MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5da6cf43b0cfa02ced366391cc828e105ab6d1c813a5ffc399f00b26ed5feb8d. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5da6cf43b0cfa02ced366391cc828e105ab6d1c813a5ffc399f00b26ed5feb8d
SHA3-384 hash: 6bf5f54ea5226212f85d043660e8d37bb7b27596fdfa9c5ed1f846050ed0f1cb31172714eb63aa93108c6a54bf4de580
SHA1 hash: d586757796e1199ef58dba3e7cdb0d2cfebda539
MD5 hash: bb9ad57e088b78f2e9b73e5019fcac4d
humanhash: mars-wolfram-magazine-mockingbird
File name:koiji9mnj.bat.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:498'176 bytes
First seen:2021-12-21 18:16:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:+XC4H1UjVM3Wtk2Wx9NQMefTAiobZxUPRXW+s8sQ1bzuSK3:loLWt/6/BKAio6RXWgsqSSK3
Threatray 13'577 similar samples on MalwareBazaar
TLSH T17DB4F1AC3197ABCED09513797778507843A2BC366017E2DCD99A36AB2873B407D33253
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
201
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
koiji9mnj.bat.exe
Verdict:
Suspicious activity
Analysis date:
2021-12-21 18:18:38 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/913923d0-30b3-4378-9620-a5031e6f335f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/215694/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
fareit obfuscated packed qrat
Link:
https://www.filescan.io/uploads/61c21a20ec6c6c14a9e81950/reports/e908258c-69f0-4e3f-b5d5-f3eecf7882dc/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7487ddff-cb6b-45b3-8fb2-c7bfca51e9c0
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/911134
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Moves itself to temp directory
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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)
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 / registry access)
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 543612 Sample: koiji9mnj.bat.exe Startdate: 21/12/2021 Architecture: WINDOWS Score: 100 41 Found malware configuration 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 Yara detected AgentTesla 2->45 47 6 other signatures 2->47 6 koiji9mnj.bat.exe 3 2->6         started        10 jNnIJrO.exe 3 2->10         started        12 jNnIJrO.exe 2 2->12         started        process3 file4 25 C:\Users\user\...\koiji9mnj.bat.exe.log, ASCII 6->25 dropped 49 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->49 51 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->51 53 Injects a PE file into a foreign processes 6->53 14 koiji9mnj.bat.exe 17 9 6->14         started        55 Multi AV Scanner detection for dropped file 10->55 19 jNnIJrO.exe 2 10->19         started        21 jNnIJrO.exe 10->21         started        23 jNnIJrO.exe 2 12->23         started        signatures5 process6 dnsIp7 31 api.telegram.org 149.154.167.220, 443, 49816, 49817 TELEGRAMRU United Kingdom 14->31 27 C:\Users\user\AppData\Roaming\...\jNnIJrO.exe, PE32 14->27 dropped 29 C:\Users\user\...\jNnIJrO.exe:Zone.Identifier, ASCII 14->29 dropped 33 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->33 35 Moves itself to temp directory 14->35 37 Tries to steal Mail credentials (via file / registry access) 14->37 39 4 other signatures 14->39 file8 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5da6cf43b0cfa02ced366391cc828e105ab6d1c813a5ffc399f00b26ed5feb8d/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-18 17:14:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
25 of 43 (58.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lwtm6q5qz6qcz3jwmoi4zauocbnlnuoicos77q4z6afsn3k75ogq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
23527ef08946f6646e206aafd5620b51abd9de45e8e68081cfce545e2572ed19
AgentTesla
5dcfc5e7aff62ecae779bc08d8e66634440a2dc74007b0186c6623fe7f1b1c41
AgentTesla
ba3548566c5eda9447bd910346549f92ecc5cd51f959f51cc7bc836a2ce49501
AgentTesla
c9e758114c89ff90ec7c8610c625ca2b715ff745d1e96163f22e8aae543948f9
AgentTesla
d194b99224979a3bfd29bb09bd91d52f7e231ac652545180c6dc69b4edd8d779
AgentTesla
d3cf782e69e0d99f2de9f87db3a757f015850565a865bb34fa077cdd45da07b7
AgentTesla
e20d6f8c4130be0491a8fe5069fc6aac30fb3d59eaa96dc8c67b6254609527cb
AgentTesla
eef0f2d45e33302f946fc1a12c7c6e4b4a99e7050c287902a5f77fd9f04f5418
AgentTesla
f970c65af4bb47d29d95d9c605cfaf2b3736949b4c6179dd4e4f0dd7ee561cee
AgentTesla
+ 13'567 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/211221-ww16safbaq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
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
Malware Config
C2 Extraction:
https://api.telegram.org/bot2107727636:AAGtenJYFQWUHBz27lev7d_3slnNyCuUhxc/sendDocument
Unpacked files
SH256 hash:
1cf122d0755153191c8712609212d0b25d00aa626c01023a0799a9ede5ee251d
MD5 hash:
c637d86d4338c37651225add6a23359a
SHA1 hash:
890ee9b9cdef1495701093bb2bfafb9680253e20
Link:
https://www.unpac.me/results/078568fc-abcc-4c85-84be-2fd4e1e9c14c/
SH256 hash:
f5351cf0d32d85c301d09fe225a4a4f38211cbb7c332e93218651f3b06a15208
MD5 hash:
813b953c9bcce168182188a55c26cb85
SHA1 hash:
203823916eb54d6bd4240cf7ebf6945c5ac9ae06
Link:
https://www.unpac.me/results/078568fc-abcc-4c85-84be-2fd4e1e9c14c/
SH256 hash:
9f5763966bacdc6de3944a6e06a49b05869c38f2e98b32cb93b483a480a6ffff
MD5 hash:
3418c620c4b9dd4533a88f1ba5ec3ff1
SHA1 hash:
12f6aaf1c90030c4063d42a27b2e7000a08b6e74
Link:
https://www.unpac.me/results/078568fc-abcc-4c85-84be-2fd4e1e9c14c/
SH256 hash:
5da6cf43b0cfa02ced366391cc828e105ab6d1c813a5ffc399f00b26ed5feb8d
MD5 hash:
bb9ad57e088b78f2e9b73e5019fcac4d
SHA1 hash:
d586757796e1199ef58dba3e7cdb0d2cfebda539
Link:
https://www.unpac.me/results/078568fc-abcc-4c85-84be-2fd4e1e9c14c/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/5da6cf43b0cfa02ced366391cc828e105ab6d1c813a5ffc399f00b26ed5feb8d

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/215694/

Comments