MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 16f299becfc9cf9a3ec4d493044fa05ed1a4641146724576510b6473c22f18e7. 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 10 File information Comments

SHA256 hash: 16f299becfc9cf9a3ec4d493044fa05ed1a4641146724576510b6473c22f18e7
SHA3-384 hash: e721737abb331db0002dbef1d099e0b63a0b510446ead2719a531d8c8126b53dde447928b0dd8381440e0561bf584b89
SHA1 hash: be2f5f293c290becb63755b15dd293a9cdac896c
MD5 hash: 454db2d0ad2f7496bd656bf9d75019c9
humanhash: mockingbird-arizona-april-hotel
File name:454db2d0ad2f7496bd656bf9d75019c9.exe
Download: download sample
Signature Stealc
File size:311'296 bytes
First seen:2024-03-21 07:40:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 6911fddb233fa8e4e7d5798f64fd8e58 (4 x Stealc, 1 x Socks5Systemz)
ssdeep 3072:uBGyqzCAD/EF+z/7uEXIeqwePtI0wt24gH4hX+djcpUuYAYvlu12XrjqOGnAG:XJEq18FIH04LrY/tnjCJ
TLSH T14B646B4335D2ECA1E46243318F6D99EC673EFC66CD659B5723C46E0F28702A0D627B62
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)
7.1% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 000424300100080d (1 x Stealc)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://185.172.128.209/3cd2b41cbde8fc9c.php

Intelligence


File Origin
# of uploads :
1
# of downloads :
342
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
00fed3aba0f9581ef2b3df7e140a5008e3f62b56b5f6feb4519032067fda0c5f.exe
Verdict:
Malicious activity
Analysis date:
2024-03-21 02:52:46 UTC
Tags:
stealer stealc loader

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

Behaviour
Сreating synchronization primitives
Connecting to a non-recommended domain
Connection attempt
Launching the default Windows debugger (dwwin.exe)
Searching for the window
Launching a process
Moving a file to the Program Files subdirectory
Replacing files
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint
Result
Threat name:
Mars Stealer, Stealc, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Creates autostart registry keys with suspicious names
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)
Sigma detected: New RUN Key Pointing to Suspicious Folder
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: 1412982 Sample: PjAA2EVl3b.exe Startdate: 21/03/2024 Architecture: WINDOWS Score: 100 60 Snort IDS alert for network traffic 2->60 62 Multi AV Scanner detection for domain / URL 2->62 64 Found malware configuration 2->64 66 11 other signatures 2->66 9 PjAA2EVl3b.exe 78 2->9         started        14 HJDBAFIECG.exe 1 3 2->14         started        16 HJDBAFIECG.exe 1 3 2->16         started        process3 dnsIp4 54 185.172.128.209, 49729, 80 NADYMSS-ASRU Russian Federation 9->54 56 185.172.128.65, 49736, 80 NADYMSS-ASRU Russian Federation 9->56 46 C:\Users\user\AppData\...\HJDBAFIECG.exe, PE32 9->46 dropped 48 C:\Users\user\AppData\...\softokn3[1].dll, PE32 9->48 dropped 50 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 9->50 dropped 52 11 other files (3 malicious) 9->52 dropped 76 Detected unpacking (changes PE section rights) 9->76 78 Detected unpacking (overwrites its own PE header) 9->78 80 Tries to steal Mail credentials (via file / registry access) 9->80 84 7 other signatures 9->84 18 cmd.exe 1 9->18         started        82 Creates autostart registry keys with suspicious names 14->82 21 cmd.exe 14->21         started        23 cmd.exe 16->23         started        file5 signatures6 process7 signatures8 68 Uses ping.exe to sleep 18->68 70 Uses ping.exe to check the status of other devices and networks 18->70 25 HJDBAFIECG.exe 1 4 18->25         started        28 conhost.exe 18->28         started        30 conhost.exe 21->30         started        32 PING.EXE 1 21->32         started        34 conhost.exe 23->34         started        36 PING.EXE 1 23->36         started        process9 signatures10 74 Multi AV Scanner detection for dropped file 25->74 38 cmd.exe 1 25->38         started        process11 signatures12 72 Uses ping.exe to sleep 38->72 41 PING.EXE 1 38->41         started        44 conhost.exe 38->44         started        process13 dnsIp14 58 2.2.2.2 FranceTelecom-OrangeFR France 41->58
Threat name:
Win32.Spyware.Stealc
Status:
Suspicious
First seen:
2024-03-21 03:00:58 UTC
File Type:
PE (Exe)
Extracted files:
30
AV detection:
23 of 36 (63.89%)
Threat level:
  2/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:stealc discovery persistence spyware stealer
Behaviour
Checks processor information in registry
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
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
Unpacked files
SH256 hash:
28a7e49221f1cfb589fe18d1e37aec52371886f3299308c6c77a2eac4faba0de
MD5 hash:
b4a1f5af8cfeeb61b3597e5d0a3d4606
SHA1 hash:
2292b4322bc8c6778c5139b8d5375ec7f2ffe2f9
Detections:
stealc win_stealc_auto
SH256 hash:
16f299becfc9cf9a3ec4d493044fa05ed1a4641146724576510b6473c22f18e7
MD5 hash:
454db2d0ad2f7496bd656bf9d75019c9
SHA1 hash:
be2f5f293c290becb63755b15dd293a9cdac896c
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:DebuggerException__SetConsoleCtrl
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_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 16f299becfc9cf9a3ec4d493044fa05ed1a4641146724576510b6473c22f18e7

(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_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationUSER32.dll::SetUserObjectSecurity
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindNextVolumeMountPointA
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetVolumeInformationA
KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::PeekConsoleInputA
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::ReadConsoleOutputCharacterA
KERNEL32.dll::SetConsoleCtrlHandler
KERNEL32.dll::SetStdHandle
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW
KERNEL32.dll::CreateFileA
KERNEL32.dll::GetWindowsDirectoryA
KERNEL32.dll::RemoveDirectoryW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::QueryDosDeviceA

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