MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81420f42ee455db2a99c1f85b03fb213083e03c2f329f1919b9dc3044de89555. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81420f42ee455db2a99c1f85b03fb213083e03c2f329f1919b9dc3044de89555
SHA3-384 hash: 4865692341085330b75883f247c040c0ec5a6ad1a0fb8063de5aa9f0ca2fbe49af643234179e5a6a8a0c0ce8de30dc97
SHA1 hash: 36a3f96a0684b3a57c249337f80c4c9a59337324
MD5 hash: ffc9945db60016c79bb411e4c96242e5
humanhash: skylark-maine-fourteen-one
File name:PO#CR21-1178321............PDF.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:679'424 bytes
First seen:2021-11-10 04:09:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:mCRtdItD00RWltRw+CAP8spE1J21UZIhzHr0V:mCRtWC00n+lAP8rJsWQ
Threatray 12'566 similar samples on MalwareBazaar
TLSH T1A6E4E1303B2C4396C4D90F37A91587774BFE15AB3A359E09FB806EAE3A533C34685985
File icon (PE):PE icon
dhash icon f8d8d0f0c0d0c0c0 (11 x AveMariaRAT, 10 x AgentTesla, 9 x Formbook)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
105
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/204593/
Detection(s):
SecuriteInfo.com.Variant.Strictor.47290.796.18222.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cobra obfuscated packed strictor
Link:
https://www.filescan.io/uploads/618b4620a00afa9663a2958b/reports/d6e8582f-4e53-4b9d-8b54-0b0d72d6690a/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9c68cbf0-49ff-4a26-80c3-948aee257d60
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/886454
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 518926 Sample: PO#CR21-1178321............... Startdate: 10/11/2021 Architecture: WINDOWS Score: 100 27 Found malware configuration 2->27 29 Multi AV Scanner detection for dropped file 2->29 31 Multi AV Scanner detection for submitted file 2->31 33 9 other signatures 2->33 7 PO#CR21-1178321............PDF.exe 6 2->7         started        process3 file4 21 C:\Users\user\AppData\Roaming\SCsEqYuji.exe, PE32 7->21 dropped 23 C:\Users\...\SCsEqYuji.exe:Zone.Identifier, ASCII 7->23 dropped 25 C:\Users\user\AppData\Local\...\tmp6C58.tmp, XML 7->25 dropped 35 Uses schtasks.exe or at.exe to add and modify task schedules 7->35 37 Adds a directory exclusion to Windows Defender 7->37 11 powershell.exe 25 7->11         started        13 powershell.exe 24 7->13         started        15 schtasks.exe 7->15         started        signatures5 process6 process7 17 conhost.exe 11->17         started        19 conhost.exe 13->19         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/81420f42ee455db2a99c1f85b03fb213083e03c2f329f1919b9dc3044de89555/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-10 04:10:09 UTC
AV detection:
15 of 44 (34.09%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qfba6qxoivo3fkm4d6c3ap5scmed4a6c6mu7dem3txbqitpisvkq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
09f9071b686b6820fed8af5f6be019e9a0d4624e3c999f4e3ca0cdb32740cc41
AgentTesla
0e770b4b1dff63afb16c1ca24f74e45905ab4e9baa1cd7ec48dada2deb252d8f
AgentTesla
35f0363054ae6e982853cf704f9ad7161a3c054463a2fbc2a6582c55a6eb76a2
AgentTesla
515476905d43c54f0c4912d6c1c3aa88a103acc59198cba315c145d28aad22de
AgentTesla
676ef153270573032364c1e312a0619c99d2da980114e66cfb302ff07e480b17
AgentTesla
d6db1886657d4ec8e9779d26d1550df019f40c3960d2aa6b1cd01381a6d88af8
AgentTesla
de0f6d3156577dbace690119ed748be66c64e539402780878490839dd0b24234
AgentTesla
ebf827e50998dc2a8476b123b502efc589577ad8cd9f27dec82a19e50160f3c0
AgentTesla
fd2a7682f371ab740d8691e13d1ab27f3919414019afd1b6ddf935394c59ba60
AgentTesla
ffbad515588df376e86216b15b2a092570d1dc91116e787de8648060ef06895c
AgentTesla
+ 12'556 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/211110-erecsagcd9/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
37eb84e64aeaf27944bca595366f4530b506bca20fd671bb7706b8c41a042cbe
MD5 hash:
e4f7e558b1edfe75e3bbdd7e59bf5db8
SHA1 hash:
fa37f819066d87db442adc30ea4624a736fbc740
Link:
https://www.unpac.me/results/a4bf3bc0-43ab-4767-a8e3-da627d019a9e/
SH256 hash:
91655863c7906a8d20c7c782144f553c027843a72f2fdab2b1ccc80808083af0
MD5 hash:
b5044dd0e9c91b1a9185d491da7d07f2
SHA1 hash:
a9ff8129771d85f77b6a145f750c70e53f51125e
Link:
https://www.unpac.me/results/a4bf3bc0-43ab-4767-a8e3-da627d019a9e/
SH256 hash:
500cc974d2aa762ca6a07c3dc0be99c91bc35abae41311add58aefdf9dc6fc57
MD5 hash:
024a69e4caa53e376eb466338d126d1d
SHA1 hash:
821897749adc2a37450a846c1f28728fd2494c02
Link:
https://www.unpac.me/results/a4bf3bc0-43ab-4767-a8e3-da627d019a9e/
SH256 hash:
81420f42ee455db2a99c1f85b03fb213083e03c2f329f1919b9dc3044de89555
MD5 hash:
ffc9945db60016c79bb411e4c96242e5
SHA1 hash:
36a3f96a0684b3a57c249337f80c4c9a59337324
Link:
https://www.unpac.me/results/a4bf3bc0-43ab-4767-a8e3-da627d019a9e/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/81420f42ee45/report/overview.html
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/81420f42ee455db2a99c1f85b03fb213083e03c2f329f1919b9dc3044de89555

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: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.

Malspam

AgentTesla

Executable exe 81420f42ee455db2a99c1f85b03fb213083e03c2f329f1919b9dc3044de89555

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/204593/

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