MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b4cd0759ffb8314d799031e229d82bf5adf74ed60f0430c4df7fad3b49137f0. 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: 15

Intelligence 15 IOCs YARA 18 File information Comments 1

SHA256 hash:	1b4cd0759ffb8314d799031e229d82bf5adf74ed60f0430c4df7fad3b49137f0
SHA3-384 hash:	b59a0f8cbdff94812b9c3cb00c2fd366a2163c35d1185c9cb4e751d73cd80c11a004efb99341e3bbc26f7735b1056039
SHA1 hash:	77d61f0c95c5f7cd4378ca528c4d13ce283af5c4
MD5 hash:	9ea3d152c4e248841abf4f490a84b8c9
humanhash:	alabama-speaker-seventeen-kilo
File name:	9ea3d152c4e248841abf4f490a84b8c9
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	100'352 bytes
First seen:	2024-06-17 13:57:46 UTC
Last seen:	2024-06-17 14:22:22 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'743 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep	1536:+A4Lk8u2qHlllllllOdQlwEn+glllllllllllllllllll5xw5ll:RMtYwiVxw5ll
TLSH	T11DA39A92C15411D9EC5E1F7AA4365815216B7F6EFD7CA8AF6A2DB4620B331C3003AD2F
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	35658a8a83a59695 (4 x AgentTesla, 1 x PureCrypter, 1 x AZORult)
Reporter	zbetcheckin
Tags:	32 AgentTesla exe

Intelligence

File Origin

# of uploads :

# of downloads :

382

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

1b4cd0759ffb8314d799031e229d82bf5adf74ed60f0430c4df7fad3b49137f0.exe

Verdict:

Malicious activity

Analysis date:

2024-06-17 14:16:03 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/aa70e349-ae3a-44b6-a301-b0b766dee148

Note:

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

Detection(s):

SecuriteInfo.com.Win32.RansomX-gen.18637.26057.UNOFFICIAL

Verdict:

Malicious

Score:

81.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=667042e40f8138dd4eab8362win7simulatehigh_evasion

Tags:

Stealth Msil

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Connection attempt

Sending an HTTP GET request

Running batch commands

Creating a process with a hidden window

Launching a process

Sending a UDP request

Launching a service

Creating a file in the %AppData% directory

Unauthorized injection to a recently created process

Restart of the analyzed sample

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

Verdict:

Suspicious

Threat level:

5/10

Confidence:

88%

Tags:

obfuscated packed packed smartassembly smart_assembly

Link:

https://www.filescan.io/uploads/667040ef49a1c8306267535f/reports/f8abf84c-80bb-4c3b-9236-6c2cf0ba1249/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_60%

Link:

https://www.hybrid-analysis.com/sample/1b4cd0759ffb8314d799031e229d82bf5adf74ed60f0430c4df7fad3b49137f0

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:

Suspicious

Link:

https://analyze.intezer.com/analyses/32464aa9-b122-46d8-bab1-f1d7dcc35b85

Result

Threat name:

n/a

Detection:

malicious

Classification:

evad

Score:

60 / 100

Link:

https://www.joesandbox.com/analysis/1458380

Signature

.NET source code contains potential unpacker

AI detected suspicious sample

Machine Learning detection for sample

Multi AV Scanner detection for submitted file

Behaviour

Behavior Graph:

Download SVG

Score:

98%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/1b4cd0759ffb8314d799031e229d82bf5adf74ed60f0430c4df7fad3b49137f0

Detection:

agenttesla

Link:

https://mwdb.cert.pl/sample/1b4cd0759ffb8314d799031e229d82bf5adf74ed60f0430c4df7fad3b49137f0/

Threat name:

Win32.Ransomware.Generic

Status:

Suspicious

First seen:

2024-06-17 13:32:57 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

3 of 38 (7.89%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=dngna5m77obrjv4zampcfhmcx5nn65hnmdyegdcn675nhnerg7ya._file

Verdict:

unknown

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger persistence spyware stealer trojan

Link:

https://tria.ge/reports/240617-q9te7stenh/

Behaviour

Gathers network information

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

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

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:

1b4cd0759ffb8314d799031e229d82bf5adf74ed60f0430c4df7fad3b49137f0

MD5 hash:

9ea3d152c4e248841abf4f490a84b8c9

SHA1 hash:

77d61f0c95c5f7cd4378ca528c4d13ce283af5c4

Detections:

PureCrypter_Stage1

INDICATOR_EXE_Packed_SmartAssembly

Link:

https://www.unpac.me/results/9a701b17-c3b8-4c76-b82c-547d49d9a041/

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

Threat name:

Malicious File

Score:

0.97

Link:

https://yomi.yoroi.company/submissions/1b4cd0759ffb8314d799031e229d82bf5adf74ed60f0430c4df7fad3b49137f0

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_EXE_Packed_SmartAssembly Create hunting rule
Author:	ditekSHen
Description:	Detects executables packed with SmartAssembly

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.

Web download

AgentTesla

exe 1b4cd0759ffb8314d799031e229d82bf5adf74ed60f0430c4df7fad3b49137f0

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2893902/

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

Comments

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zbet commented on 2024-06-17 13:57:47 UTC

url : hxxp://78.111.67.189/ecg/IMG_812_06108.exe