MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 82d4b4cff135a6e13a6f58c5ff84fde26be30c8063a216183aaa0f035620755f. 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 20 File information Comments

SHA256 hash:	82d4b4cff135a6e13a6f58c5ff84fde26be30c8063a216183aaa0f035620755f
SHA3-384 hash:	3abcac391317b33790bc2c45487c21062687fe8e191c46dff0cd87887dba4a578edf7a300834d2b8876b9168f26e67d2
SHA1 hash:	655f984d3aac7cff3958d7046c43004aecc2cacd
MD5 hash:	351e34490e42fa013f5ecf82de7be7be
humanhash:	pennsylvania-paris-snake-saturn
File name:	SecuriteInfo.com.Trojan.MSIL.Crypt.1234.1843
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	842'752 bytes
First seen:	2024-04-28 07:38:27 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep	24576:0qf7a44E29ZQWjDwKB8fJxRfVviRiDOr0ZSNqL8pKCBI:bf7a4rwRkKBeJxRfVaRiyrsS4I7B
TLSH	T1A305CF9C3240B5DFC85BC9769AA85C64EB6164A7570BD207A01712ECEE0EAD7CF142F3
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)
File icon (PE):
dhash icon	30f0acacacfcf070 (2 x Formbook, 1 x AgentTesla, 1 x RedLineStealer)
Reporter	SecuriteInfoCom
Tags:	AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

302

Origin country :

Vendor Threat Intelligence

Malware family:

agenttesla

ID:

File name:

82d4b4cff135a6e13a6f58c5ff84fde26be30c8063a216183aaa0f035620755f.exe

Verdict:

Malicious activity

Analysis date:

2024-04-28 07:41:29 UTC

Tags:

stealer agenttesla exfiltration

Link:

https://app.any.run/tasks/9a9d751b-2f9c-421b-8624-d81080a5ba41

Note:

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

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Creating a window

Creating a process with a hidden window

Launching a process

Creating a file

Using the Windows Management Instrumentation requests

Reading critical registry keys

DNS request

Connection attempt

Stealing user critical data

Adding an exclusion to Microsoft Defender

Unauthorized injection to a system process

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/82d4b4cff135a6e13a6f58c5ff84fde26be30c8063a216183aaa0f035620755f

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.

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/888ccdc5-e550-45d3-b492-087229989d05

Result

Threat name:

AgentTesla, PureLog Stealer

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1432792

Signature

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

.NET source code contains potential unpacker

Adds a directory exclusion to Windows Defender

Allocates memory in foreign processes

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

Loading BitLocker PowerShell Module

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)

Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet

Snort IDS alert for network traffic

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

Yara detected PureLog Stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/82d4b4cff135a6e13a6f58c5ff84fde26be30c8063a216183aaa0f035620755f

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/82d4b4cff135a6e13a6f58c5ff84fde26be30c8063a216183aaa0f035620755f/

Threat name:

Win32.Trojan.Sonbokli

Status:

Malicious

First seen:

2024-04-28 07:39:06 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

10 of 24 (41.67%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=qlkljt7rgwtocotpldc77bh54jv6gdeamorbmgb2vihqgvraovpq._file

Verdict:

malicious

Label(s):

agenttesla_v4

agenttesla

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger spyware stealer trojan

Link:

https://tria.ge/reports/240428-jgyqwsbb8y/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Suspicious use of SetThreadContext

Checks computer location settings

AgentTesla

Unpacked files

SH256 hash:

b74e088992fa1c6b347de6fa387a954716f519828388c4487c10a6ca1c705f24

MD5 hash:

9d43f51fec42f1b3e5d8ea68b2d5d768

SHA1 hash:

be631e75bd635a27d3aa312d5ff612a1e70a5b6f

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/bc1d9ed9-780b-4e07-a2e5-6f49a1224813/

Parent samples :

7b360b7d9ecc11f7eac58a50bca9abbb0ffcafb81df863eb24190d32fd3c6de6
44509a1580c18a2b3b59c340de7b28d7451ccbbb41e264e168bbe148c66ae930
01e11e2b3abb5192cf1d4d3753df23599fa3027db527c45b66cc7cfac7248ebd
82d4b4cff135a6e13a6f58c5ff84fde26be30c8063a216183aaa0f035620755f
5dda08c4efdce4925825f713a711f904175435cb4851e24ff67365d63f891f86

SH256 hash:

a3de65d9607fa28995b6d60b0ad501d36107454865c7a74e8121ec11320ae565

MD5 hash:

7dfefede4d4b4d15fe2c4d83996e9e1a

SHA1 hash:

62e0258f0a8d23d17225ff7ad0b304ab12a9fd6a

Link:

https://www.unpac.me/results/bc1d9ed9-780b-4e07-a2e5-6f49a1224813/

SH256 hash:

9d29ddb766975d283e42d47ee67fd1f3b88ddecf6defe6f408651984a1eb7313

MD5 hash:

fab0e6b2412a13709095243bcf12af07

SHA1 hash:

23ad8b746833f68dcad791f23f3c7f236af907bb

Link:

https://www.unpac.me/results/bc1d9ed9-780b-4e07-a2e5-6f49a1224813/

SH256 hash:

4fdcc55a5bffa6dc97c049bb9de7a7d2985d3a545ec21a57bfd3060022399998

MD5 hash:

a8066de28a854a4defdcdb217cbc46cd

SHA1 hash:

0194d8067a9674003e8d0db165d7903c0b717643

Link:

https://www.unpac.me/results/bc1d9ed9-780b-4e07-a2e5-6f49a1224813/

SH256 hash:

82d4b4cff135a6e13a6f58c5ff84fde26be30c8063a216183aaa0f035620755f

MD5 hash:

351e34490e42fa013f5ecf82de7be7be

SHA1 hash:

655f984d3aac7cff3958d7046c43004aecc2cacd

Link:

https://www.unpac.me/results/bc1d9ed9-780b-4e07-a2e5-6f49a1224813/

Malware family:

AgentTesla

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/82d4b4cff135/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/82d4b4cff135a6e13a6f58c5ff84fde26be30c8063a216183aaa0f035620755f

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

Rule name:	DebuggerCheck__QueryInfo 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_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:	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.

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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