MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13. 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

SHA256 hash: bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13
SHA3-384 hash: 987c3118f716f570f957c124193b03b47ea2abcba41168622f2f779f704cff5588aaaf911221b17a6ccbb16ebac0e63d
SHA1 hash: 24523818e79c6ccc38c90de912743552e98be2be
MD5 hash: f7f2373c7005d9978782be75bef6a1c4
humanhash: potato-friend-monkey-carolina
File name:file
Download: download sample
Signature Stealc
File size:2'465'792 bytes
First seen:2024-07-03 21:57:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 49152:IK08+UO8Ajkw2s5uNuuiV/0H31F7AqxxJ/PgWAOEIm9B1:/V+UTwDl5eiGXPNxxJQxIm
TLSH T1F1B533C2D048634EEA306DB101F93B8F5BE5036A1137CB1ADEB572D9E9AB3578309719
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 :
1
# of downloads :
368
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe
Verdict:
Malicious activity
Analysis date:
2024-07-03 21:58:20 UTC
Tags:
stealer stealc loader antivm amadey botnet themida

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
Execution Generic Infostealer Network Stealth Trojan Zpack
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
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.
Result
Threat name:
Amadey, Mars Stealer, Stealc, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
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 dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1467271 Sample: file.exe Startdate: 03/07/2024 Architecture: WINDOWS Score: 100 64 Snort IDS alert for network traffic 2->64 66 Found malware configuration 2->66 68 Antivirus detection for URL or domain 2->68 70 15 other signatures 2->70 9 file.exe 36 2->9         started        14 explorti.exe 2->14         started        process3 dnsIp4 50 85.28.47.4, 49730, 49745, 80 GES-ASRU Russian Federation 9->50 52 77.91.77.81, 49732, 49744, 80 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 9->52 38 C:\Users\user\AppData\...\KKKJKEBKFC.exe, PE32 9->38 dropped 40 C:\Users\user\AppData\...\softokn3[1].dll, PE32 9->40 dropped 42 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 9->42 dropped 44 11 other files (7 malicious) 9->44 dropped 80 Detected unpacking (changes PE section rights) 9->80 82 Tries to steal Mail credentials (via file / registry access) 9->82 84 Found many strings related to Crypto-Wallets (likely being stolen) 9->84 92 4 other signatures 9->92 16 cmd.exe 1 9->16         started        18 cmd.exe 2 9->18         started        86 Hides threads from debuggers 14->86 88 Tries to detect sandboxes / dynamic malware analysis system (registry check) 14->88 90 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 14->90 file5 signatures6 process7 process8 20 KKKJKEBKFC.exe 4 16->20         started        24 conhost.exe 16->24         started        26 conhost.exe 18->26         started        file9 36 C:\Users\user\AppData\Local\...\explorti.exe, PE32 20->36 dropped 72 Antivirus detection for dropped file 20->72 74 Detected unpacking (changes PE section rights) 20->74 76 Machine Learning detection for dropped file 20->76 78 5 other signatures 20->78 28 explorti.exe 16 20->28         started        signatures10 process11 dnsIp12 54 77.91.77.82, 49743, 49746, 49747 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 28->54 46 C:\Users\user\AppData\...\2e80f9dd27.exe, PE32 28->46 dropped 48 C:\Users\user\AppData\Local\...\random[1].exe, PE32 28->48 dropped 94 Antivirus detection for dropped file 28->94 96 Detected unpacking (changes PE section rights) 28->96 98 Tries to detect sandboxes and other dynamic analysis tools (window names) 28->98 100 5 other signatures 28->100 33 2e80f9dd27.exe 12 28->33         started        file13 signatures14 process15 signatures16 56 Antivirus detection for dropped file 33->56 58 Multi AV Scanner detection for dropped file 33->58 60 Detected unpacking (changes PE section rights) 33->60 62 2 other signatures 33->62
Threat name:
Win32.Trojan.Stealerc
Status:
Malicious
First seen:
2024-07-03 21:58:12 UTC
File Type:
PE (Exe)
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:stealc botnet:jony discovery stealer
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks installed software on the system
Stealc
Malware Config
C2 Extraction:
http://85.28.47.4
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13
MD5 hash:
f7f2373c7005d9978782be75bef6a1c4
SHA1 hash:
24523818e79c6ccc38c90de912743552e98be2be
Please note that we are no longer able to provide a coverage score for Virus Total.

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
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 bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13

(this sample)

  
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 (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

Comments