MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef8b003bab8b90edf61c32865ea77df5c6b9f7178e0afdc17fcf0738988b7f8e. 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: 7

Intelligence 7 IOCs YARA 11 File information Comments

SHA256 hash:	ef8b003bab8b90edf61c32865ea77df5c6b9f7178e0afdc17fcf0738988b7f8e
SHA3-384 hash:	80c7b762d18cddfd04ee1624ffc079baded6ef29e926478af7150aafa10010116cce40ade4b282f6e23680bbda1661c0
SHA1 hash:	30db345c1ad446bc8195324285dd72504cdf7372
MD5 hash:	41e0a92a9dee19de2447bcf8e6915600
humanhash:	alanine-dakota-coffee-july
File name:	Invoice.pdf.z
Download:	download sample
Signature	AgentTesla Create hunting rule
File size:	636'588 bytes
First seen:	2023-11-06 19:34:22 UTC
Last seen:	Never
File type:	z
MIME type:	application/x-rar
ssdeep	12288:44YqOqMY/rDnGvaT6qxlWyJztxWWp0MMn4aQ0q1Z4TngnpZUakqrJPS:Eqz5DGvDEBQK0MMnpq1GzgnpWaJ9K
TLSH	T1D5D433C2FD6A33F59368A5683584F10673F7C59B2BAE7938712508AA3054F5234FC8E9
TrID	61.5% (.RAR) RAR compressed archive (v5.0) (8000/1) 38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter	cocaman
Tags:	AgentTesla HSBC INVOICE z

cocaman

Malicious email (T1566.001)
From: "HSBC BANK PLC <no-reply@hsbc.com>" (likely spoofed)
Received: "from hsbc.com (unknown [185.222.58.244]) "
Date: "06 Nov 2023 18:13:46 +0100"
Subject: "Fw: HSBC TT Copy"
Attachment: "Invoice.pdf.z"

Intelligence

File Origin

# of uploads :

# of downloads :

137

Origin country :

File Archive Information

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

File name:	Invoice.pdf.exe
File size:	707'072 bytes
SHA256 hash:	ed3e5af47aca29408248c203ccc55369d5c8e1c7d468b613fd3993fdec39eb08
MD5 hash:	e352ede630d70b3cfe6cf32c34dab0a1
MIME type:	application/x-dosexec
Signature	AgentTesla

Vendor Threat Intelligence

Detection(s):

Sanesecurity.Malware.28929.RarHeur.UNOFFICIAL

Sanesecurity.Rogue.0hr.20231106-1433.UNOFFICIAL

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

masquerade packed

Link:

https://www.filescan.io/uploads/65493fea946b6ab224597011/reports/fc3a3829-62c7-4dae-9803-1d37f4f7f39b/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/ef8b003bab8b90edf61c32865ea77df5c6b9f7178e0afdc17fcf0738988b7f8e

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/ef8b003bab8b90edf61c32865ea77df5c6b9f7178e0afdc17fcf0738988b7f8e/

Threat name:

Win32.Spyware.Negasteal

Status:

Malicious

First seen:

2023-11-06 09:30:57 UTC

File Type:

Binary (Archive)

Extracted files:

AV detection:

13 of 38 (34.21%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=56fqao5lroio35q4gkdf5j356xdlt5yxryfp3ql7z4dtrgelp6ha._file

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

Threat name:

Malicious File

Score:

0.71

Link:

https://yomi.yoroi.company/submissions/ef8b003bab8b90edf61c32865ea77df5c6b9f7178e0afdc17fcf0738988b7f8e

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:	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:	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