MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6cff9733bcd32c2af2da61eab8281cd412a6d208ce6b763b783157be2901d5bd. 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


Vidar


Vendor detections: 13


Intelligence 13 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6cff9733bcd32c2af2da61eab8281cd412a6d208ce6b763b783157be2901d5bd
SHA3-384 hash: 15b4483396dc06226e74585cb69053bed3b1abee00101e6086e0656c85e563477cc2653044f640d54c10e611a987dd59
SHA1 hash: 6a1b4d3227088473c45869469b68a1737b26b90d
MD5 hash: 18e5e760b807fc2b05172215540398b3
humanhash: hot-xray-massachusetts-timing
File name:s9471.exe
Download: download sample
Signature Vidar
Create hunting rule
File size:754'176 bytes
First seen:2025-03-29 13:38:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash a0b72f709ebc465cfce6b6cf21367efe (33 x LummaStealer, 6 x Vidar, 2 x Rhadamanthys)
ssdeep 12288:oaQ9+ICJkAp0mBpehM8ppy+E4J/aDQy5b4WeZGl/GtWV3OnP3cqXoi8TMkoleH5/:cw4GBpehMjcuP5b4FtyU/oiwMTleHKLu
TLSH T1FEF4E080E16D43E0F4A591B48AA59241722375A1DA337BDF01B407B51F26AEF2F2F379
TrID 63.5% (.EXE) Win64 Executable (generic) (10522/11/4)
12.2% (.EXE) OS/2 Executable (generic) (2029/13)
12.0% (.EXE) Generic Win/DOS Executable (2002/3)
12.0% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter aachum
Tags:exe Stealc vidar


Avatar
iamaachum
http://77.90.153.244/s9471.exe

StealC Botnet: Default
StealC C2: http://77.90.153.241/612acd258782ade8.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
596
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
s9471.exe
Verdict:
Malicious activity
Analysis date:
2025-03-29 13:44:30 UTC
Tags:
stealer stealc loader
Link:
https://app.any.run/tasks/a2fa5273-9551-466c-96c7-a1337828526a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e7f90ecfd0a37f83098035
Tags:
virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Сreating synchronization primitives
Connection attempt
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/6cff9733bcd32c2af2da61eab8281cd412a6d208ce6b763b783157be2901d5bd
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/13073e33-cea7-45d2-ad4e-55f0713dee5a
Result
Threat name:
Stealc
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1651740
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
Attempt to bypass Chrome Application-Bound Encryption
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Searches for specific processes (likely to inject)
Sigma detected: Silenttrinity Stager Msbuild Activity
Suricata IDS alerts for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Writes to foreign memory regions
Yara detected Powershell download and execute
Yara detected Stealc
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1651740 Sample: s9471.exe Startdate: 29/03/2025 Architecture: WINDOWS Score: 100 42 Suricata IDS alerts for network traffic 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 8 other signatures 2->48 8 s9471.exe 2->8         started        process3 signatures4 50 Contains functionality to inject code into remote processes 8->50 52 Writes to foreign memory regions 8->52 54 Allocates memory in foreign processes 8->54 56 Injects a PE file into a foreign processes 8->56 11 MSBuild.exe 22 8->11         started        process5 dnsIp6 38 77.90.153.241, 49717, 49748, 80 RAPIDNET-DEHaunstetterStr19DE Germany 11->38 40 127.0.0.1 unknown unknown 11->40 22 C:\Users\user\AppData\...\mozglue[1].dll, PE32 11->22 dropped 24 C:\Users\user\AppData\...\freebl3[1].dll, PE32 11->24 dropped 26 C:\ProgramData\mozglue.dll, PE32 11->26 dropped 28 C:\ProgramData\freebl3.dll, PE32 11->28 dropped 58 Attempt to bypass Chrome Application-Bound Encryption 11->58 60 Tries to harvest and steal browser information (history, passwords, etc) 11->60 62 Searches for specific processes (likely to inject) 11->62 16 chrome.exe 11->16         started        file7 signatures8 process9 dnsIp10 30 192.168.2.4, 138, 443, 49608 unknown unknown 16->30 19 chrome.exe 16->19         started        process11 dnsIp12 32 plus.l.google.com 142.250.72.110, 443, 49743 GOOGLEUS United States 19->32 34 www.google.com 142.250.80.4, 443, 49729, 49732 GOOGLEUS United States 19->34 36 3 other IPs or domains 19->36
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6cff9733bcd32c2af2da61eab8281cd412a6d208ce6b763b783157be2901d5bd
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6cff9733bcd32c2af2da61eab8281cd412a6d208ce6b763b783157be2901d5bd/
Threat name:
Win64.Backdoor.Cobalt
Create hunting rule
Status:
Malicious
First seen:
2025-03-29 13:39:11 UTC
File Type:
PE+ (Exe)
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nt7zom542mwcv4w2mhvlqka42qjknuqizzvxmo3ygfl34kib2w6q._file
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:lumma family:stealc family:vidar botnet:928af183c2a2807a3c0526e8c0c9369d botnet:default credential_access discovery persistence spyware stealer
Link:
https://tria.ge/reports/250329-qx2wtat1ex/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Enumerates system info in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Drops startup file
Executes dropped EXE
Loads dropped DLL
Unsecured Credentials: Credentials In Files
Downloads MZ/PE file
Uses browser remote debugging
Detect Vidar Stealer
Lumma Stealer, LummaC
Lumma family
Stealc
Stealc family
Vidar
Vidar family
Malware Config
C2 Extraction:
http://77.90.153.241
https://t.me/lw25chm
https://steamcommunity.com/profiles/76561199839170361
https://wxayfarer.live/ALosnz
https://byteplusx.digital/aXweAX
https://travewlio.shop/ZNxbHi
https://skynetxc.live/AksoPA
https://pixtreev.run/LkaUz
https://advennture.top/GKsiio
https://atargett.top/dsANGt
https://70sparkiob.digital/KeASUp
https://appgridn.live/LEjdAK
Verdict:
Suspicious
Tags:
stealc stealer
YARA:
n/a
Link:
https://app.threat.zone/submission/3dfdfe46-4f06-4e9f-af17-584ae628310b
Unpacked files
SH256 hash:
6cff9733bcd32c2af2da61eab8281cd412a6d208ce6b763b783157be2901d5bd
MD5 hash:
18e5e760b807fc2b05172215540398b3
SHA1 hash:
6a1b4d3227088473c45869469b68a1737b26b90d
Link:
https://www.unpac.me/results/066a7014-3437-4a91-835a-40b37caa31fe/
Malware family:
CryptBot
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6cff9733bcd3/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/6cff9733bcd32c2af2da61eab8281cd412a6d208ce6b763b783157be2901d5bd

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:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Web download

Vidar

Executable exe 6cff9733bcd32c2af2da61eab8281cd412a6d208ce6b763b783157be2901d5bd

(this sample)

  
Link
https://tria.ge/250329-qh43mavq15/behavioral1
  
Dropped by
Amadey
  
Delivery method
Distributed via web download

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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThreadpoolWork
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileW

Comments