MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb. 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 10 File information Comments 1

SHA256 hash: 6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb
SHA3-384 hash: 146745e18e1d757dc1a8d3a386341ff5e7c5653fd0ce3bbc7297a3d34cb2b6883834c0861db78c4c7256eeac44a23f49
SHA1 hash: 6c612523c12cd2a0e71deb7114427f6656cd58dc
MD5 hash: cf267f31af942869a51ff10d3cadb637
humanhash: leopard-gee-green-nebraska
File name:cf267f31af942869a51ff10d3cadb637
Download: download sample
Signature Stealc
File size:223'232 bytes
First seen:2024-04-04 10:32:04 UTC
Last seen:2024-04-04 11:32:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f1810405e774d79f2c3be9d1af5f946b (3 x Stealc, 1 x Smoke Loader, 1 x LummaStealer)
ssdeep 3072:qUBTqPKGYOrEQAQB0fzahcaFnztzmrl9JrMw9ja2bwiOp:qKqPKGYOrEzQBXtnzsr54w9j/bwiO
TLSH T13F24BF5176E0C436E4A3593048B5C6915AFBBC626A77508BF3942B7E6E733C04EF9322
TrID 37.3% (.EXE) Win64 Executable (generic) (10523/12/4)
17.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
15.9% (.EXE) Win32 Executable (generic) (4504/4/1)
7.3% (.ICL) Windows Icons Library (generic) (2059/9)
7.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 5bb27e626a32530a (4 x Stealc)
Reporter zbetcheckin
Tags:32 exe Stealc

Intelligence


File Origin
# of uploads :
2
# of downloads :
303
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb.exe
Verdict:
Malicious activity
Analysis date:
2024-04-04 10:35:32 UTC
Tags:
stealer stealc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Connection attempt to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint
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:
Mars Stealer, Stealc, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Searches for specific processes (likely to inject)
Snort IDS alert for network traffic
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)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected Mars stealer
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1420079 Sample: gVnbOPz4F2.exe Startdate: 04/04/2024 Architecture: WINDOWS Score: 100 46 Snort IDS alert for network traffic 2->46 48 Multi AV Scanner detection for domain / URL 2->48 50 Found malware configuration 2->50 52 11 other signatures 2->52 9 gVnbOPz4F2.exe 78 2->9         started        process3 dnsIp4 40 185.172.128.26, 49699, 80 NADYMSS-ASRU Russian Federation 9->40 42 185.172.128.65, 49708, 80 NADYMSS-ASRU Russian Federation 9->42 32 C:\Users\user\AppData\...\CAAAFCAKKK.exe, PE32 9->32 dropped 34 C:\Users\user\AppData\...\softokn3[1].dll, PE32 9->34 dropped 36 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 9->36 dropped 38 11 other files (7 malicious) 9->38 dropped 60 Detected unpacking (changes PE section rights) 9->60 62 Detected unpacking (overwrites its own PE header) 9->62 64 Tries to steal Mail credentials (via file / registry access) 9->64 66 7 other signatures 9->66 14 cmd.exe 1 9->14         started        17 WerFault.exe 22 16 9->17         started        file5 signatures6 process7 signatures8 68 Uses ping.exe to sleep 14->68 70 Uses ping.exe to check the status of other devices and networks 14->70 19 CAAAFCAKKK.exe 5 14->19         started        22 conhost.exe 14->22         started        process9 signatures10 54 Antivirus detection for dropped file 19->54 56 Multi AV Scanner detection for dropped file 19->56 24 cmd.exe 1 19->24         started        process11 signatures12 58 Uses ping.exe to sleep 24->58 27 PING.EXE 1 24->27         started        30 conhost.exe 24->30         started        process13 dnsIp14 44 2.2.2.2 FranceTelecom-OrangeFR France 27->44
Threat name:
Win32.Trojan.Privateloader
Status:
Malicious
First seen:
2024-04-04 10:33:07 UTC
File Type:
PE (Exe)
Extracted files:
19
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:stealc discovery spyware stealer
Behaviour
Checks processor information in registry
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Stealc
Malware Config
C2 Extraction:
http://185.172.128.26
Unpacked files
SH256 hash:
0c16bb0b841ef221b578ecdd456bfcd9938c9db5d649806f6494606fcedaa149
MD5 hash:
2fe1b7efc28d2aacc955c1c001499420
SHA1 hash:
ba809e8d95086b7a4d6da778993fd8fe4d7975bd
Detections:
stealc win_stealc_auto
SH256 hash:
6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb
MD5 hash:
cf267f31af942869a51ff10d3cadb637
SHA1 hash:
6c612523c12cd2a0e71deb7114427f6656cd58dc
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:detect_Mars_Stealer
Author:@malgamy12
Description:detect_Mars_Stealer
Rule name:infostealer_win_stealc_standalone
Description:Find standalone Stealc sample based on decryption routine or characteristic strings
Reference:https://blog.sekoia.io/stealc-a-copycat-of-vidar-and-raccoon-infostealers-gaining-in-popularity-part-1/
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:malware_Stealc_str
Author:JPCERT/CC Incident Response Group
Description:Stealc infostealer
Rule name:Windows_Trojan_Generic_2993e5a5
Author:Elastic Security
Rule name:Windows_Trojan_Stealc_b8ab9ab5
Author:Elastic Security
Rule name:win_stealc_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stealc.
Rule name:win_stealc_w0
Author:crep1x
Description:Find standalone Stealc sample based on decryption routine or characteristic strings
Reference:https://blog.sekoia.io/stealc-a-copycat-of-vidar-and-raccoon-infostealers-gaining-in-popularity-part-1/

File information


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

Web download

Stealc

Executable exe 6f7aad02384477c96833be0fef115412e2dc1c05d059f40c4ec13194e8308eeb

(this sample)

  
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
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindNextVolumeMountPointW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleOutputA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetConsoleOutputCP
KERNEL32.dll::SetConsoleTitleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesLengthW
KERNEL32.dll::GetConsoleAliasExesLengthW
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileW

Comments



Avatar
zbet commented on 2024-04-04 10:32:05 UTC

url : hxxp://185.172.128.65/timeSync.exe