MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc73f236ff623fd5f81bf35bdd750d5925967fbbc3aeb9ea313e62d5a291e932. 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: 18

Intelligence 18 IOCs YARA 17 File information Comments

SHA256 hash:	fc73f236ff623fd5f81bf35bdd750d5925967fbbc3aeb9ea313e62d5a291e932
SHA3-384 hash:	b76352e130fa75ac33ff7a69fa855778d64bebade98ea0c62ab97b71aeb439b8a3abcce550084b8035585457fc696799
SHA1 hash:	83ac526a23602e779e6175134c670b173ae03367
MD5 hash:	018f883769a1feb1fe3646f72a7f438b
humanhash:	eighteen-quiet-floor-friend
File name:	MT103.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	716'288 bytes
First seen:	2024-04-16 11:53:59 UTC
Last seen:	2024-04-16 12:28:13 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:G2xOzT37rxFWrrmqJGI5wcRWVDAG0hBTEMxnfavGejuj8BgYWeIh:GNCrv8OwcRWMycAxBgYnIh
Threatray	4'391 similar samples on MalwareBazaar
TLSH	T1A0E41206B39FEE11D1985736C2C246048374AB072163C38F3FCC218A6997BD55A99FAF
TrID	67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 9.7% (.EXE) Win64 Executable (generic) (10523/12/4) 6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):
dhash icon	e9e098ae9aba8ab2 (12 x AgentTesla, 2 x Formbook, 1 x DarkCloud)
Reporter	threatcat_ch
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

370

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

fc73f236ff623fd5f81bf35bdd750d5925967fbbc3aeb9ea313e62d5a291e932.exe

Verdict:

Malicious activity

Analysis date:

2024-04-16 11:58:43 UTC

Tags:

stealer agenttesla

Link:

https://app.any.run/tasks/ee87cdca-4315-4de5-9e46-ee969d58e8cb

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a window

Сreating synchronization primitives

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

Using the Windows Management Instrumentation requests

DNS request

Connection attempt

Sending a custom TCP request

Reading critical registry keys

Stealing user critical data

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

net_reactor packed packed

Link:

https://www.filescan.io/uploads/661e66dec5dabc22b20089bd/reports/0acb00b0-1982-4fc4-a9dd-46f0e10fec4e/overview

Verdict:

Malicious

Labled as:

MSIL.Bladabindi.Generic

Link:

https://www.hybrid-analysis.com/sample/fc73f236ff623fd5f81bf35bdd750d5925967fbbc3aeb9ea313e62d5a291e932

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

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/8012f720-7dc7-448a-b723-7b8622942577

Result

Threat name:

AgentTesla, PureLog Stealer

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1426703

Signature

.NET source code contains method to dynamically call methods (often used by packers)

.NET source code contains potential unpacker

.NET source code contains very large array initializations

Antivirus / Scanner detection for submitted sample

Contains functionality to log keystrokes (.Net Source)

Found malware configuration

Injects a PE file into a foreign processes

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)

Snort IDS alert for network traffic

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 PureLog Stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/fc73f236ff623fd5f81bf35bdd750d5925967fbbc3aeb9ea313e62d5a291e932

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/fc73f236ff623fd5f81bf35bdd750d5925967fbbc3aeb9ea313e62d5a291e932/

Threat name:

ByteCode-MSIL.Backdoor.Bladabhindi

Status:

Malicious

First seen:

2024-04-15 17:47:08 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

19 of 24 (79.17%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=7rz7enx7mi75l6a36nn525inleszm753yoxlt2rrhzrnliur5eza._file

Verdict:

malicious

Label(s):

agenttesla_v4

agenttesla

AgentTesla

11d7212106c1e7d65ca5b3a3d6c197775e224c151b89900de265e6efcbb68322

AgentTesla

19cfd625d4d50e2104dd254bb8596a316dbe8dbbba51d92dd77f4c92e89c9aa5

AgentTesla

222aedbf7c1a8e5d3b7b48549ab96dd38de83fe5a562f4735101963436bdc1e2

AgentTesla

e9767c506d805d84d30aba139bb06e03f96f3043e902e28d4b36255e9171095b

AgentTesla

f0e269e83b71ba4647b2359703852475faa1288d44f0e3059c84f1c9b4037f07

AgentTesla

+ 4'381 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger spyware stealer trojan

Link:

https://tria.ge/reports/240416-n2wjgsbe3t/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Looks up external IP address via web service

Reads user/profile data of web browsers

Reads WinSCP keys stored on the system

Reads data files stored by FTP clients

Reads user/profile data of local email clients

AgentTesla

Unpacked files

SH256 hash:

22b9cf2506bb0035f7647c78dc56f7c0f9fbe3ece4a587aeda93709cb3833c09

MD5 hash:

bf857e499c01d6d307bd50790e44ea0d

SHA1 hash:

e5482ab1fc1a500fe2a3c5c44626ef90a12885c1

Link:

https://www.unpac.me/results/f90528ba-4f39-44e1-8991-57436b656bb5/

SH256 hash:

0e5a68a65c32aba4fdc6b43ab215bba63078d9b5c848be9a89805d2fae9230a8

MD5 hash:

816f5104d7f7e845d95ef596c9f339fa

SHA1 hash:

cb060e917e22582fc293a1a19c32e15440225762

Detections:

INDICATOR_EXE_Packed_SmartAssembly

Link:

https://www.unpac.me/results/f90528ba-4f39-44e1-8991-57436b656bb5/

SH256 hash:

0c5ffeb9a7fd58943dc3b68111d2f54362a28c6ac4a56fd5af5f9b05f115564e

MD5 hash:

262c44f92877623c53b08957918c39e7

SHA1 hash:

a8592df90fcb160dde1e8726209675a0c085d302

Link:

https://www.unpac.me/results/f90528ba-4f39-44e1-8991-57436b656bb5/

SH256 hash:

59ca0e2d09e01fe07f85bae060b25cee1bb0fc3419e3ed253efd6c707c653f98

MD5 hash:

014795ad0f5e2c5b7eab4f151915f3dc

SHA1 hash:

141cbadcd7fcb04bee34f7cead6c91cd97af186b

Detections:

AgentTesla

win_agent_tesla_g2

INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

Agenttesla_type2

INDICATOR_SUSPICIOUS_Binary_References_Browsers

INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

INDICATOR_EXE_Packed_GEN01

INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Link:

https://www.unpac.me/results/f90528ba-4f39-44e1-8991-57436b656bb5/

Parent samples :
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SH256 hash:

fc73f236ff623fd5f81bf35bdd750d5925967fbbc3aeb9ea313e62d5a291e932

MD5 hash:

018f883769a1feb1fe3646f72a7f438b

SHA1 hash:

83ac526a23602e779e6175134c670b173ae03367

Link:

https://www.unpac.me/results/f90528ba-4f39-44e1-8991-57436b656bb5/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/fc73f236ff62/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

AgentTesla

Score:

0.90

Link:

https://yomi.yoroi.company/submissions/fc73f236ff623fd5f81bf35bdd750d5925967fbbc3aeb9ea313e62d5a291e932

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:	AgentTeslaV3 Create hunting rule
Author:	ditekshen
Description:	AgentTeslaV3 infostealer payload

Rule name:	AgentTeslaV5 Create hunting rule
Author:	ClaudioWayne
Description:	AgentTeslaV5 infostealer payload

Rule name:	INDICATOR_EXE_Packed_GEN01 Create hunting rule
Author:	ditekSHen
Description:	Detect packed .NET executables. Mostly AgentTeslaV4.

Rule name:	INDICATOR_SUSPICIOUS_Binary_References_Browsers Create hunting rule
Author:	ditekSHen
Description:	Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many email and collaboration clients. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many file transfer clients. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing Windows vault credential objects. Observed in infostealers

Rule name:	malware_Agenttesla_type2 Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Agenttesla in memory
Reference:	internal research

Rule name:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	pe_imphash Create hunting rule

Rule name:	PureCrypter Create hunting rule
Author:	@bartblaze
Description:	Identifies PureCrypter, .NET loader and obfuscator.
Reference:	https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	Windows_Generic_Threat_9f4a80b2 Create hunting rule
Author:	Elastic Security

Rule name:	Windows_Trojan_AgentTesla_ebf431a8 Create hunting rule
Author:	Elastic Security
Reference:	https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

File information

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

Malspam

AgentTesla

exe fc73f236ff623fd5f81bf35bdd750d5925967fbbc3aeb9ea313e62d5a291e932

(this sample)

Delivery method

Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

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