MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b21584b91faf4acb978bd265e2f827d631017f328eb49b311f156f6ba008bd83. 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


Stealc


Vendor detections: 12


Intelligence 12 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b21584b91faf4acb978bd265e2f827d631017f328eb49b311f156f6ba008bd83
SHA3-384 hash: d070dab15cbe296246ed48a54834b7fb4b0b59175d359e9aebfd962aa0b10500c843af77925529036c60b014ddceaf36
SHA1 hash: f5207f5b7b143c1fe2b4edb985efb23d85dcb884
MD5 hash: 447b432c2a27e71e1053da4d6d520222
humanhash: papa-equal-victor-neptune
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:1'787'392 bytes
First seen:2024-11-23 16:43:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep 49152:TsqQXcq7cs07ezIdJupoh+sovtV1BXhifBQ+dXvLLbGdPmn:Ves7eEjupohb+tVXKXvTWa
TLSH T1678533AB1C6440E3FC7D063DEAEF9659EB546F72B8B5166F4B8CCA40D19B880C730598
TrID 27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
20.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
18.6% (.EXE) Win32 Executable (generic) (4504/4/1)
8.5% (.ICL) Windows Icons Library (generic) (2059/9)
8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter Bitsight
Tags:exe Stealc


Avatar
Bitsight
url: http://185.215.113.16/steam/random.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
408
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-11-23 16:45:01 UTC
Tags:
stealer stealc
Link:
https://app.any.run/tasks/c20f0b21-0fe6-418f-bfd2-a70e127e9ded

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.TrojanX-gen.1820.29364.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67420760d0583382434abf84
Tags:
autorun autoit spam lien
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for analyzing tools
Searching for the window
Running batch commands
Creating a process with a hidden window
Launching a process
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b21584b91faf4acb978bd265e2f827d631017f328eb49b311f156f6ba008bd83
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/3760840a-161c-4e00-aaea-cc75031f3f8d
Result
Threat name:
Amadey, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1561533
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Attempt to bypass Chrome Application-Bound Encryption
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Drops PE files to the document folder of the user
Drops PE files to the user root directory
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
Machine Learning detection for dropped file
Machine Learning detection for sample
PE file contains section with special chars
Suricata IDS alerts for network traffic
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Tries to evade debugger and weak emulator (self modifying code)
Tries to harvest and steal Bitcoin Wallet information
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 Mail credentials (via file / registry access)
Yara detected Amadeys stealer DLL
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1561533 Sample: file.exe Startdate: 23/11/2024 Architecture: WINDOWS Score: 100 72 Suricata IDS alerts for network traffic 2->72 74 Found malware configuration 2->74 76 Antivirus detection for URL or domain 2->76 78 11 other signatures 2->78 8 file.exe 36 2->8         started        13 skotes.exe 2->13         started        15 skotes.exe 15 2->15         started        17 skotes.exe 2->17         started        process3 dnsIp4 54 185.215.113.206, 49730, 49745, 49757 WHOLESALECONNECTIONSNL Portugal 8->54 56 185.215.113.16, 49756, 80 WHOLESALECONNECTIONSNL Portugal 8->56 58 127.0.0.1 unknown unknown 8->58 38 C:\Users\user\DocumentsDHCFIDAKJD.exe, PE32 8->38 dropped 40 C:\Users\user\AppData\...\softokn3[1].dll, PE32 8->40 dropped 42 C:\Users\user\AppData\Local\...\random[1].exe, PE32 8->42 dropped 48 11 other files (7 malicious) 8->48 dropped 88 Detected unpacking (changes PE section rights) 8->88 90 Attempt to bypass Chrome Application-Bound Encryption 8->90 92 Drops PE files to the document folder of the user 8->92 106 9 other signatures 8->106 19 cmd.exe 1 8->19         started        21 chrome.exe 8->21         started        94 Antivirus detection for dropped file 13->94 96 Tries to detect sandboxes and other dynamic analysis tools (window names) 13->96 98 Machine Learning detection for dropped file 13->98 60 185.215.113.43, 49898, 49906, 80 WHOLESALECONNECTIONSNL Portugal 15->60 62 31.41.244.11, 49910, 80 AEROEXPRESS-ASRU Russian Federation 15->62 44 C:\Users\user\AppData\...\804e4a2fb7.exe, PE32 15->44 dropped 46 C:\Users\user\AppData\Local\...\random[1].exe, PE32 15->46 dropped 100 Hides threads from debuggers 15->100 102 Tries to detect sandboxes / dynamic malware analysis system (registry check) 15->102 104 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 15->104 file5 signatures6 process7 dnsIp8 24 DocumentsDHCFIDAKJD.exe 4 19->24         started        28 conhost.exe 19->28         started        50 192.168.2.4, 443, 49672, 49723 unknown unknown 21->50 52 239.255.255.250 unknown Reserved 21->52 30 chrome.exe 21->30         started        process9 dnsIp10 36 C:\Users\user\AppData\Local\...\skotes.exe, PE32 24->36 dropped 80 Antivirus detection for dropped file 24->80 82 Detected unpacking (changes PE section rights) 24->82 84 Machine Learning detection for dropped file 24->84 86 5 other signatures 24->86 33 skotes.exe 24->33         started        64 www.google.com 216.58.208.228, 443, 49733, 49734 GOOGLEUS United States 30->64 file11 signatures12 process13 signatures14 66 Hides threads from debuggers 33->66 68 Tries to detect sandboxes / dynamic malware analysis system (registry check) 33->68 70 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 33->70
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b21584b91faf4acb978bd265e2f827d631017f328eb49b311f156f6ba008bd83/
Threat name:
Win32.Spyware.Stealc
Create hunting rule
Status:
Suspicious
First seen:
2024-11-23 16:44:05 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
20 of 24 (83.33%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wikyjoi7v5fmxf4l2js6f6bh2yyqc7zsr22jwmi7cvxwxiaixwbq._file
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:cryptbot family:stealc botnet:9c9aa5 botnet:mars credential_access discovery evasion persistence spyware stealer trojan
Link:
https://tria.ge/reports/241123-t797qatrgq/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Kills process with taskkill
Modifies registry class
Modifies system certificate store
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Browser Information Discovery
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Drops file in Windows directory
AutoIT Executable
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Checks BIOS information in registry
Executes dropped EXE
Identifies Wine through registry keys
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Unsecured Credentials: Credentials In Files
Windows security modification
Downloads MZ/PE file
Uses browser remote debugging
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Amadey
Amadey family
CryptBot
Cryptbot family
Detects CryptBot payload
Modifies Windows Defender Real-time Protection settings
Stealc
Stealc family
Malware Config
C2 Extraction:
http://185.215.113.206
http://185.215.113.43
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/750d6bb0-6640-40ac-8ec4-c094eba9fa4a
Unpacked files
SH256 hash:
2fb5cf2f13e31b846a13b3cc94f4c4c3858d95fa8c1072b695e5cd56bf1dea3b
MD5 hash:
cba8098ba624439597039d7731ccd857
SHA1 hash:
c8e99ec78d933b64a09ba494ad31f9e7537c6b50
Detections:
win_stealc_w0
Create hunting rule
win_stealc_a0
Create hunting rule
Link:
https://www.unpac.me/results/9352d2ff-03de-4ebe-a8e8-65ef278aef10/
SH256 hash:
b21584b91faf4acb978bd265e2f827d631017f328eb49b311f156f6ba008bd83
MD5 hash:
447b432c2a27e71e1053da4d6d520222
SHA1 hash:
f5207f5b7b143c1fe2b4edb985efb23d85dcb884
Link:
https://www.unpac.me/results/9352d2ff-03de-4ebe-a8e8-65ef278aef10/
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/b21584b91faf4acb978bd265e2f827d631017f328eb49b311f156f6ba008bd83

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: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

Stealc

Executable exe b21584b91faf4acb978bd265e2f827d631017f328eb49b311f156f6ba008bd83

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3284801/
  
URLhaus
https://urlhaus.abuse.ch/url/3273391/
  
URLhaus
https://urlhaus.abuse.ch/url/3079150/
  
URLhaus
https://urlhaus.abuse.ch/url/3279845/

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 (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical

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