MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81fad1df72f5c7a252bc02bb5c5968e1a7845eb675bde5f679087e0e021c0cbf. 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: 20

Intelligence 20 IOCs YARA 16 File information Comments

SHA256 hash:	81fad1df72f5c7a252bc02bb5c5968e1a7845eb675bde5f679087e0e021c0cbf
SHA3-384 hash:	94da224dbde2c19e8eda6086fbd31a19373d78e4675e018cb205947a70aa9ff64e2aff15de62496803a5536914e8de27
SHA1 hash:	53a0d7d2d79cd6ea8c9accc970718e1477fb3c1a
MD5 hash:	c84276ff1ae6e9cac52765e18a2deb07
humanhash:	nebraska-tennessee-bacon-paris
File name:	81fad1df72f5c7a252bc02bb5c5968e1a7845eb675bde5f679087e0e021c0cbf
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	762'880 bytes
First seen:	2024-06-04 11:11:56 UTC
Last seen:	2024-06-04 11:39:17 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep	12288:8MHcpxMJn8DvrS2huuQGjJvtM31+TkgTAOt8gVZa8KGjaKFw0kJkYTHhlchZ7rvO:8ewiRJmQGtvtyrKrW0Y
Threatray	4'265 similar samples on MalwareBazaar
TLSH	T1DBF4DFAC3210BA9FC82BCD769AA86C24EA21A477431BD343905715EC9E0DAD7CF155F3
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	adrian__luca
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

341

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

Payment Advice Note for Outstanding Invoice.pdf.exe

Verdict:

Malicious activity

Analysis date:

2024-05-24 09:09:24 UTC

Tags:

evasion smtp exfiltration stealer agenttesla

Link:

https://app.any.run/tasks/c9ba3a84-27ee-4c2c-bcc5-8ebc786eb77d

Note:

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

Detection(s):

SecuriteInfo.com.Win32.PWSX-gen.30202.12362.UNOFFICIAL

Verdict:

Malicious

Score:

92.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=665f02dbab69e84d6a2f5bd3win7simulatehigh_evasion

Tags:

Heur

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Searching for synchronization primitives

Creating a window

Launching a process

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

Unauthorized injection to a system process

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

packed

Link:

https://www.filescan.io/uploads/665ef6866b8dba248b3becc0/reports/4b3f06b3-fcee-423d-b040-b3ebd3203579/overview

Verdict:

Malicious

Labled as:

MSILHeracles.Generic

Link:

https://www.hybrid-analysis.com/sample/81fad1df72f5c7a252bc02bb5c5968e1a7845eb675bde5f679087e0e021c0cbf

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/6ae7b2f4-ac6b-4a49-8ae7-99aabb9d5e6d

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1451658

Signature

.NET source code contains potential unpacker

AI detected suspicious sample

Allocates memory in foreign processes

Antivirus / Scanner detection for submitted sample

Contains functionality to log keystrokes (.Net Source)

Detected unpacking (changes PE section rights)

Detected unpacking (overwrites its own PE header)

Found malware configuration

Injects a PE file into a foreign processes

Installs a global keyboard hook

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)

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)

Writes to foreign memory regions

Yara detected AgentTesla

Yara detected AntiVM3

Yara detected Generic Downloader

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/81fad1df72f5c7a252bc02bb5c5968e1a7845eb675bde5f679087e0e021c0cbf

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/81fad1df72f5c7a252bc02bb5c5968e1a7845eb675bde5f679087e0e021c0cbf/

Threat name:

Win32.Trojan.Generic

Status:

Malicious

First seen:

2024-05-24 00:07:00 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

18 of 24 (75.00%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=qh5ndx3s6xd2euv4ak5vywli4gtyixvwow66l5tzbb7a4aq4bs7q._file

Verdict:

malicious

Label(s):

agenttesla

AgentTesla

5c7c411ea48976a55a30558e1ce6147a7f28b6b99d84083e1f01de1db86bb588

AgentTesla

658d1072c3f7acceb9e9b582c5ea2ae076e02941d602d71ffe22812a592e78c8

AgentTesla

9590e1d446b60f2a62ed6e543d623a857061ca1e80a2a499a9ef7d6c97cc5cb5

AgentTesla

c177812f5ee5c7643659dba85dcdb7d86134d2a437a8c7934c9b63eb3a5b4530

AgentTesla

c907b5ee8b9aae5ad661042f2aed0338df90653b95dad072ef8d8c0b582bc46b

AgentTesla

+ 4'255 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger spyware stealer trojan

Link:

https://tria.ge/reports/240604-natktaef93/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Looks up external IP address via web service

AgentTesla

Verdict:

Suspicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/278ff9b0-fd70-46b0-b69c-70337535d331

Unpacked files

SH256 hash:

0b7dcc18b0ef39734a24ca5923b02df82c670d08365fe376f2ed4ff9fcbc6303

MD5 hash:

0441cc0dacc6d821252e66a156b1d9bd

SHA1 hash:

df46cc702950a53a5de7b804d2076ef03f8ac6b4

Link:

https://www.unpac.me/results/ee6d25e3-e542-41c3-badd-8833bbbfdac8/

SH256 hash:

13dc9352ac2c68c2bc7d837b6c8daa8596555d9e3cde091dba77ab2f2ea4b9af

MD5 hash:

562f21481d9caaa4212a06a46ce42cec

SHA1 hash:

71ea781971a9a79663ad9e3a8a931506676a5634

Link:

https://www.unpac.me/results/ee6d25e3-e542-41c3-badd-8833bbbfdac8/

SH256 hash:

10bfccbfe35c6872632a9b16f07d2b3224c2865e5a50fffe78f3efdbac305b70

MD5 hash:

2f36d40cbbb3bb722e91e5b82bad1362

SHA1 hash:

3b12d65867b89f2971e0e74d66f1d2233329652a

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/ee6d25e3-e542-41c3-badd-8833bbbfdac8/

Parent samples :

1d48ebe8982a1b458bd19f4a6718bb58ec3291e1cdb522ece4b7a67defffc85f
81fad1df72f5c7a252bc02bb5c5968e1a7845eb675bde5f679087e0e021c0cbf
10f6d70d363d93fce85e92f2ea94a36eda4c755606581cd101652afaa97a91fc
f0430c66223a7084799e61e0cb4541d034da240965e9aa62f2d6994ece64a5da
08bb478cb1a7ea9b27e688cb320cafd8d91073cb220d3f956b5c135a50d26c86
195d143141125c9dd97baa660699f96b48fe438146198390ca42af275d53d6f4
97816fec88967a1c4254752ff1cd00c53bb4da79b7069331a7566215e35a53e5

SH256 hash:

4d7851db6d639302ef8d2c2c6a0f427584aecee22e4ecb589e460f1252ab9517

MD5 hash:

7a0892ff038e650b7bdf7efb7fe8497d

SHA1 hash:

24532bfe5e63a296b0de40a3e9b510b796047b28

Link:

https://www.unpac.me/results/ee6d25e3-e542-41c3-badd-8833bbbfdac8/

SH256 hash:

81fad1df72f5c7a252bc02bb5c5968e1a7845eb675bde5f679087e0e021c0cbf

MD5 hash:

c84276ff1ae6e9cac52765e18a2deb07

SHA1 hash:

53a0d7d2d79cd6ea8c9accc970718e1477fb3c1a

Link:

https://www.unpac.me/results/ee6d25e3-e542-41c3-badd-8833bbbfdac8/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/81fad1df72f5/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/81fad1df72f5c7a252bc02bb5c5968e1a7845eb675bde5f679087e0e021c0cbf

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:	Agenttesla_type2 Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Agenttesla in memory
Reference:	internal research

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:	NET Create hunting rule
Author:	malware-lu

Rule name:	pe_imphash Create hunting rule

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.

No further information available

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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