MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c6f41cff35e8e1e72217e9f5c8d32a6fff30bd878b854acf357f61c02b6f603e. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c6f41cff35e8e1e72217e9f5c8d32a6fff30bd878b854acf357f61c02b6f603e
SHA3-384 hash: 6e72d07b931bc388f0716bf74891627efe1ceef10e568dc17ecd86d2c595c602376e4cb7e44a6938437e02252936bd29
SHA1 hash: 4fc7777780d80f2d9862cadf923ff00468803979
MD5 hash: 3542d8820f1dc02b6374c205f3c26fbc
humanhash: artist-lemon-low-washington
File name:PO-13397.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:681'984 bytes
First seen:2020-08-11 11:19:17 UTC
Last seen:2020-08-11 12:14:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:haCY8CpF2uUPCxLfaDEZhoD1JOtIWsGIvsO5zxuEQUNbeu+f8fV0U1:1KfCCxjaDEZho5JOtIWsGCsO5zRNidfI
Threatray 11'421 similar samples on MalwareBazaar
TLSH 14E4F13276A5CC00C3BA2A3ACACF811407BABD063A73C6167BAB336D55127775F155CA
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: ca.casterweb.live
Sending IP: 45.95.171.3
From: Airul Zulkifli <airul@leongroup.com.my>
Reply-To: Airul Zulkifli <info@casterweb.live>
Subject: PO-13397
Attachment: PO-13397.rar (contains "PO-13397.exe")

AgentTesla SMTP exfil server:
smtp.imp-powers.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
68
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/43284/
Detection(s):
SecuriteInfo.com.Fareit-FYE3542D8820F1D.21971.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/418576
Signature
.NET source code contains potential unpacker
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 261580 Sample: PO-13397.exe Startdate: 11/08/2020 Architecture: WINDOWS Score: 100 35 Found malware configuration 2->35 37 Sigma detected: Scheduled temp file as task from temp location 2->37 39 Yara detected AgentTesla 2->39 41 6 other signatures 2->41 7 PO-13397.exe 7 2->7         started        process3 file4 21 C:\Users\user\AppData\...\HEcXnKukdNEeW.exe, PE32 7->21 dropped 23 C:\...\HEcXnKukdNEeW.exe:Zone.Identifier, ASCII 7->23 dropped 25 C:\Users\user\AppData\Local\...\tmp77BF.tmp, XML 7->25 dropped 27 C:\Users\user\AppData\...\PO-13397.exe.log, ASCII 7->27 dropped 43 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->43 45 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->45 47 Injects a PE file into a foreign processes 7->47 11 PO-13397.exe 4 7->11         started        15 schtasks.exe 1 7->15         started        17 PO-13397.exe 7->17         started        signatures5 process6 dnsIp7 29 smtp.imp-powers.com 11->29 31 smtp.mailhostbox.com 162.222.225.59, 49747, 587 PUBLIC-DOMAIN-REGISTRYUS United States 11->31 33 192.168.2.1 unknown unknown 11->33 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->49 51 Tries to steal Mail credentials (via file access) 11->51 53 Tries to harvest and steal ftp login credentials 11->53 55 Tries to harvest and steal browser information (history, passwords, etc) 11->55 19 conhost.exe 15->19         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c6f41cff35e8e1e72217e9f5c8d32a6fff30bd878b854acf357f61c02b6f603e/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-11 11:21:09 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=y32bz7zv5dq6oiqx5h24ruzkn77tbpmhrocuvtzvp5q4ak3pma7a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0e9f18832b1738b5db30853fc3732e4a083722f7d99db5e62c8dc3d42e5cae70
AgentTesla
19a180b5e3696a27292810125957efca24a09e7743d951e5386bd69daaca8dfe
AgentTesla
20000a9d0078fa18b60d9ad52d36b4f5dfa77d2f74866e8793ee0085ab0c9964
AgentTesla
581213d231ae5f6bc23058aaebea8653155500aa5625a4fc7f8b8453c57003bd
AgentTesla
722521ac19cd30a318eb191975eecadb389fe26c681d76f1c5da92dc8fabac4f
AgentTesla
d3204c9776cd57ecf3f3c44d00b8ee6aede75a9f40699ac02091522162cf46a0
AgentTesla
daccbb51605d68967e4b1d5ec147fc9a2d8e29d0970cc518e579a83397b1082b
AgentTesla
ef7a8f1478e57d2dedf96a00501903b7b5a571680286502f2f329ed2c8728b2b
AgentTesla
f1c317dfe16f1857fe9df96ce966a07d3ca86680c39ae8e892277b78995cceb3
AgentTesla
f7f3acea6b67e6b5db697777ab0bd656febfe648e4d79519010ba805e329fdc0
AgentTesla
+ 11'411 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200811-ake3gglgse/
Behaviour
Creates scheduled task(s)
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
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Farheyt
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/c6f41cff35e8e1e72217e9f5c8d32a6fff30bd878b854acf357f61c02b6f603e

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 bc610bad9ffe2f06765fbb35a863a3e39aff70b6354bbf9861f5e54645128e2a

AgentTesla

Executable exe c6f41cff35e8e1e72217e9f5c8d32a6fff30bd878b854acf357f61c02b6f603e

(this sample)

  
Dropped by
MD5 2ab7d348d0ceb12d5a222309a6a05415
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 bc610bad9ffe2f06765fbb35a863a3e39aff70b6354bbf9861f5e54645128e2a
Cape
Cape
https://www.capesandbox.com/analysis/43284/

Comments