MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f66c387a6b5f040157057752d613e42fe380ebd205cb6aaf3be83d4cc01bc19c. 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: 16


Intelligence 16 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f66c387a6b5f040157057752d613e42fe380ebd205cb6aaf3be83d4cc01bc19c
SHA3-384 hash: d265a2e619a839b8c1dcffa3c2712e56c08e496a66a47ab594c514af00d86775334d55206c1af777ed1cd2b9aa767035
SHA1 hash: 5c5384eb5413dc79faac4581888928f4aaa0cb8f
MD5 hash: cac1aafc4de8d1702671cbfd61c4363b
humanhash: utah-lima-fruit-ceiling
File name:cac1aafc4de8d1702671cbfd61c4363b.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:221'184 bytes
First seen:2023-01-20 19:31:19 UTC
Last seen:2023-05-02 07:42:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 3072:4xe1fwlvFvWa/6/sR3kvkMrxEbUa0NxgoZk23Y2Un7kMtvLp/c3+ljT85xxA8w5M:Qk7iU9rbEdl/R85LA
Threatray 20'768 similar samples on MalwareBazaar
TLSH T13E243A166355D551CB5F417FC016821831F1EB07A72AD38F1AA2D8FA1B862CEF92B8E4
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:AgentTesla exe Telegram

Intelligence

File Origin
# of uploads :
2
# of downloads :
174
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f66c387a6b5f040157057752d613e42fe380ebd205cb6aaf3be83d4cc01bc19c.exe
Verdict:
Malicious activity
Analysis date:
2022-01-10 19:13:30 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d3db88eb-cd8f-4b6d-a017-2e771f7a455d

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/355074/
Detection(s):
Win.Packed.Razy-9862812-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Changing the hosts file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
hacktool packed razy
Link:
https://www.filescan.io/uploads/63caec33447edb203afff8a5/reports/b19175cc-70dd-498e-ac75-8efa4a53ee12/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/0d1b0207-e8b0-4962-ad33-2df8e2d3e306
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1155969
Signature
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Contains functionality to register a low level keyboard hook
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the hosts 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 harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f66c387a6b5f040157057752d613e42fe380ebd205cb6aaf3be83d4cc01bc19c/
Threat name:
ByteCode-MSIL.Infostealer.DarkStealer
Create hunting rule
Status:
Malicious
First seen:
2021-11-24 02:13:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
34 of 39 (87.18%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6zwdq6tll4cacvyfo5jnme7ef7ryb26saxfwvlz35a6uzqa3ygoa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
2fffd654cfb99120026283e06b5e19c7e83c28bd66b6a7f895fef5a99c882f20
AgentTesla
4053206d66d627d145d9da8d8e208d08c85755036a5393ccc6e8afd6117df864
AgentTesla
6058b2482b6e406995e99165b5cbc5eaa90752ed76b25a95c46d5117c5dea458
AgentTesla
783a0ab9ef1ce64fb9390ad9906cdeed76cf978b36c0f5eedbc9e2b18a0ad8da
AgentTesla
a24cd03357921c77bf5e10a36f1ce1bff9fe496a12e21a402d4f66ccf977cfc7
AgentTesla
abbf7b76a162c49661a886934a0499eaf398c72833c9cf99c45074c1547a12e9
AgentTesla
bf22348207105ae1af6bbeb0dae03f550489883ecfac5cb90abbcbd55608cf3b
AgentTesla
ea48f2e7c640666c7d8efad08a960fdc71fbb14047b057d19d8bf2272223a8ea
AgentTesla
+ 20'758 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/230120-x8x6bshe57/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
outlook_office_path
outlook_win_path
Accesses Microsoft Outlook profiles
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
AgentTesla payload
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot2124462934:AAGr-L06waDdFGpnKJz3_DCOFcJpWDQ7WIM/sendDocument
Unpacked files
SH256 hash:
f66c387a6b5f040157057752d613e42fe380ebd205cb6aaf3be83d4cc01bc19c
MD5 hash:
cac1aafc4de8d1702671cbfd61c4363b
SHA1 hash:
5c5384eb5413dc79faac4581888928f4aaa0cb8f
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/1ee99cec-610c-40f8-8b71-6e7e84f66b9d/
Parent samples :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 family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f66c387a6b5f/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/f66c387a6b5f040157057752d613e42fe380ebd205cb6aaf3be83d4cc01bc19c

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:ach_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_AgentTesla_d3ac2b2f
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_d3ac2b2f
Create hunting rule
Rule name:win_agent_tesla_ab4444e9
Create hunting rule
Author:Johannes Bader
Description:detects Agent Tesla
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

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

Web download

AgentTesla

Executable exe f66c387a6b5f040157057752d613e42fe380ebd205cb6aaf3be83d4cc01bc19c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2513707/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/355074/

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