MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6bf4612c1b4d71558e998e0761e3e4b4481c89ae3827622e86a81f46c08d7332. 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: 16


Intelligence 16 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6bf4612c1b4d71558e998e0761e3e4b4481c89ae3827622e86a81f46c08d7332
SHA3-384 hash: e869ae44ed9b149ce6775c23efbdc1a6c37d2719bbe3c77ee4e7300fd2f5b1dd451f63d2d8b90dc381702faad84a3b62
SHA1 hash: 1d0d10896ee940549c1b70ac512935e1179932d2
MD5 hash: de1f91ae5c55b1cbbc6d6561464d7d99
humanhash: nuts-four-cardinal-lithium
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:2'516'992 bytes
First seen:2024-07-06 04:26:17 UTC
Last seen:2024-07-06 07:08:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 49152:64sA0BKouGhK3oQOTzKDEpUROst1tNN5kFofRVQ+p1kEW/f1xyjN6i:1sI2hF7zKgiOstKuQ+pWE8fW56i
Threatray 86 similar samples on MalwareBazaar
TLSH T1B3C533576A0437D4C8C930F3D27E691CBA53EC6D958074BA984BDCB2EB0705273ACA2D
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)
Reporter Bitsight
Tags:exe Stealc


Avatar
Bitsight
url: http://77.91.77.81/stealc/random.exe

Intelligence

File Origin
# of uploads :
6
# of downloads :
474
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6bf4612c1b4d71558e998e0761e3e4b4481c89ae3827622e86a81f46c08d7332.exe
Verdict:
Malicious activity
Analysis date:
2024-07-06 04:27:28 UTC
Tags:
stealer stealc
Link:
https://app.any.run/tasks/37679988-7bfd-4bdd-a752-e8ff9d316c78

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
PUA.Win.Packer.EnigmaProtector-9852682-0
Create hunting rule

Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6688c8de3b2ddaaafa497153win10vpnfull_triage
Tags:
Generic Infostealer Network Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
enigma lolbin microsoft_visual_cc packed packed shell32
Link:
https://www.filescan.io/uploads/6688c79626c925aa13a72257/reports/ec220be9-0154-4ac8-a933-d08117a26a3d/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/6bf4612c1b4d71558e998e0761e3e4b4481c89ae3827622e86a81f46c08d7332
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/89ede21c-a90d-4082-9688-80a67db4ae73
Result
Threat name:
Amadey, Mars Stealer, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1468484
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
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
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
Potentially malicious time measurement code found
Sample uses string decryption to hide its real strings
Snort IDS alert 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 Mars stealer
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1468484 Sample: file.exe Startdate: 06/07/2024 Architecture: WINDOWS Score: 100 48 Snort IDS alert for network traffic 2->48 50 Multi AV Scanner detection for domain / URL 2->50 52 Found malware configuration 2->52 54 15 other signatures 2->54 8 file.exe 36 2->8         started        13 explorti.exe 12 2->13         started        15 explorti.exe 2->15         started        process3 dnsIp4 42 85.28.47.30, 49730, 80 GES-ASRU Russian Federation 8->42 44 77.91.77.81, 49731, 80 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 8->44 34 C:\Users\user\AppData\...\JJECGCBGDB.exe, PE32 8->34 dropped 36 C:\Users\user\AppData\...\softokn3[1].dll, PE32 8->36 dropped 38 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 8->38 dropped 40 11 other files (7 malicious) 8->40 dropped 64 Detected unpacking (changes PE section rights) 8->64 66 Tries to steal Mail credentials (via file / registry access) 8->66 68 Found many strings related to Crypto-Wallets (likely being stolen) 8->68 76 4 other signatures 8->76 17 cmd.exe 1 8->17         started        19 cmd.exe 2 8->19         started        46 77.91.77.82, 49744, 49745, 49746 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 13->46 70 Hides threads from debuggers 13->70 72 Tries to detect sandboxes / dynamic malware analysis system (registry check) 13->72 74 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 13->74 file5 signatures6 process7 process8 21 JJECGCBGDB.exe 4 17->21         started        25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        file9 32 C:\Users\user\AppData\Local\...\explorti.exe, PE32 21->32 dropped 56 Antivirus detection for dropped file 21->56 58 Detected unpacking (changes PE section rights) 21->58 60 Machine Learning detection for dropped file 21->60 62 6 other signatures 21->62 29 explorti.exe 21->29         started        signatures10 process11 signatures12 78 Antivirus detection for dropped file 29->78 80 Detected unpacking (changes PE section rights) 29->80 82 Tries to detect sandboxes and other dynamic analysis tools (window names) 29->82 84 5 other signatures 29->84
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6bf4612c1b4d71558e998e0761e3e4b4481c89ae3827622e86a81f46c08d7332
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6bf4612c1b4d71558e998e0761e3e4b4481c89ae3827622e86a81f46c08d7332/
Threat name:
Win32.Trojan.Stealerc
Create hunting rule
Status:
Malicious
First seen:
2024-07-06 04:27:08 UTC
File Type:
PE (Exe)
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=np2gcla3jvyvlduzrydwdy7ewrebzcnohatwelugvapunqenomza._file
Verdict:
malicious
Similar samples:
31cbdcdb540d6bc6fbc616c288f6f7ad7c74fe74eff55a135dafc31853b76126
Stealc
441f614bb8a71a458b9f8274f807c33550d0a91304b7b1bc25c23c6cd8d9b616
Stealc
60d7123cafb385bba287360f90d6f682c6397f8feb030ac0d36f4473b779ab3c
Stealc
6bf4612c1b4d71558e998e0761e3e4b4481c89ae3827622e86a81f46c08d7332
Stealc
8e7963520355e4078e56aa0cbb4b38d6ca934a05ae11005a396ff917991116ff
Stealc
9f5b516487cc6c3218efb06cb2ebcc72ce724dc64aa84d217464af873c048b7a
Stealc
d06e1fd08af8234eb7d356343329905327126518eea8bee8e00f10aeaf7d3a09
Stealc
+ 76 additional samples on MalwareBazaar
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:stealc botnet:4dd39d botnet:nice discovery evasion spyware stealer trojan
Link:
https://tria.ge/reports/240706-e234wsyamh/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks BIOS information in registry
Checks computer location settings
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
Downloads MZ/PE file
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Amadey
Stealc
Malware Config
C2 Extraction:
http://85.28.47.30
http://77.91.77.82
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8804c08c-46e1-4e94-95dd-4969c06844b5
Unpacked files
SH256 hash:
6bf4612c1b4d71558e998e0761e3e4b4481c89ae3827622e86a81f46c08d7332
MD5 hash:
de1f91ae5c55b1cbbc6d6561464d7d99
SHA1 hash:
1d0d10896ee940549c1b70ac512935e1179932d2
Link:
https://www.unpac.me/results/9bd90183-cd41-4de7-a835-32d3dcc2805e/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6bf4612c1b4d/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/6bf4612c1b4d71558e998e0761e3e4b4481c89ae3827622e86a81f46c08d7332

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:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)

File information

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

Web download

Stealc

Executable exe 6bf4612c1b4d71558e998e0761e3e4b4481c89ae3827622e86a81f46c08d7332

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2920704/
  
URLhaus
https://urlhaus.abuse.ch/url/2909131/
  
URLhaus
https://urlhaus.abuse.ch/url/2909129/
  
URLhaus
https://urlhaus.abuse.ch/url/2934723/
  
URLhaus
https://urlhaus.abuse.ch/url/2934724/
  
URLhaus
https://urlhaus.abuse.ch/url/2908698/

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
Reviews
IDCapabilitiesEvidence
SHELL_APIManipulates System Shellshell32.dll::ShellExecuteA
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryA
WIN_BASE_IO_APICan Create Filesversion.dll::GetFileVersionInfoA

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