MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 42af6a36e4b258c564fe1b8a495dda8e269e2c3ad4a4850bf30ec3b22a095c5f. 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: 42af6a36e4b258c564fe1b8a495dda8e269e2c3ad4a4850bf30ec3b22a095c5f
SHA3-384 hash: 382b421d844449db39d5eed0f2c94dd359bd20ee1023f15085f363ddcb78fdaea3a55f81b316bafd9148de8a4259ac67
SHA1 hash: 60ca0da86ec5b2fb3236f1906a8d5a0513fbfb59
MD5 hash: 3c29cde1d757b9a8d0cbed03feb6163c
humanhash: lion-football-friend-paris
File name:RFQ-000083832.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:617'472 bytes
First seen:2020-05-05 09:15:16 UTC
Last seen:2020-05-05 18:42:21 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:jKNKexxfLxheZSPhKBpbc8BZVLvQ8tgleYmOU9wUxW9evqtz0:j6KsfBPmb08D
Threatray 10'758 similar samples on MalwareBazaar
TLSH 69D47C9D722072EFC867D472DEA81C68FA5074BB931F4213942365EEA94D897CF244F2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: protonmail.com
Sending IP: 103.99.1.158
From: Crystal Tsui<burt.manager@protonmail.com>
Subject: RE:RFQ.OTES URGENT REMARKS
Attachment: RFQ-000083832.zip (contains "RFQ-000083832.exe")

AgentTesla SMTP exfil server:
mail.pptoursperu.com:587

Intelligence

File Origin
# of uploads :
3
# of downloads :
96
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-05-05 02:27:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
27 of 31 (87.10%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ikxwunxewjmmkzh6dofesxo2rytj4lb22ssikc7tb3b3ekqjlrpq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0eb506623215bfd28e3f1b9f7f34b0fc254b0a2fe8a91f5cd0a62f26bd739169
AgentTesla
1e836e05ce56e20f0d2cc683765f32896d038cf38913c48515db3eae6b75896f
AgentTesla
2b969d8cdb8ebab56e42e08200126ecf287e3ce31245f7fb8563245cc53615de
AgentTesla
2ed3c334493409927240f012d70190ef7feca44e27416cede763011ac187c4ef
AgentTesla
798fb244e7a14d63cadd3eacb43f1ea453999e3a8aecc19c369a95b4c50698c9
AgentTesla
9fb0d4a6cb16d10fc8c584647a21530ec375abf85b5a48d7d7578ebe6dc36f27
AgentTesla
bd5e8953da5dd6dff83154edb1c7229ca6c6f97be74ca1a0f6d25f876b424c13
AgentTesla
dccf76439fbd7e0afbaf8b56edda49b8a842c4b9447a9ebcf71874a622abe2c8
AgentTesla
ee27c2368e5bc75911a06fb62d641d59d30bd85a45407517e174e2970725b42f
AgentTesla
f982ec93d003591286335c98074fdbe2054d603de5211af961c670f50ac3437d
AgentTesla
+ 10'748 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla evasion keylogger persistence rezer0 spyware stealer trojan
Link:
https://tria.ge/reports/201109-ks6q4r6npe/
Behaviour
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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
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.

Malspam

AgentTesla

zip 55d13bc0bf04dc61568e4f51c854f903bcbc04a5f330eb348b1afe66548a3e05

AgentTesla

Executable exe 42af6a36e4b258c564fe1b8a495dda8e269e2c3ad4a4850bf30ec3b22a095c5f

(this sample)

  
Dropped by
MD5 b479fc7c5c2acfacca62669bb871a92a
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 55d13bc0bf04dc61568e4f51c854f903bcbc04a5f330eb348b1afe66548a3e05

Comments