MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a21af08ec456587b0e3fe9e1ba3c9e64e2058c09ec0e17b7ad690691bb4ca14. 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: 4a21af08ec456587b0e3fe9e1ba3c9e64e2058c09ec0e17b7ad690691bb4ca14
SHA3-384 hash: c02267c0e833243fcf3d53b79bf53b2005b7df3101ac05121f4ea35afb639bf04365c8853f272c03d3861b50635d704a
SHA1 hash: d834b0528a464bace1a9ca27453d23d1dbdec6bd
MD5 hash: 1a14e4d83979fef847fea0458650259c
humanhash: may-one-delta-ceiling
File name:CL00020Q0332565SCL.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'783'808 bytes
First seen:2020-05-14 17:31:48 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 49152:iC9UqjeST8HYFWPwraedvZmJBX83vw9VeJFopGvNZ:RKRHWZm70YyIGL
Threatray 10'564 similar samples on MalwareBazaar
TLSH 428523BC36AE1E67D0BD06F58D60224523F0E4A23D4EFAC99CD170E719E17C64B8A647
Reporter abuse_ch
Tags:AgentTesla CHL exe geo Santander


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: srv1.hostingdigital.es
Sending IP: 192.162.12.59
From: RemittanceAdvice@santander.cl
Subject: Advice from Banco Santander
Attachment: CL00020Q0332565SCL.GZ (contains "CL00020Q0332565SCL.exe")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
99
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-05-14 17:35:52 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
21 of 31 (67.74%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jiq26chmivsypmhd72pbxi6j4zhcawgat3aoc63222igsg5uzika._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0d5b124dc494933b725a7099f5d0ffa42f122b9896bd383791179a5f865a7b32
AgentTesla
157a44ec9e957fb3b5732e4e3daee44c36253f01b40c03083b8ef77f53b4770e
AgentTesla
23d9487f480403a4441c00198ae2b8598b5f293ceff6f6b3d97e2d82a438ce9a
AgentTesla
8a9bcb387cd155170986cd1938beb317ee1ee511bcb6175a6d292bd976cca15b
AgentTesla
abf941273866ba3ff5790c18f55e776554f75f846f1878b98c1e98ad25e94b9e
AgentTesla
b63a3d59a9a406dbbf194da0ad4838fa867081dbd02b5fb2a8ec29fee3247d48
AgentTesla
c0c639e1f923a3dd8e88f2ee1b6a397db9f62c5688f6e04181f43f8b950e8914
AgentTesla
d1863b802d34e0fce4629d1df6fecd8b7918cd43047e65ed61dc770816fe275d
AgentTesla
ea9ceeebdfc73d27d4838a11991fb44c7818ef0b2c9b09c37dd4dedb1657a898
AgentTesla
f7c1ca61fb56a5c3e608e58e5f92609758167e708085f6ebd863acf5c8348d92
AgentTesla
+ 10'554 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/201109-18r7pkflqj/
Behaviour
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 dfddf691b73ffa451dc622937e02d6d871be6e0d9ebe17669094f042198fe9ae

AgentTesla

Executable exe 4a21af08ec456587b0e3fe9e1ba3c9e64e2058c09ec0e17b7ad690691bb4ca14

(this sample)

  
Dropped by
MD5 256d7f3f0d155df9f81808f679b82a67
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 dfddf691b73ffa451dc622937e02d6d871be6e0d9ebe17669094f042198fe9ae

Comments