MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 308fffaaaa7a2200a82e88a8977eedf1bb792af512f84d0e4568a1f717384bdc. 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


SkuldStealer


Vendor detections: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 308fffaaaa7a2200a82e88a8977eedf1bb792af512f84d0e4568a1f717384bdc
SHA3-384 hash: 9d3317cdb1f07326c790bf2a8d9d9708d02dcd4067344bf410bb935758d93eb6eebe1f3e2fd7cc2d15b6a793d0abdc6a
SHA1 hash: 07cc0b66d5ac1e650cf7977bd4cdf02d79b826b7
MD5 hash: dafc0bfdc34dd2430cecc31a42f00ce3
humanhash: blue-georgia-purple-seventeen
File name:skuld.exe.bin
Download: download sample
Signature SkuldStealer
Create hunting rule
File size:8'066'048 bytes
First seen:2025-03-16 11:49:03 UTC
Last seen:2025-03-16 12:44:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 6ed4f5f04d62b18d96b26d6db7c18840 (237 x SalatStealer, 78 x BitRAT, 42 x RedLineStealer)
ssdeep 196608:8di6rFR+CAel997C1qDeC/svLKptYkS7ZGdzRbsPAni:wJxwxeZu2odGtRbsP9
TLSH T1808633A502D542B6DC97EAFBD1BBE443A78206C4810FAE2443ABD4D779EE75D704C8C8
TrID 63.5% (.EXE) UPX compressed Win64 Executable (70117/5/12)
24.5% (.EXE) UPX compressed Win32 Executable (27066/9/6)
4.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.8% (.ICL) Windows Icons Library (generic) (2059/9)
1.8% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter KatzenTech
Tags:exe SkuldStealer

Intelligence

File Origin
# of uploads :
2
# of downloads :
393
Origin country :
RU RU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
skuld.exe
Verdict:
Malicious activity
Analysis date:
2025-03-15 22:15:36 UTC
Tags:
discord stealer evasion skuld uac screenshot autorun-reg golang upx discordgrabber generic ims-api susp-powershell crypto-regex
Link:
https://app.any.run/tasks/438a2177-f81f-4423-ae79-46b87c9edc9f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67d6d6123962f1a6f471e564
Tags:
shell virus sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Enabling the 'hidden' option for analyzed file
Creating a file in the %AppData% subdirectories
Creating a window
Enabling the 'hidden' option for recently created files
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
crypto masquerade packed packed packed packer_detected redcap upx
Link:
https://www.filescan.io/uploads/67d6babfd2c4beeae9262403/reports/8c02f3cd-709e-4507-bbc3-2abaa7e874c4/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/308fffaaaa7a2200a82e88a8977eedf1bb792af512f84d0e4568a1f717384bdc
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:
Suspicious
Link:
https://analyze.intezer.com/analyses/03ceacbf-af9a-4ba2-93e4-fbbd0cf0530f
Result
Threat name:
Go Stealer, Skuld Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1639871
Signature
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Bypasses PowerShell execution policy
Encrypted powershell cmdline option found
Found many strings related to Crypto-Wallets (likely being stolen)
Installs new ROOT certificates
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Modifies the hosts file
Modifies Windows Defender protection settings
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Capture Wi-Fi password
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Powershell Defender Disable Scan Feature
Sigma detected: Suspicious Encoded PowerShell Command Line
Sigma detected: Suspicious PowerShell Encoded Command Patterns
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal WLAN passwords
Tries to steal communication platform credentials (via file / registry access)
Tries to steal Crypto Currency Wallets
Uses cmd line tools excessively to alter registry or file data
Uses netsh to modify the Windows network and firewall settings
Yara detected Go Stealer
Yara detected Skuld Stealer
Yara detected WIFI Password Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1639871 Sample: skuld.exe.bin.exe Startdate: 16/03/2025 Architecture: WINDOWS Score: 100 47 ip-api.com 2->47 49 discord.com 2->49 59 Antivirus / Scanner detection for submitted sample 2->59 61 Sigma detected: Capture Wi-Fi password 2->61 63 Multi AV Scanner detection for submitted file 2->63 65 10 other signatures 2->65 9 skuld.exe.bin.exe 2 73 2->9         started        14 SecurityHealthSystray.exe 2->14         started        16 SecurityHealthSystray.exe 2->16         started        18 svchost.exe 2->18         started        signatures3 process4 dnsIp5 51 ip-api.com 208.95.112.1, 49684, 80 TUT-ASUS United States 9->51 53 162.159.136.232, 443, 49690, 49691 CLOUDFLARENETUS United States 9->53 55 discord.com 162.159.138.232, 443, 49683 CLOUDFLARENETUS United States 9->55 43 C:\Users\user\...\SecurityHealthSystray.exe, PE32+ 9->43 dropped 45 C:\Windows\System32\drivers\etc\hosts, ASCII 9->45 dropped 69 Installs new ROOT certificates 9->69 71 Found many strings related to Crypto-Wallets (likely being stolen) 9->71 73 Uses cmd line tools excessively to alter registry or file data 9->73 79 10 other signatures 9->79 20 powershell.exe 23 9->20         started        23 powershell.exe 23 9->23         started        26 powershell.exe 23 9->26         started        32 10 other processes 9->32 75 Antivirus detection for dropped file 14->75 77 Multi AV Scanner detection for dropped file 14->77 28 conhost.exe 14->28         started        30 conhost.exe 16->30         started        57 127.0.0.1 unknown unknown 18->57 file6 signatures7 process8 file9 41 C:\Users\user\AppData\...\x102khox.cmdline, Unicode 20->41 dropped 34 csc.exe 20->34         started        67 Loading BitLocker PowerShell Module 23->67 signatures10 process11 file12 39 C:\Users\user\AppData\Local\...\x102khox.dll, PE32 34->39 dropped 37 cvtres.exe 34->37         started        process13
Score:
96%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/308fffaaaa7a2200a82e88a8977eedf1bb792af512f84d0e4568a1f717384bdc
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/308fffaaaa7a2200a82e88a8977eedf1bb792af512f84d0e4568a1f717384bdc/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gch77kvkpirabkborcujo7xn6g5xskxvcl4e2dsfncq7ofzyjpoa._file
Verdict:
malicious
Label(s):
skuldstealer
Create hunting rule
Similar samples:
error
SkuldStealer
Result
Malware family:
skuld
Create hunting rule
Score:
  10/10
Tags:
family:skuld credential_access defense_evasion discovery execution persistence privilege_escalation spyware stealer upx
Link:
https://tria.ge/reports/250316-ny4qpatl13/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Views/modifies file attributes
Detects videocard installed
GoLang User-Agent
Browser Information Discovery
Event Triggered Execution: Netsh Helper DLL
System Network Configuration Discovery: Wi-Fi Discovery
UPX packed file
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Obfuscated Files or Information: Command Obfuscation
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Unsecured Credentials: Credentials In Files
Command and Scripting Interpreter: PowerShell
Drops file in Drivers directory
Skuld family
Skuld stealer
Malware Config
C2 Extraction:
https://discord.com/api/webhooks/1350589532671709224/233ztPuPNWSLxXYC9q6DAZm5KeiJyP5dslAWD6TutTLgoW0mNZ5hI80l_buyg_7J6feO
Verdict:
Malicious
Tags:
trojan external_ip_lookup
YARA:
SUSP_Imphash_Mar23_3
Link:
https://app.threat.zone/submission/88f687b0-9406-4747-9328-3c424fc206ca
Unpacked files
SH256 hash:
308fffaaaa7a2200a82e88a8977eedf1bb792af512f84d0e4568a1f717384bdc
MD5 hash:
dafc0bfdc34dd2430cecc31a42f00ce3
SHA1 hash:
07cc0b66d5ac1e650cf7977bd4cdf02d79b826b7
Link:
https://www.unpac.me/results/85eee5b6-5355-495d-bea5-14b477e132bc/
SH256 hash:
18ae8b673c8dd8f7561bda36e4abe373592a3f1face3ec5b215545d7ee00f142
MD5 hash:
9a317b29eb0a0f8950e29a76ee070ddf
SHA1 hash:
d5ac157ed94ee860b11cc65a323115171836831b
Detections:
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_DiscordURL
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Crypto_Wallet_Regex
Create hunting rule
Link:
https://www.unpac.me/results/85eee5b6-5355-495d-bea5-14b477e132bc/
Parent samples :
308fffaaaa7a2200a82e88a8977eedf1bb792af512f84d0e4568a1f717384bdc
18ae8b673c8dd8f7561bda36e4abe373592a3f1face3ec5b215545d7ee00f142
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/308fffaaaa7a2200a82e88a8977eedf1bb792af512f84d0e4568a1f717384bdc

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:SUSP_Imphash_Mar23_3
Create hunting rule
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects imphash often found in malware samples (Maximum 0,25% hits with search for 'imphash:x p:0' on Virustotal) = 99,75% hits
Reference:Internal Research
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)
Rule name:upx_largefile
Create hunting rule
Author:k3nr9

File information

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

Comments