MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ff67e66da1391e2d9cf3b5ea22b178771e7db0fe885885d318d3bb9d03d14827. 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

RustyStealer

Vendor detections: 15

Intelligence 15 IOCs YARA 21 File information Comments

SHA256 hash:	ff67e66da1391e2d9cf3b5ea22b178771e7db0fe885885d318d3bb9d03d14827
SHA3-384 hash:	c1fbaf9dc20b4bc9aa2153728c0fff7d998ae157439434e3713f60ac10dcb3d198a5407961cd379980ef9c26e13023c6
SHA1 hash:	52f2e6614b6af7fa5ab66e553d1b8d63ad2929d4
MD5 hash:	5ae7bee777ca78d37f84571fd0173416
humanhash:	red-paris-papa-friend
File name:	ff67e66da1391e2d9cf3b5ea22b178771e7db0fe885885d318d3bb9d03d14827.bin
Download:	download sample
Signature	RustyStealer Create hunting rule
File size:	1'084'956 bytes
First seen:	2026-11-10 12:07:42 UTC
Last seen:	2026-11-10 12:49:39 UTC
File type:	exe
MIME type:	application/vnd.microsoft.portable-executable
imphash	172f147ed81a86935b63248026265d72 (1 x RustyStealer)
ssdeep	12288:bgQbCRJAH5mPFdrZxg9ietx3t2SoK+370mdckFc+yqLs/t3AKfp1gUR:0Qbugm9aAe12zV70pkFcZws//p1HR
TLSH	T187356D03E69681F9C09DC4B4831A9737AA32B8CA0735BAEF17D457112F69FA05F2D316
TrID	33.1% (.EXE) Win64 Executable (generic) (6522/11/2) 25.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 10.4% (.ICL) Windows Icons Library (generic) (2059/9) 10.3% (.EXE) OS/2 Executable (generic) (2029/13) 10.1% (.EXE) Generic Win/DOS Executable (2002/3)
Magika	pebin
Reporter	kernelv0id
Tags:	exe RustyStealer

Intelligence

File Origin

# of uploads :

# of downloads :

161

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

n/a

ID:

File name:

obf.exe

Verdict:

Suspicious activity

Analysis date:

2026-04-12 07:31:35 UTC

Tags:

auto-reg

Link:

https://app.any.run/tasks/23665678-29df-4b3b-ac73-6a57119d07d6

Note:

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

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/99142/

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6af30938463538821bc39e82

Tags:

vmdetect dropper virus remo

Result

Verdict:

Malware

Maliciousness:

Behaviour

Using the Windows Management Instrumentation requests

Running batch commands

Launching a process

Creating a file in the system32 directory

Enabling the 'hidden' option for recently created files

Creating a file in the %temp% directory

Creating a file

Creating a process from a recently created file

DNS request

Connection attempt

Sending a custom TCP request

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

adaptive-context anti-debug anti-vm cmd crypto evasive expand fingerprint lolbin masquerade microsoft_visual_cc overlay packed reconnaissance

Link:

https://www.filescan.io/uploads/6af309389cff0479e1087d20/reports/5b543cbc-48d3-427b-bf21-c468e5f0158d/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/ff67e66da1391e2d9cf3b5ea22b178771e7db0fe885885d318d3bb9d03d14827

Verdict:

Malicious

File Type:

exe x64

First seen:

2026-04-12T04:37:00Z UTC

Last seen:

2026-04-13T09:30:00Z UTC

Hits:

~100

Link:

https://opentip.kaspersky.com/ff67e66da1391e2d9cf3b5ea22b178771e7db0fe885885d318d3bb9d03d14827/results?tab=lookup

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/749a02d8-b6ce-4247-a4c9-2abd1a16e04c

Result

Threat name:

n/a

Detection:

malicious

Classification:

expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/2003132

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Contain functionality to detect virtual machines

Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)

Drops executables to the windows directory (C:\Windows) and starts them

Found API chain indicative of debugger detection

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Potential Privilege Escalation using Task Scheduler highest RunLevel

Sigma detected: Invoke-Obfuscation CLIP+ Launcher

Sigma detected: Invoke-Obfuscation VAR+ Launcher

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Uses schtasks.exe or at.exe to add and modify task schedules

Behaviour

Behavior Graph:

Download SVG

Verdict:

inconclusive

YARA:

6 match(es)

Tags:

Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64

Link:

https://app.malva.re/file/5ae7bee777ca78d37f84571fd0173416

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/ff67e66da1391e2d9cf3b5ea22b178771e7db0fe885885d318d3bb9d03d14827/

Threat name:

Win64.Trojan.Tasker

Status:

Malicious

First seen:

2026-04-12 07:32:10 UTC

File Type:

PE+ (Exe)

AV detection:

22 of 36 (61.11%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=75t6m3nbhepc3hhtwxvcfmlyo4ph3mh6rbmiluyy2o5z2a6rjatq._file

Result

Malware family:

asyncrustrat

Score:

10/10

Tags:

family:asyncrustrat defense_evasion discovery execution persistence rat

Link:

https://tria.ge/reports/261110-pa16bssygx/

Behaviour

Delays execution with timeout.exe

Scheduled Task/Job: Scheduled Task

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Views/modifies file attributes

Executes a command shell one-liner

Reads the TCP/IP host and domain name from the registry

Drops file in System32 directory

Executes dropped EXE

Detects AsyncRustRAT

Family: AsyncRustRAT

Malware Family:

n/a

Verdict:

Suspicious

Tags:

evasion rat

YARA:

WMI_strings command_and_control UNPROTECT_Possible_GetForegroundWindow_Evasion

Link:

https://app.threat.zone/submission/67239427-95db-4a39-b699-4d8e2039df7b

Malware Family:

tasker

Malicious:

True

Tags:

file-overlay debug-check exe service-scan wmi-activity 64bit exec

Link:

https://intel.virussign.com/intelligence/file/ff67e66da1391e2d9cf3b5ea22b178771e7db0fe885885d318d3bb9d03d14827

Unpacked files

SH256 hash:

ff67e66da1391e2d9cf3b5ea22b178771e7db0fe885885d318d3bb9d03d14827

MD5 hash:

5ae7bee777ca78d37f84571fd0173416

SHA1 hash:

52f2e6614b6af7fa5ab66e553d1b8d63ad2929d4

Link:

https://www.unpac.me/results/4a0121ca-7a81-4a10-ad43-64500db1297a/

Malware family:

AsyncRustRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/ff67e66da139/report/overview.html

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

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:	Check_Dlls Create hunting rule

Rule name:	command_and_control Create hunting rule
Author:	CD_R0M_
Description:	This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group

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

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

Rule name:	detect_powershell Create hunting rule
Author:	daniyyell
Description:	Detects suspicious PowerShell activity related to malware execution

Rule name:	Detect_PowerShell_Obfuscation Create hunting rule
Author:	daniyyell
Description:	Detects obfuscated PowerShell commands commonly used in malicious scripts.

Rule name:	Disable_Defender Create hunting rule
Author:	iam-py-test
Description:	Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen

Rule name:	exploit_any_poppopret Create hunting rule
Author:	Jeff White [karttoon@gmail.com] @noottrak
Description:	Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	MULTI_Malware_AzaleaAgent_ForgeAuto_8919d4ba Create hunting rule
Author:	Marjoriefort
Description:	Detects AzaleaAgent (inconnu, etat binaire)

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	ProgramLanguage_Rust Create hunting rule
Author:	albertzsigovits
Description:	Application written in Rust programming language

Rule name:	Rustyloader_mem_loose Create hunting rule
Author:	James_inthe_box
Description:	Corroded buerloader
Reference:	https://app.any.run/tasks/83064edd-c7eb-4558-85e8-621db72b2a24

Rule name:	SCRIPT_Dropper_Unknown_ForgeAuto_aaa464f7 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (script_js, etat binaire)

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

Rule name:	VECT_Ransomware Create hunting rule
Author:	Mustafa Bakhit
Description:	Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

Rule name:	vmdetect Create hunting rule
Author:	nex
Description:	Possibly employs anti-virtualization techniques

Rule name:	WIN_Malware_Unknown_ForgeAuto_37b4704b Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_4fa7e284_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat extrait)

File information

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

Cape

https://www.capesandbox.com/analysis/99142/

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