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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6546bdb224efc722030e60a0eefba1b327094081218bcd6a597f581ab326643d. 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: 10


Intelligence 10 IOCs YARA 5 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6546bdb224efc722030e60a0eefba1b327094081218bcd6a597f581ab326643d
SHA3-384 hash: 88ca5e81af3626b43af1a6130894cb32008418ed4787566f247efd82c07ad233cfeff021a88624389faae86b26f2b397
SHA1 hash: 6bd72e53b71623df42658daac70086caf384f36c
MD5 hash: b79e49fca81275b2fffa03c1f4677b54
humanhash: alanine-skylark-twelve-oscar
File name:secondfast.exe
Download: download sample
Signature ACRStealer
Create hunting rule
File size:686'080 bytes
First seen:2026-09-14 20:52:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 896f4495ac0a41705f28699ac7040808 (1 x ACRStealer)
ssdeep 12288:hOoQkzOIn7xG+1kqSkfh9ako0zhicbfBkgUsx8T:Yy1tlSkfhMAiWfBkgBx
TLSH T1EFE401243BA944FDCD37F43E995D2401FABCE45DCA545ABF9228423A7D534E81E3CAA0
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 aachum
Tags:ACRStealer dropped-by-OffLoader exe matie-bal-club YapStealer


Avatar
iamaachum
http://startvsgame.com/secondfast.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
206
Origin country :
ES ES
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Suspicious activity
Analysis date:
2026-09-14 21:01:06 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3c43c3e6-30bf-4686-b890-365fc7f9f895

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/85498/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6aca2f70c4a1b7b477139ad8
Tags:
virus
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug microsoft_visual_cc reconnaissance
Link:
https://www.filescan.io/uploads/6aa85e7ffb9d2f6ba4f1537e/reports/061c538f-3912-4ddc-9488-48f21a7f37b7/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/6546bdb224efc722030e60a0eefba1b327094081218bcd6a597f581ab326643d
Verdict:
Unknown
File Type:
exe x64
Link:
https://opentip.kaspersky.com/6546bdb224efc722030e60a0eefba1b327094081218bcd6a597f581ab326643d/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/ae2b17b1-053f-487e-bf77-4e243b1bb189
Result
Threat name:
ACR Stealer
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1972925
Signature
Allocates memory in foreign processes
Creates a thread in another existing process (thread injection)
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Suspicious access to claude desktop data directory by non-Claude process
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Crypto Currency Wallets
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected ACR Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1972925 Sample: secondfast.exe Startdate: 14/09/2026 Architecture: WINDOWS Score: 100 29 matie-bal.club 2->29 43 Multi AV Scanner detection for submitted file 2->43 45 Yara detected ACR Stealer 2->45 47 Joe Sandbox ML detected suspicious sample 2->47 9 secondfast.exe 2->9         started        signatures3 process4 signatures5 49 Injects code into the Windows Explorer (explorer.exe) 9->49 51 Writes to foreign memory regions 9->51 53 Allocates memory in foreign processes 9->53 55 2 other signatures 9->55 12 explorer.exe 58 7 9->12 injected process6 dnsIp7 37 matie-bal.club 104.21.24.11, 443, 49698 CLOUDFLARENET-CloudflareIncUS Canada 12->37 39 150.171.28.12, 443 MICROSOFT-CORP-MSN-AS-BLOCK-MicrosoftCorporationUS United States 12->39 41 199.232.210.172, 80 FASTLY-FastlyIncUS Canada 12->41 57 System process connects to network (likely due to code injection or exploit) 12->57 59 Tries to steal Instant Messenger accounts or passwords 12->59 61 Tries to steal Mail credentials (via file / registry access) 12->61 63 5 other signatures 12->63 16 chrome.exe 1 12->16         started        signatures8 process9 dnsIp10 25 192.168.2.16 unknown unknown 16->25 27 192.168.2.4, 138, 443, 49697 unknown unknown 16->27 19 chrome.exe 16->19         started        process11 dnsIp12 31 mobile-gtalk.l.google.com 142.250.141.188, 49736, 5228 GOOGLE-GoogleLLCUS United States 19->31 33 www.google.com 142.251.152.119, 443, 49708, 49715 GOOGLE-GoogleLLCUS United States 19->33 35 4 other IPs or domains 19->35 23 Chrome Cache Entry: 171, PDP-11 19->23 dropped file13
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6546bdb224efc722030e60a0eefba1b327094081218bcd6a597f581ab326643d
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/b79e49fca81275b2fffa03c1f4677b54
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6546bdb224efc722030e60a0eefba1b327094081218bcd6a597f581ab326643d/
Threat name:
Win64.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-09-14 20:53:22 UTC
File Type:
PE+ (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mvdl3mre57dseayomcqo565bwmtqsqebegf422szp5mbvmzgmq6q._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
discovery spyware
Link:
https://tria.ge/reports/260914-zntcravwb1/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Browser Information Discovery
System Time Discovery
Drops file in Program Files directory
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Unpacked files
SH256 hash:
6546bdb224efc722030e60a0eefba1b327094081218bcd6a597f581ab326643d
MD5 hash:
b79e49fca81275b2fffa03c1f4677b54
SHA1 hash:
6bd72e53b71623df42658daac70086caf384f36c
Link:
https://www.unpac.me/results/6f55581f-992c-4f33-a3d5-a2bf354224d0/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6546bdb224ef/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/6546bdb224efc722030e60a0eefba1b327094081218bcd6a597f581ab326643d

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Create hunting rule
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.

File information

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

Web download

ACRStealer

Executable exe 6546bdb224efc722030e60a0eefba1b327094081218bcd6a597f581ab326643d

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/85498/
  
URLhaus
https://urlhaus.abuse.ch/url/3916034/

Comments


Avatar
commented on 2026-10-13 22:22:12 UTC

Warden Stealer loader (the stealer is embedded in .rdata as rotated-alphabet Base64 + LZSS and was rebuilt statically). Family as named by Gen Digital on 2026-10-08; tagged YapStealer here. Control servers read statically from the stealer's XOR-encoded records: matie-bal.club, culture-shock.club, kaliop-weda.club, systemformating.rest. Not executed and servers not contacted by us. Method and tool: https://github.com/dominion2/reverse-engineering-and-malware-analysis/blob/master/report/warden-stealer-static-unpacking.md