MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 754a70daba3fc467aa3651350fb2388c322c3f9b2eaa4c0717bdb5dc52aa4c55. 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: 14


Intelligence 14 IOCs YARA 1 File information Comments 1

SHA256 hash: 754a70daba3fc467aa3651350fb2388c322c3f9b2eaa4c0717bdb5dc52aa4c55
SHA3-384 hash: 5ffe55476201c7a332c991a204d16511595ab0b0ceaa673cd91ef7a508e087eac5168db7f1c58c91378a5eb41383bf29
SHA1 hash: 11d0f61a7f760e1e9c55b63e17482b02eb33343d
MD5 hash: c2638413c3be6732e856af39bb38302d
humanhash: princess-washington-lake-carpet
File name:c2638413c3be6732e856af39bb38302d
Download: download sample
Signature Stealc
File size:298'496 bytes
First seen:2024-05-30 01:36:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 11a300c99a9dad777a6334450047cf9e (1 x Stealc)
ssdeep 3072:kIIeYSFXmGwgqR/XagxZIKqBGOimBUlUOjHgwm5X6SjtNumh:kOYSFXmGGXZH850Ngf6S3umh
TLSH T13C540702A2E0BC55ED2A4B72DE1EC6E8675EBD708FB9675E3218BA1F44F3171C522710
TrID 46.6% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
25.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
8.5% (.EXE) Win64 Executable (generic) (10523/12/4)
5.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 40c09818908888d0 (1 x Stealc)
Reporter zbetcheckin
Tags:32 exe Stealc

Intelligence


File Origin
# of uploads :
1
# of downloads :
432
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
754a70daba3fc467aa3651350fb2388c322c3f9b2eaa4c0717bdb5dc52aa4c55.exe
Verdict:
Malicious activity
Analysis date:
2024-05-30 01:37:41 UTC
Tags:
stealer stealc loader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
Banker Encryption Execution Network Stealth Stealc Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Launching the default Windows debugger (dwwin.exe)
Searching for the window
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
epmicrosoft_visual_cc fingerprint microsoft_visual_cc stealc
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
AI detected suspicious 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)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after checking locale)
Found evasive API chain (may stop execution after checking mutex)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Found stalling execution ending in API Sleep call
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)
Yara detected Mars stealer
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1449306 Sample: mTrrZgrKOj.exe Startdate: 30/05/2024 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic 2->41 43 Multi AV Scanner detection for domain / URL 2->43 45 Found malware configuration 2->45 47 12 other signatures 2->47 7 mTrrZgrKOj.exe 69 2->7         started        process3 dnsIp4 29 185.172.128.170, 49731, 80 NADYMSS-ASRU Russian Federation 7->29 31 185.172.128.159, 49737, 80 NADYMSS-ASRU Russian Federation 7->31 21 C:\Users\user\AppData\...\DHJDAKEGDB.exe, PE32 7->21 dropped 23 C:\Users\user\AppData\Local\...\tiktok[1].exe, PE32 7->23 dropped 25 C:\Users\user\AppData\...\softokn3[1].dll, PE32 7->25 dropped 27 11 other files (7 malicious) 7->27 dropped 49 Detected unpacking (changes PE section rights) 7->49 51 Detected unpacking (overwrites its own PE header) 7->51 53 Tries to steal Mail credentials (via file / registry access) 7->53 55 7 other signatures 7->55 12 cmd.exe 1 7->12         started        14 WerFault.exe 21 16 7->14         started        file5 signatures6 process7 process8 16 DHJDAKEGDB.exe 12->16         started        19 conhost.exe 12->19         started        signatures9 33 Antivirus detection for dropped file 16->33 35 Multi AV Scanner detection for dropped file 16->35 37 Found evasive API chain (may stop execution after checking mutex) 16->37 39 Found stalling execution ending in API Sleep call 16->39
Threat name:
Win32.Trojan.Smokeloader
Status:
Malicious
First seen:
2024-05-30 01:37:05 UTC
File Type:
PE (Exe)
Extracted files:
53
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:stealc botnet:default12 discovery spyware stealer
Behaviour
Checks processor information in registry
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://185.172.128.170
Unpacked files
SH256 hash:
231cbd43f1c105fe8494d1c8f5801f250ae629288bae3bea7fddf7c84430c1a8
MD5 hash:
b7336017be8dc75ec8ea3bddb434a8c6
SHA1 hash:
9f2add480b9c46043423b7b4cd7d78bf825e3c70
Detections:
stealc win_stealc_auto
SH256 hash:
754a70daba3fc467aa3651350fb2388c322c3f9b2eaa4c0717bdb5dc52aa4c55
MD5 hash:
c2638413c3be6732e856af39bb38302d
SHA1 hash:
11d0f61a7f760e1e9c55b63e17482b02eb33343d
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

File information


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

Web download

Stealc

Executable exe 754a70daba3fc467aa3651350fb2388c322c3f9b2eaa4c0717bdb5dc52aa4c55

(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::LoadLibraryA
KERNEL32.dll::GetStartupInfoA
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleOutputA
KERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetConsoleMode
KERNEL32.dll::SetConsoleTitleA
KERNEL32.dll::SetStdHandle
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA
KERNEL32.dll::GetFileAttributesA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW

Comments



Avatar
zbet commented on 2024-05-30 01:36:32 UTC

url : hxxp://185.172.128.159/dl.php