MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f3638af8c606225a59f687a938c5d30c098e11195225c2204c42646fec9024f. 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: 8

Intelligence 8 IOCs YARA 11 File information Comments

SHA256 hash:	4f3638af8c606225a59f687a938c5d30c098e11195225c2204c42646fec9024f
SHA3-384 hash:	2d9b600b290eed48b38ddf4a378b5622908ceba64a3bd1160610156880cd67ee7957a3028428ed746c78a8576b5c3e8b
SHA1 hash:	f4b3bbd76c5462ff1ac02eda09e8c38571e89132
MD5 hash:	57a1c7e3f60443e3b4dda849c99ece03
humanhash:	finch-harry-idaho-ten
File name:	PROFORMA INVOICE.pdf.rar
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	609'476 bytes
First seen:	2023-08-28 13:11:01 UTC
Last seen:	Never
File type:	rar
MIME type:	application/x-rar
ssdeep	12288:4zfo/ZlBwdz3uP/wpcAMhvuBXDM3N0Dp5F14MOo1sfoLzyd:4zfGzidDuP/mcAMh2BXhF14P5myd
TLSH	T136D43384741D7B01B2161693D98E0B589FCBBDBBDBA079858128B3C9C78C005BBEDA5D
TrID	61.5% (.RAR) RAR compressed archive (v5.0) (8000/1) 38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter	cocaman
Tags:	AgentTesla INVOICE rar

cocaman

Malicious email (T1566.001)
From: "mariajose<mariajose@garvalin.com>" (likely spoofed)
Received: "from garvalin.com (unknown [45.81.39.53]) "
Date: "23 Aug 2023 05:16:24 +0200"
Subject: "RE : INVOICES"
Attachment: "PROFORMA INVOICE.pdf.rar"

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:	PROFORMA INVOICE.pdf.exe
File size:	705'536 bytes
SHA256 hash:	208319e004a6786ea50aacc67797171f4f4356f232bbf2e99c91cdbbe48c7624
MD5 hash:	b085173b5b38d6706bc4b39d03fc90b5
MIME type:	application/x-dosexec
Signature	AgentTesla

Vendor Threat Intelligence

Detection(s):

Sanesecurity.Malware.28929.RarHeur.UNOFFICIAL

Result

Verdict:

Unknown

File Type:

PE File

Link:

https://app.docguard.net/4f3638af8c606225a59f687a938c5d30c098e11195225c2204c42646fec9024f/results/dashboard

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

masquerade packed

Link:

https://www.filescan.io/uploads/64ec9ce8b3b7d7c782d0a1ae/reports/83c7c0bb-2f70-4bfe-9713-caea9580042e/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/4f3638af8c606225a59f687a938c5d30c098e11195225c2204c42646fec9024f

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.

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/4f3638af8c606225a59f687a938c5d30c098e11195225c2204c42646fec9024f/

Threat name:

Win32.Trojan.Leonem

Status:

Malicious

First seen:

2023-08-22 18:08:17 UTC

File Type:

Binary (Archive)

Extracted files:

AV detection:

21 of 38 (55.26%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=j43drl4mmbrcljm7nb5jhdc5gdajryirsurfyiqeyqten7wjajhq._file

Result

Malware family:

agenttesla

Score:

10/10

Tags:

family:agenttesla keylogger spyware stealer trojan

Link:

https://tria.ge/reports/230828-qmt38abb88/

Behaviour

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Suspicious use of SetThreadContext

Looks up external IP address via web service

AgentTesla

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/4f3638af8c606225a59f687a938c5d30c098e11195225c2204c42646fec9024f

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:	AgentTeslaV4 Create hunting rule
Author:	Rony (r0ny_123)

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

Rule name:	MSIL_SUSP_OBFUSC_XorStringsNet Create hunting rule
Author:	dr4k0nia
Description:	Detects XorStringsNET string encryption, and other obfuscators derived from it
Reference:	https://github.com/dr4k0nia/yara-rules

Rule name:	msil_susp_obf_xorstringsnet Create hunting rule
Author:	dr4k0nia
Description:	Detects XorStringsNET string encryption, and other obfuscators derived from it

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:	SUSP_RAR_with_PDF_Script_Obfuscation Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects RAR file with suspicious .pdf extension prefix to trick users
Reference:	Internal Research

Rule name:	SUSP_RAR_with_PDF_Script_Obfuscation_RID34A4 Create hunting rule
Author:	Florian Roth
Description:	Detects RAR file with suspicious .pdf extension prefix to trick users
Reference:	Internal Research