MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 05261e8594490477eddd50ccd0499af1dd0f1bdeac466c1ddcf435afe4841641. 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: 17

Intelligence 17 IOCs YARA 19 File information Comments

SHA256 hash:	05261e8594490477eddd50ccd0499af1dd0f1bdeac466c1ddcf435afe4841641
SHA3-384 hash:	79ce4de7b71e4a9d37bd7f75da61159d17a1e593886243503952076dc2937ccd25b9ee2b10987a4e018145ad5fcdfcb3
SHA1 hash:	f616e2c9d906cb5ddec0ef90e9f144df8c8c0a7d
MD5 hash:	4e128480ea1793824bcee0e9dba0dd7f
humanhash:	black-hot-mirror-maryland
File name:	SecuriteInfo.com.Heur.14438.3985
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	720'392 bytes
First seen:	2024-03-20 04:28:35 UTC
Last seen:	2024-03-21 13:09:23 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep	12288:TeUqpAxb1kz0Mb4HIjz16+EzIOmtmBjZaVKNgPZ5l58kOg1KoYJaPKRUDVkR:TeUqpAxb1ZIUIHA+EEOmtc/NgPxWkXoZ
Threatray	4'781 similar samples on MalwareBazaar
TLSH	T1F9E4225133F82953FEB268B9967458452B72B143352AC3DA1DC962CEB8D6F91032873F
TrID	71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):
dhash icon	cc948b667969653c (13 x AgentTesla, 5 x Formbook, 2 x RemcosRAT)
Reporter	SecuriteInfoCom
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

339

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

05261e8594490477eddd50ccd0499af1dd0f1bdeac466c1ddcf435afe4841641.exe

Verdict:

Malicious activity

Analysis date:

2024-03-20 04:31:05 UTC

Tags:

agenttesla stealer

Link:

https://app.any.run/tasks/d1f94ed5-b08e-49f4-9e13-0984fe635102

Note:

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

Detection(s):

Porcupine.Malware.58887.UNOFFICIAL

SecuriteInfo.com.Heur.14438.3985.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

Using the Windows Management Instrumentation requests

Сreating synchronization primitives

DNS request

Connection attempt

Sending an HTTP GET request

Reading critical registry keys

Setting a keyboard event handler

Stealing user critical data

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

masquerade overlay packed

Link:

https://www.filescan.io/uploads/65fa66105cd908a33db9a79b/reports/11278074-d3c3-4eb4-9c5b-57ceb433d914/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/05261e8594490477eddd50ccd0499af1dd0f1bdeac466c1ddcf435afe4841641

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/10df2d21-f3b2-4ff4-907a-4fb82a76e28f

Result

Threat name:

AgentTesla

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1412139

Signature

.NET source code contains potential unpacker

Check if machine is in data center or colocation facility

Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)

Contains functionality to log keystrokes (.Net Source)

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)

Queries sensitive video device information (via WMI, Win32_VideoController, 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 Putty / WinSCP information (sessions, passwords, etc)

Tries to steal Mail credentials (via file / registry access)

Yara detected AgentTesla

Yara detected AntiVM3

Yara detected Generic Downloader

Behaviour

Behavior Graph:

Download SVG

Score:

96%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/05261e8594490477eddd50ccd0499af1dd0f1bdeac466c1ddcf435afe4841641

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/05261e8594490477eddd50ccd0499af1dd0f1bdeac466c1ddcf435afe4841641/

Threat name:

Win32.Spyware.Negasteal

Status:

Malicious

First seen:

2024-03-20 04:29:07 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

24 of 38 (63.16%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=autb5bmujechp3o5kdgnasm26hoq6g66vrdgyho46q227zeeczaq._file

Verdict:

malicious

AgentTesla

5491fcd61ab5265371cd23d171a7e793be1f33dc2e7f8a08d1feb11fa7be8283

AgentTesla

7948315565e8321056661c7aabdeb10e01ca73d2425a6f6bd17593a0ffb484ef

AgentTesla

d31237a1c55a5143af91c36cdac3c89509942f0b9c7be6cc4e390eed9277d76a

AgentTesla

+ 4'771 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger spyware stealer trojan

Link:

https://tria.ge/reports/240320-e382jage99/

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

Reads WinSCP keys stored on the system

Reads data files stored by FTP clients

Reads user/profile data of local email clients

Reads user/profile data of web browsers

AgentTesla

Unpacked files

SH256 hash:

3dd902485a81eeb117eb0edf4585958cb5220909224880d489af01b7c2ad360d

MD5 hash:

3d4d7cc3b69aeed4ab7c058c0aaa985b

SHA1 hash:

bc5f1d6c6d8395bec87178ce2e579485fb8337a9

Link:

https://www.unpac.me/results/a300f575-4181-487c-949e-0831262fd5d1/

SH256 hash:

8a42144bfaed7278d478bb226c64cfad8abd909f2f4ce18ed17018eebbd590dd

MD5 hash:

10f2dcb1aa3ec0d37027968d347b257a

SHA1 hash:

b2d1181f17169f535a8bfa614c21aab23260155b

Link:

https://www.unpac.me/results/a300f575-4181-487c-949e-0831262fd5d1/

SH256 hash:

651fc838a1ddf94087801a771da3632fdb1f463fb556730371877e2a8f3eb69f

MD5 hash:

7059b9d555a40df0758ffd0cb6692353

SHA1 hash:

82f736124863a7f891bc8eee89f8cb5a732de5e4

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_SUSPICIOUS_EXE_SandboxHookingDLL

INDICATOR_EXE_Packed_GEN01

INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Link:

https://www.unpac.me/results/a300f575-4181-487c-949e-0831262fd5d1/

Parent samples :

98662189dd651a779b07e9811eec44948ea41ac0f0d1d770efc6b9ff63e3b285
61ee3d529ac5458175e10f0205a0e209d3ace85dc6185652053ddc92c05945eb
05261e8594490477eddd50ccd0499af1dd0f1bdeac466c1ddcf435afe4841641
72c40f3f6947ff099a6d1be24abc9e8bce01ddc10c90f61d8f0b8e1a3c283d9c
eb0ff5d9f0cb546e4bea9c3b49c6f2fc84c32011b7a45b836857998f90bae51b
95e526a19a39942ee7073e28adddb685bb5bb41f889858c91bea644c657acb36
210759f49f032d8823c360b0e6d609ccf2259b885e86a15a70a39c09124b9a60
dadafd098dc94e3706b0e84b36042b4dced32a372c4b086d85df4a23943b88ac

SH256 hash:

c1fc851f58ac28ad00fcf4c544d72f60ee8446095a78306ff27bb9ec266e3dc8

MD5 hash:

e67360696d50e8e7ec7627414305a8dc

SHA1 hash:

39459f04c1689c70a29743b87d49932cf89ed9cc

Detections:

INDICATOR_EXE_Packed_SmartAssembly

Link:

https://www.unpac.me/results/a300f575-4181-487c-949e-0831262fd5d1/

Parent samples :

b0b90ffc1bf2e33f057981b8d2451df026fc5179df8774f1cd647ff0a5bf89fd
05261e8594490477eddd50ccd0499af1dd0f1bdeac466c1ddcf435afe4841641
f1a5b558c8b9bcc0be61cdcbac47e4e6db8bf92da025ac777d8ea7832d1d46f7

SH256 hash:

05261e8594490477eddd50ccd0499af1dd0f1bdeac466c1ddcf435afe4841641

MD5 hash:

4e128480ea1793824bcee0e9dba0dd7f

SHA1 hash:

f616e2c9d906cb5ddec0ef90e9f144df8c8c0a7d

Detections:

INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438

Link:

https://www.unpac.me/results/a300f575-4181-487c-949e-0831262fd5d1/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/05261e859449/report/overview.html

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

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:	DebuggerCheck__RemoteAPI Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

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

Rule name:	INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438 Create hunting rule
Author:	ditekSHen
Description:	Detects executables signed with stolen, revoked or invalid certificates

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_SandboxHookingDLL Create hunting rule
Author:	ditekSHen
Description:	Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

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:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	pe_imphash Create hunting rule

Rule name:	PE_Potentially_Signed_Digital_Certificate Create hunting rule
Author:	albertzsigovits

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

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 (GUARD_CF)	high

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