MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482. 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: 15


Intelligence 15 IOCs YARA 12 File information Comments 1

SHA256 hash: 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482
SHA3-384 hash: affd8763f22de7ce643a00a04143f2b2a8d44757741280497ff72dc3cbcd6386aba4efd959e997349aa665a654ad5c4f
SHA1 hash: 77d2ddc8fe67a720b75fd4027d143018f8c08791
MD5 hash: d2a38a71e3577e4fbb4185b4ee935376
humanhash: twenty-romeo-oscar-july
File name:d2a38a71e3577e4fbb4185b4ee935376
Download: download sample
Signature Stealc
File size:1'784'116 bytes
First seen:2024-03-11 06:19:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 187b3ae62ff818788b8c779ef7bc3d1c (14 x Stealc, 1 x GCleaner)
ssdeep 49152:J60SmMKCWrpP2g/NXrHTvOy3YuaqaI0THZqNPbmvrKLlDqKz:40sKCEPLRrHTG0aq6ZZklDXz
Threatray 21 similar samples on MalwareBazaar
TLSH T10E8523086492ECA2DE8B0D74C957E5FE5910BC24C604EA47EFD13E67B476FFA058A306
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon b1f86878eaa68ac4 (1 x Stealc)
Reporter zbetcheckin
Tags:32 exe Stealc

Intelligence


File Origin
# of uploads :
1
# of downloads :
358
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482.exe
Verdict:
Malicious activity
Analysis date:
2024-03-11 06:26:09 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
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Creating a window
Сreating synchronization primitives
Connecting to a non-recommended domain
Connection attempt
Sending an HTTP GET request
Searching for synchronization primitives
Reading critical registry keys
Searching for the window
Creating a file in the %AppData% subdirectories
Running batch commands
Creating a process with a hidden window
Launching a process
Changing a file
Launching the default Windows debugger (dwwin.exe)
Connection attempt to an infection source
Stealing user critical data
Sending an HTTP GET request to an infection source
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
installer lolbin overlay 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:
Mars Stealer, Stealc, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
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 malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for dropped file
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected Mars stealer
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1406335 Sample: O033afCERg.exe Startdate: 11/03/2024 Architecture: WINDOWS Score: 100 50 Snort IDS alert for network traffic 2->50 52 Multi AV Scanner detection for domain / URL 2->52 54 Found malware configuration 2->54 56 8 other signatures 2->56 8 O033afCERg.exe 1 34 2->8         started        process3 dnsIp4 44 185.172.128.90, 49729, 80 NADYMSS-ASRU Russian Federation 8->44 46 185.172.128.187, 49731, 80 NADYMSS-ASRU Russian Federation 8->46 30 C:\Users\user\AppData\Local\...\syncUpd.exe, PE32 8->30 dropped 32 C:\Users\user\AppData\Local\...\INetC.dll, PE32 8->32 dropped 34 C:\Users\user\AppData\...\BroomSetup.exe, PE32 8->34 dropped 12 syncUpd.exe 75 8->12         started        17 BroomSetup.exe 2 5 8->17         started        file5 process6 dnsIp7 48 185.172.128.145, 49730, 80 NADYMSS-ASRU Russian Federation 12->48 36 C:\Users\user\AppData\...\softokn3[1].dll, PE32 12->36 dropped 38 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 12->38 dropped 40 C:\Users\user\AppData\...\mozglue[1].dll, PE32 12->40 dropped 42 9 other files (5 malicious) 12->42 dropped 60 Detected unpacking (changes PE section rights) 12->60 62 Detected unpacking (overwrites its own PE header) 12->62 64 Tries to steal Mail credentials (via file / registry access) 12->64 68 8 other signatures 12->68 19 WerFault.exe 21 16 12->19         started        66 Multi AV Scanner detection for dropped file 17->66 21 cmd.exe 1 17->21         started        file8 signatures9 process10 signatures11 58 Uses schtasks.exe or at.exe to add and modify task schedules 21->58 24 conhost.exe 21->24         started        26 schtasks.exe 1 21->26         started        28 chcp.com 1 21->28         started        process12
Threat name:
Win32.Trojan.StealC
Status:
Malicious
First seen:
2024-03-11 06:20:11 UTC
File Type:
PE (Exe)
Extracted files:
191
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery spyware stealer upx
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
UPX packed file
Downloads MZ/PE file
Unpacked files
SH256 hash:
8ff4e509a48d6cbcff5d325fc08ab97f37f69e5fa36fad427216b38545941661
MD5 hash:
7faf9f4744ac9a3680a6ea32ab352138
SHA1 hash:
4ec9a4769b6dccbb1a6017d08a36effc0117abe2
SH256 hash:
2d5d89025911e2e273f90f393624be4819641dbee1606de792362e442e54612f
MD5 hash:
2b342079303895c50af8040a91f30f71
SHA1 hash:
b11335e1cb8356d9c337cb89fe81d669a69de17e
SH256 hash:
47bccced008024236587fbe59d8419a52888f7b50b01cc6c7dc92101a0885607
MD5 hash:
54e0220b6f9b4f8f64382b71c6033595
SHA1 hash:
1f599189588a7a174a6b8a4587ae0df5c15bdd6f
SH256 hash:
e5b3f917cb7eaae1f35bcc51f05a7f81b03802531253eecd065140a2b3b3cc54
MD5 hash:
83a0befe72b19423f16755d36a16b1ac
SHA1 hash:
5d10e083e35324ae2cc24cf7ee3f733abc73400d
SH256 hash:
0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482
MD5 hash:
d2a38a71e3577e4fbb4185b4ee935376
SHA1 hash:
77d2ddc8fe67a720b75fd4027d143018f8c08791
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:Borland
Author:malware-lu
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:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Author:malware-lu
Rule name:UPXv20MarkusLaszloReiser
Author:malware-lu
Rule name:Windows_Trojan_Smokeloader_3687686f
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 0fb249f0b6ea12a9a7e101f8e92cb6708b2c0fbf9de2ce0e88be4d84bf9b3482

(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
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteA
SHELL32.dll::SHFileOperationA
SHELL32.dll::SHGetFileInfoA
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExA
KERNEL32.dll::GetDiskFreeSpaceA
KERNEL32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileA
KERNEL32.dll::CreateDirectoryA
KERNEL32.dll::CreateFileA
KERNEL32.dll::DeleteFileA
KERNEL32.dll::MoveFileA
ADVAPI32.dll::SetFileSecurityA
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExA
ADVAPI32.dll::RegDeleteKeyA
ADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegQueryValueExA
ADVAPI32.dll::RegSetValueExA
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuA
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExA
USER32.dll::OpenClipboard
USER32.dll::PeekMessageA
USER32.dll::CreateWindowExA

Comments



Avatar
zbet commented on 2024-03-11 06:19:17 UTC

url : hxxp://185.172.128.126/InstallSetup7.exe