MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f258a5d72c7058a6d4f424b2c9bf0dd96a7ab8e4548ffc9f645f2da17cf64a29. 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

ACRStealer

Vendor detections: 13

Intelligence 13 IOCs YARA 27 File information Comments

SHA256 hash:	f258a5d72c7058a6d4f424b2c9bf0dd96a7ab8e4548ffc9f645f2da17cf64a29
SHA3-384 hash:	bd589c7e25294f4829b1a59f4476782f340fb16d85f622e97531a90797d58c6dd1438c3660ae6986f4979b494788f52f
SHA1 hash:	2d4150a7afab466e3febd076bb3888304bef5290
MD5 hash:	8b42c4f9cc063ee1a0c4ada894366010
humanhash:	lion-berlin-white-hot
File name:	ojujn.exe
Download:	download sample
Signature	ACRStealer Create hunting rule
File size:	7'550'592 bytes
First seen:	2026-05-28 23:58:25 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	d42595b695fc008ef2c56aabd8efd68e (373 x Vidar, 94 x Stealc, 92 x Rhadamanthys)
ssdeep	49152:X/YarR5q6X26AKdsMXH0Z7sIRwom5o1TRXR2umo:XTCGqMH0ZsI2b8RB7
Threatray	20 similar samples on MalwareBazaar
TLSH	T149767C4A6CE048EAC46A533289B762957B72BC550F3263C72E90733C3FB26E85D75784
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
dhash icon	ecac8888f8f8f8cc (1 x ACRStealer)
Reporter	aachum
Tags:	cloud55file-cc exe neuralpulsecore5-sbs not-ACRStealer signed

Code Signing Certificate

Organisation:	quiverquant.com
Issuer:	WE1
Algorithm:	sha256WithRSAEncryption
Valid from:	2026-05-09T21:13:51Z
Valid to:	2026-08-07T22:13:46Z
Serial number:	10f69e50b05b14f30ebf139155b65887
Intelligence:	22 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:	SHA256
Thumbprint:	2801725e95be0e3b1f9b4aac0905881257e3b4710d6af443d1df10dd93170732
Source:	This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

iamaachum

http://cloud55file.cc/load/ojujn.exe

C2: http://neuralpulsecore5.sbs/list?param=

Intelligence

File Origin

# of uploads :

# of downloads :

128

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

vidar

ID:

File name:

ojujn.exe

Verdict:

Malicious activity

Analysis date:

2026-05-28 23:43:30 UTC

Tags:

ip-check evasion loader generic golang stealer vidar

Link:

https://app.any.run/tasks/da58766c-ad75-4bac-a00c-8a5c45de7876

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/68366/

Detection(s):

SecuriteInfo.com.Win64.Evo-gen.58637292.UNOFFICIAL

Verdict:

Malicious

Score:

70%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6a18d31d33dfa243d40a9d56

Tags:

injection obfusc

Result

Verdict:

Malware

Maliciousness:

Behaviour

DNS request

Connection attempt

Sending an HTTP GET request

Sending a custom TCP request

Creating a file

Creating a process from a recently created file

Sending an HTTP GET request to an infection source

Сreating synchronization primitives

Connection attempt to an infection source

Verdict:

Malicious

Labled as:

Win/malicious_confidence_90%

Link:

https://www.hybrid-analysis.com/sample/f258a5d72c7058a6d4f424b2c9bf0dd96a7ab8e4548ffc9f645f2da17cf64a29

Verdict:

Malicious

File Type:

exe x64

First seen:

2026-05-28T20:38:00Z UTC

Last seen:

2026-05-30T01:07:00Z UTC

Hits:

~10

Detections:

Backdoor.Win64.Gsb.sb Backdoor.Win64.Gsb.gen

Link:

https://opentip.kaspersky.com/f258a5d72c7058a6d4f424b2c9bf0dd96a7ab8e4548ffc9f645f2da17cf64a29/results?tab=lookup

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/39dfff25-64d6-4b80-8042-ce08723a987f

Result

Threat name:

ACR Stealer, GO Stealer

Detection:

malicious

Classification:

troj.spyw.evad.mine

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1920096

Signature

AI detected suspicious PE digital signature

Allocates memory in foreign processes

Contains functionality to registers a callback to get notified when the system is suspended or resumed (often done by Miners)

Detected unpacking (creates a PE file in dynamic memory)

Drops PE files to the document folder of the user

Found direct / indirect Syscall (likely to bypass EDR)

Found many strings related to Crypto-Wallets (likely being stolen)

Hides threads from debuggers

Maps a DLL or memory area into another process

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Potentially malicious time measurement code found

Suricata IDS alerts for network traffic

Switches to a custom stack to bypass stack traces

Tries to harvest and steal browser information (history, passwords, etc)

Tries to steal Crypto Currency Wallets

Unusual module load detection (module proxying)

Uses known network protocols on non-standard ports

Writes to foreign memory regions

Yara detected ACR Stealer

Yara detected GO Stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/f258a5d72c7058a6d4f424b2c9bf0dd96a7ab8e4548ffc9f645f2da17cf64a29

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/f258a5d72c7058a6d4f424b2c9bf0dd96a7ab8e4548ffc9f645f2da17cf64a29/

Verdict:

Malicious

Threat:

Family.VIDAR

Link:

https://tip.neiki.dev/file/f258a5d72c7058a6d4f424b2c9bf0dd96a7ab8e4548ffc9f645f2da17cf64a29

Threat name:

Win64.Trojan.Generic

Status:

Suspicious

First seen:

2026-05-28 22:22:00 UTC

File Type:

PE+ (Exe)

Extracted files:

AV detection:

9 of 36 (25.00%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=6jmklvzmobmknvhueszmtpyn3fvhvoheksh7zh3el4w2c7hwjiuq._file

Verdict:

malicious

Label(s):

unc_go_loader_002

ACRStealer

43998b11d473dd4ddc92545ef21b5bde25d99ca31b7c6346f89ced93d9574002

ACRStealer

6baf80c1eeefc7c02d0ad16cdc5e375253bf104e7915f8ececacd8f4b372d15c

ACRStealer

c5b8d1b89af16d100021edb32f085de5704eee08bc51bd3edc82f0a997981c36

ACRStealer

c64eb93f00c92ad6367df8de17e7360ba57a34a4e2a85fe7322952513daa50d4

ACRStealer

f668de57394d23a70ea59fcf2039b14ad28a479d59e4dc06ed31c64d740be30c

ACRStealer

+ 10 additional samples on MalwareBazaar

Result

Malware family:

n/a

Score:

10/10

Tags:

discovery spyware stealer

Link:

https://tria.ge/reports/260528-31dplses8r/

Behaviour

Enumerates system info in registry

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Browser Information Discovery

Enumerates physical storage devices

System Location Discovery: System Language Discovery

System Time Discovery

Drops file in Windows directory

Suspicious use of NtSetInformationThreadHideFromDebugger

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Looks up external IP address via web service

Checks computer location settings

Executes dropped EXE

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Downloads MZ/PE file

Suspicious use of NtCreateUserProcessOtherParentProcess

Unpacked files

SH256 hash:

f258a5d72c7058a6d4f424b2c9bf0dd96a7ab8e4548ffc9f645f2da17cf64a29

MD5 hash:

8b42c4f9cc063ee1a0c4ada894366010

SHA1 hash:

2d4150a7afab466e3febd076bb3888304bef5290

Link:

https://www.unpac.me/results/25936d96-134b-4d8a-b907-011a4cf3905c/

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

Threat name:

Legit

Score:

0.00

Link:

https://yomi.yoroi.company/submissions/f258a5d72c7058a6d4f424b2c9bf0dd96a7ab8e4548ffc9f645f2da17cf64a29

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:	cobalt_strike_tmp01925d3f Create hunting rule
Author:	The DFIR Report
Description:	files - file ~tmp01925d3f.exe
Reference:	https://thedfirreport.com

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:	CP_Script_Inject_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	Detects attempts to inject code into another process across PE, ELF, Mach-O binaries

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

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

Rule name:	DetectGoMethodSignatures Create hunting rule
Author:	Wyatt Tauber
Description:	Detects Go method signatures in unpacked Go binaries

Rule name:	Detect_Go_GOMAXPROCS Create hunting rule
Author:	Obscurity Labs LLC
Description:	Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata

Rule name:	GoBinTest Create hunting rule

Rule name:	golang Create hunting rule

Rule name:	Golangmalware Create hunting rule
Author:	Dhanunjaya
Description:	Malware in Golang

Rule name:	golang_binary_string Create hunting rule
Description:	Golang strings present

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

Rule name:	golang_duffcopy_amd64 Create hunting rule

Rule name:	Golang_Find_CSC846 Create hunting rule
Author:	Ashar Siddiqui
Description:	Find Go Signatuers

Rule name:	Golang_Find_CSC846_Simple Create hunting rule
Author:	Ashar Siddiqui
Description:	Find Go Signatuers

Rule name:	HiveRansomware Create hunting rule
Author:	Dhanunjaya
Description:	Yara Rule To Detect Hive V4 Ransomware

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	ProgramLanguage_Golang Create hunting rule
Author:	albertzsigovits
Description:	Application written in Golang programming language

Rule name:	RemusStealer_GoPayload Create hunting rule
Author:	burger
Description:	Detects RemusStealer Go-compiled payload

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

Rule name:	Suspicious_Golang_Binary Create hunting rule
Author:	Tim Machac
Description:	Triage: Golang-compiled binary with suspicious OS/persistence/network strings (not family-specific)

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

Rule name:	TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE Create hunting rule
Author:	CYFARE
Description:	Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:	https://cyfare.net/

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.