MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8f04bba175e96923db4eb5a06dfe1e4c39051cfbc1d536cc3d1270b3cad487fb. 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 18 File information Comments

SHA256 hash:	8f04bba175e96923db4eb5a06dfe1e4c39051cfbc1d536cc3d1270b3cad487fb
SHA3-384 hash:	52adc2357f1a8b403e31a977d29f33a90a7bb14cf3cd8729a2fb3d36540f06582584d073a1b04c9147fc4b46c69ac8bd
SHA1 hash:	c37bb2d946fc4a2e80af4f2ba335caeeab164522
MD5 hash:	8a32cb40f95d2c92d52f01b2c5a76712
humanhash:	five-failed-double-missouri
File name:	PL -quote.exe
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	645'120 bytes
First seen:	2024-04-30 06:50:11 UTC
Last seen:	2024-04-30 07:32:59 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep	12288:Y03iskenZWZR7scIOM2TOfZBR3NFKSadF19jWe+RLrB778Q:PhZuFZIOWfxzKSC0JrB
Threatray	1'169 similar samples on MalwareBazaar
TLSH	T150D423A4F72D5731D079CBF364AB6253977849A808A8D33A49D0A1F7B91DF844902F2B
TrID	63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 11.2% (.SCR) Windows screen saver (13097/50/3) 9.0% (.EXE) Win64 Executable (generic) (10523/12/4) 5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter	cocaman
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

391

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

8f04bba175e96923db4eb5a06dfe1e4c39051cfbc1d536cc3d1270b3cad487fb.exe

Verdict:

Malicious activity

Analysis date:

2024-04-30 06:50:27 UTC

Tags:

smtp exfiltration stealer agenttesla

Link:

https://app.any.run/tasks/3fb7b6b8-c8dc-4209-8cee-075a05e20dec

Note:

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

Detection(s):

Porcupine.Malware.58887.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a window

Сreating synchronization primitives

Creating a process with a hidden window

Creating a file in the %AppData% directory

Enabling the 'hidden' option for recently created files

Adding an access-denied ACE

Creating a file in the %temp% directory

Launching a process

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

Creating a file in the %AppData% subdirectories

Reading critical registry keys

Sending an HTTP GET request

Setting a keyboard event handler

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Stealing user critical data

Adding an exclusion to Microsoft Defender

Enabling autorun by creating a file

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

packed

Link:

https://www.filescan.io/uploads/663094df47bfd8641ebaffb3/reports/4e0c1733-4ff1-4c49-9e89-9dc0e5aa4d33/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/8f04bba175e96923db4eb5a06dfe1e4c39051cfbc1d536cc3d1270b3cad487fb

Malware family:

Agent Tesla

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/92280b68-522c-4364-954d-00a8856f81e6

Result

Threat name:

AgentTesla, PureLog Stealer

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1433892

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

Adds a directory exclusion to Windows Defender

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Contains functionality to log keystrokes (.Net Source)

Found malware configuration

Hides that the sample has been downloaded from the Internet (zone.identifier)

Injects a PE file into a foreign processes

Installs a global keyboard hook

Loading BitLocker PowerShell Module

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

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

Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet

Sigma detected: Scheduled temp file as task from temp location

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)

Uses schtasks.exe or at.exe to add and modify task schedules

Yara detected AgentTesla

Yara detected AntiVM3

Yara detected Generic Downloader

Yara detected PureLog Stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/8f04bba175e96923db4eb5a06dfe1e4c39051cfbc1d536cc3d1270b3cad487fb

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/8f04bba175e96923db4eb5a06dfe1e4c39051cfbc1d536cc3d1270b3cad487fb/

Threat name:

ByteCode-MSIL.Spyware.Negasteal

Status:

Malicious

First seen:

2024-04-29 15:32:28 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

19 of 24 (79.17%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=r4clxilv5fushw2owwqg37q6jq4qkhh3yhktntb5cjylhswuq75q._file

Verdict:

malicious

Label(s):

agenttesla_v4

agenttesla

AgentTesla

98b85ee0663117740bdac3c6af9fd2c637206f83be0978b865bc9cce1cc2eb51

AgentTesla

a689e5f1c8d3a195368dd62cf94953e55abbbb87f75e0363a6d09dfe2bb2bcb9

AgentTesla

fb422ed39cbabcab2449fde2224bfa281f4248e08014b4e3a60003842409d7a6

AgentTesla

+ 1'159 additional samples on MalwareBazaar

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger persistence spyware stealer trojan

Link:

https://tria.ge/reports/240430-hmg5naeg52/

Behaviour

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Suspicious use of SetThreadContext

Adds Run key to start application

Looks up external IP address via web service

Checks computer location settings

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:

aed4a976a528f9472b707daae3bc4e722978bce7f0ac54b72cf1cfcd5981a5d8

MD5 hash:

9e4aea62ee76efb9013e6440afd8ffe6

SHA1 hash:

8d597f109698e7c74da0f20815fc4da575ce29c4

Link:

https://www.unpac.me/results/3e8f3eb0-96ec-4495-989d-1bc3b3a9e2e8/

SH256 hash:

be90654d1de70313ed1a7f1df854e70836cb15bf68994efa48b29c687010453b

MD5 hash:

fb43d947626f57f4ccbaec3a443b39d5

SHA1 hash:

10f61d35f858692c557fcc4c134cc87dfb843533

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/3e8f3eb0-96ec-4495-989d-1bc3b3a9e2e8/

Parent samples :
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SH256 hash:

e950413bc9a31d400e5a40a73652280048d72e3fff95c8c20f892fb14bcc44f9

MD5 hash:

14d14aae5514bf906bcf21b6bccc9414

SHA1 hash:

0b052032bc892d9850daceb5205ccc4385b77afc

Link:

https://www.unpac.me/results/3e8f3eb0-96ec-4495-989d-1bc3b3a9e2e8/

SH256 hash:

8213a6a34c36db37675298dcbbbb36451ddf233c1af7e8783be225d3e4c08271

MD5 hash:

a2f5dafc17432fdea2f85c9c972167ca

SHA1 hash:

004139faa5268e3fd9fcc92710d0e331d32a2d7b

Link:

https://www.unpac.me/results/3e8f3eb0-96ec-4495-989d-1bc3b3a9e2e8/

SH256 hash:

8f04bba175e96923db4eb5a06dfe1e4c39051cfbc1d536cc3d1270b3cad487fb

MD5 hash:

8a32cb40f95d2c92d52f01b2c5a76712

SHA1 hash:

c37bb2d946fc4a2e80af4f2ba335caeeab164522

Link:

https://www.unpac.me/results/3e8f3eb0-96ec-4495-989d-1bc3b3a9e2e8/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/8f04bba175e9/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/8f04bba175e96923db4eb5a06dfe1e4c39051cfbc1d536cc3d1270b3cad487fb

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_DIFF_Common_Strings_01 Create hunting rule
Author:	schmidtsz
Description:	Identify partial Agent Tesla strings

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:	Multifamily_RAT_Detection Create hunting rule
Author:	Lucas Acha (http://www.lukeacha.com)
Description:	Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables

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

Rule name:	NETexecutableMicrosoft 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.

Malspam

AgentTesla

rar 53b91eebb972d878123587bdbef591a49135baa6258dbace13ab740addac9577

AgentTesla

exe 8f04bba175e96923db4eb5a06dfe1e4c39051cfbc1d536cc3d1270b3cad487fb

(this sample)

Delivery method

Other

Dropped by

SHA256 53b91eebb972d878123587bdbef591a49135baa6258dbace13ab740addac9577

Dropped by

MD5 ed7aa696616cdc404d902008e304512d

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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