MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dffa12f91b77f45044817b223e6d573a1d5aaf9c668ae8bf1d543ea222040f75. 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

MarsStealer

Vendor detections: 17

Intelligence 17 IOCs YARA 3 File information Comments

SHA256 hash:	dffa12f91b77f45044817b223e6d573a1d5aaf9c668ae8bf1d543ea222040f75
SHA3-384 hash:	51bf20f20d20757a1478271f6a3a4afc420568df8a147440a9ddb93d9ce40d0831fa1be8b485c825802c887417ae692c
SHA1 hash:	984d5a97a9f594b8beccdfed2d6ec2e9369d364c
MD5 hash:	e070119159a31b350ca20caedb7a0ff5
humanhash:	apart-ohio-south-michigan
File name:	file
Download:	download sample
Signature	MarsStealer Create hunting rule
File size:	2'870'784 bytes
First seen:	2024-09-21 11:54:04 UTC
Last seen:	2024-09-21 12:20:41 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep	24576:DVgdX6EUIj82BnP2ixuhQjJfBg5WttLpQom+0xOPYYz/Db+0zPfUAR9nQlJAsWLO:DOzchQjfGv+jXlQX4LM2AK292HLMi
TLSH	T112D53A51B44966CBD88F16749527CD82AE5D46FD4B2C08C3ED5CB8BA7DA3CC221F6C28
TrID	27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 20.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 18.6% (.EXE) Win32 Executable (generic) (4504/4/1) 8.5% (.ICL) Windows Icons Library (generic) (2059/9) 8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Magika	pebin
Reporter	Bitsight
Tags:	exe MarsStealer

Bitsight

url: http://185.215.113.100/steam/random.exe

Intelligence

File Origin

# of uploads :

# of downloads :

399

Origin country :

Vendor Threat Intelligence

Malware family:

amadey

ID:

File name:

SecuriteInfo.com.Win32.Evo-gen.12679.2695

Verdict:

Malicious activity

Analysis date:

2024-09-21 11:34:10 UTC

Tags:

amadey botnet stealer opendir loader stealc themida

Link:

https://app.any.run/tasks/bc76b549-cac1-423a-9330-e46098fc6576

Note:

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

Detection(s):

SecuriteInfo.com.Win32.PWSX-gen.23111.16736.UNOFFICIAL

Verdict:

Malicious

Score:

81.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=66eeb3def129e67ada90261f

Tags:

Infostealer Network Stealth

Result

Verdict:

Suspicious

Maliciousness:

Behaviour

Searching for the window

Сreating synchronization primitives

Searching for analyzing tools

Searching for synchronization primitives

Launching the default Windows debugger (dwwin.exe)

Connection attempt to an infection source

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

microsoft_visual_cc packed

Link:

https://www.filescan.io/uploads/66eeb3e2ba486ed7e86f3acf/reports/f557cf03-58e7-416c-bc86-3bb640704df9/overview

Verdict:

Malicious

Labled as:

Zusy.Generic

Link:

https://www.hybrid-analysis.com/sample/dffa12f91b77f45044817b223e6d573a1d5aaf9c668ae8bf1d543ea222040f75

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:

Malicious

Link:

https://analyze.intezer.com/analyses/43c8de4b-d76b-42ca-abaa-ce3da42d106a

Result

Threat name:

Stealc

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1514932

Signature

AI detected suspicious sample

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Detected unpacking (changes PE section rights)

Found evasive API chain (may stop execution after checking locale)

Found malware configuration

Hides threads from debuggers

Machine Learning detection for sample

Multi AV Scanner detection for domain / URL

PE file contains section with special chars

Searches for specific processes (likely to inject)

Suricata IDS alerts for network traffic

Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)

Tries to detect sandboxes / dynamic malware analysis system (registry check)

Tries to detect sandboxes and other dynamic analysis tools (window names)

Tries to detect virtualization through RDTSC time measurements

Tries to evade debugger and weak emulator (self modifying code)

Yara detected Powershell download and execute

Yara detected Stealc

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/dffa12f91b77f45044817b223e6d573a1d5aaf9c668ae8bf1d543ea222040f75

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/dffa12f91b77f45044817b223e6d573a1d5aaf9c668ae8bf1d543ea222040f75/

Threat name:

Win32.Trojan.Amadey

Status:

Malicious

First seen:

2024-09-21 11:55:06 UTC

File Type:

PE (Exe)

AV detection:

21 of 24 (87.50%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=375bf6i3o72farebpmrd43kxhiovvl44m2forpy5kq7keiqeb52q._file

Verdict:

malicious

Label(s):

stealc

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc botnet:dear discovery evasion stealer

Link:

https://tria.ge/reports/240921-n3fves1drm/

Behaviour

Suspicious behavior: EnumeratesProcesses

System Location Discovery: System Language Discovery

Suspicious use of NtSetInformationThreadHideFromDebugger

Checks BIOS information in registry

Identifies Wine through registry keys

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Stealc

Malware Config

C2 Extraction:

http://185.215.113.103

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/21df41ab-c742-4437-85c7-1e3f0fea3cf1

Unpacked files

SH256 hash:

dffa12f91b77f45044817b223e6d573a1d5aaf9c668ae8bf1d543ea222040f75

MD5 hash:

e070119159a31b350ca20caedb7a0ff5

SHA1 hash:

984d5a97a9f594b8beccdfed2d6ec2e9369d364c

Link:

https://www.unpac.me/results/0b5e9e3e-f535-4927-85df-51fb98d5f878/

Malware family:

Stealc

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/dffa12f91b77/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/dffa12f91b77f45044817b223e6d573a1d5aaf9c668ae8bf1d543ea222040f75

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:	maldoc_find_kernel32_base_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	maldoc_getEIP_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	meth_get_eip Create hunting rule
Author:	Willi Ballenthin

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

MarsStealer

exe dffa12f91b77f45044817b223e6d573a1d5aaf9c668ae8bf1d543ea222040f75

(this sample)

Dropped by

Amadey

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/3182950/

URLhaus

https://urlhaus.abuse.ch/url/3171133/

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
CHECK_NX	Missing Non-Executable Memory Protection	critical

Comments

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