f5f30bbc35a7a49521028f8f6226c6875413fda736f83eb59. 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: 99a36c8033c93c1f5f30bbc35a7a49521028f8f6226c6875413fda736f83eb59
SHA3-384 hash: 813536940b9a08753de952726beb385cb12abc921a7df0f72565ccfe6a4dc6a5b7659d148fc4ecc4d71a0b914be7b9b0
SHA1 hash: dfeb110b54556f34cef134a2fea34af25ed3a8fb
MD5 hash: 3e66fe9eef5423cdedb7d3ed2c74e9cb
humanhash: avocado-connecticut-ink-michigan
File name:Swift Copy.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:514'048 bytes
First seen:2020-05-11 14:55:49 UTC
Last seen:2020-05-11 16:11:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:wquwY5kID6rjLctKBC6/4KXOVSKMnF8QgDA:LuwY5H6rctKBCkFO+nF8LD
Threatray 10'655 similar samples on MalwareBazaar
TLSH 0DB4CE4023BD6B76E4799BF548A0A061C7B6B52775B8D36E4CC660CA0AE2F80CD51F37
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: martinslog.com
Sending IP: 185.222.58.99
From: Jéssica Sousa <jessica.sousa@martinslog.com>
Subject: FW: SYNERGY MARINE (M) SDN BHD, RFQ : SYER/RFQ/SYER/2020/2 / Our Ref: JTQ/2061 rRev. 1/ Invoice No. 1030.20
Attachment: Swift Copy.gz (contains "Swift Copy.exe")

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

Intelligence

File Origin
# of uploads :
2
# of downloads :
89
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.PWS.Siggen2.48635.6198.9520.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-05-11 14:08:00 UTC
AV detection:
26 of 31 (83.87%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tgrwzabtze6b6xzqxpbvu6sjkiicr6hwejwgq5kbh7nhg34d5nmq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
2acce03be9204acbcc6fc59fa5bebc3720d91a9d7daa122c0ea086c4727fafce
AgentTesla
58933d7bb0147da562d240bc3c9974ecaa552f35495a773345e1e7d158f39588
AgentTesla
58fa191f38b25cab67921a0f3c0aba75e5254ca139733df9dca6eec26fae1377
AgentTesla
7a55018c2903edf26bdfbbd5df47c352197170b75a04af058a35d2332d9e6b50
AgentTesla
9fed5314906b5873cd970313215aeb2714819bb965dc4bb7648154f1dddb6680
AgentTesla
b020ed473e1a965d4de31c00fed475e683f808d9665b207bb41cfdb77f53bcfe
AgentTesla
b9f1a9cdb6f068f9222b8cd906ed162d74be5662bb9dbad5540d8cc51d1a4e6a
AgentTesla
bbb3afd846cc51e61380effeaceabc21e15c8b4ccdab6d821697191605a00c60
AgentTesla
db54bb9d7b9d9bba3cf4945c6eb5f637f4726f5009d26e14857ff303abd16e7a
AgentTesla
f7216d025821af6be807018f12db7c5a5bd3cd21ef0176b02c6cbe0f05ac4cf7
AgentTesla
+ 10'645 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla coreentity keylogger persistence rezer0 spyware stealer trojan
Link:
https://tria.ge/reports/201109-34z79wg1la/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
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
AgentTesla Payload
rezer0
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
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

gz 8d1ff9b06199f98c695fc1b469cc3663342bdaee05c3b4e50b5fcc20526988c2

AgentTesla

Executable exe 99a36c8033c93c1f5f30bbc35a7a49521028f8f6226c6875413fda736f83eb59

(this sample)

  
Dropped by
MD5 9610f6c4b02f2f6a0293e2f775dc4204
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 8d1ff9b06199f98c695fc1b469cc3663342bdaee05c3b4e50b5fcc20526988c2

Comments