MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 05e50491b89a4e5b1e7911493ee25c051080158dd921dc6dd4911154f921acfe. 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 9 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 05e50491b89a4e5b1e7911493ee25c051080158dd921dc6dd4911154f921acfe
SHA3-384 hash: 9bfd53bd0bc115e16d46d8b9c556669e60f4aab7dbd6be4ae862955a4d7a1f831de8402b21cfd352b41161895be61ad7
SHA1 hash: a91895f43abd2721cef72b6668952ed5acd1df6b
MD5 hash: cd904dad81a42d1bf025d4093951e0e5
humanhash: fanta-robert-failed-mike
File name:cd904dad81a42d1bf025d4093951e0e5
Download: download sample
Signature Stealc
Create hunting rule
File size:322'560 bytes
First seen:2024-03-22 15:51:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b4904df65844c64eb772fc58b1bf956e (1 x Stealc, 1 x Rhadamanthys, 1 x Worm.Ramnit)
ssdeep 3072:zt9bePqXEjC+lYYSEXnDR969tyUKizHW7leyty+o0DWA3Wo90PQ6CJK:znTmCqhDP690UKiq7le3U7P9ABp
TLSH T19C646C0272D3EC68E562C6328D29C5F4622EFC618D696B5733587F0F34712A39663FA1
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 0010400000000000 (1 x Stealc)
Reporter zbetcheckin
Tags:32 exe Stealc

Intelligence

File Origin
# of uploads :
1
# of downloads :
357
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
05e50491b89a4e5b1e7911493ee25c051080158dd921dc6dd4911154f921acfe.exe
Verdict:
Malicious activity
Analysis date:
2024-03-22 15:54:51 UTC
Tags:
stealer stealc
Link:
https://app.any.run/tasks/40c42cb5-b326-4594-9ca7-eac75bf740ac

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
Launching the default Windows debugger (dwwin.exe)
Searching for the window
Launching a process
Moving a file to the Program Files subdirectory
Replacing files
Connection attempt to an infection source
Gathering data
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/05e50491b89a4e5b1e7911493ee25c051080158dd921dc6dd4911154f921acfe
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.
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/94ee856b-fde6-43c4-8928-f2c7dcfbc376
Result
Threat name:
Mars Stealer, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1414147
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 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)
Self deletion via cmd or bat file
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1414147 Sample: i4DO8kMAbz.exe Startdate: 22/03/2024 Architecture: WINDOWS Score: 100 68 Snort IDS alert for network traffic 2->68 70 Found malware configuration 2->70 72 Malicious sample detected (through community Yara rule) 2->72 74 10 other signatures 2->74 9 i4DO8kMAbz.exe 78 2->9         started        14 FBFIDBFHDB.exe 2->14         started        16 FBFIDBFHDB.exe 1 3 2->16         started        process3 dnsIp4 64 185.172.128.210, 49729, 80 NADYMSS-ASRU Russian Federation 9->64 66 185.172.128.65, 49736, 80 NADYMSS-ASRU Russian Federation 9->66 54 C:\Users\user\AppData\...\FBFIDBFHDB.exe, PE32 9->54 dropped 56 C:\Users\user\AppData\...\softokn3[1].dll, PE32 9->56 dropped 58 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 9->58 dropped 60 11 other files (4 malicious) 9->60 dropped 80 Detected unpacking (changes PE section rights) 9->80 82 Detected unpacking (overwrites its own PE header) 9->82 84 Tries to steal Mail credentials (via file / registry access) 9->84 88 8 other signatures 9->88 18 cmd.exe 1 9->18         started        21 cmd.exe 1 9->21         started        23 WerFault.exe 21 16 9->23         started        86 Creates autostart registry keys with suspicious names 14->86 25 cmd.exe 14->25         started        27 cmd.exe 16->27         started        file5 signatures6 process7 signatures8 76 Uses ping.exe to sleep 18->76 78 Uses ping.exe to check the status of other devices and networks 18->78 29 FBFIDBFHDB.exe 1 4 18->29         started        32 conhost.exe 18->32         started        34 conhost.exe 21->34         started        36 timeout.exe 1 21->36         started        38 conhost.exe 25->38         started        40 PING.EXE 25->40         started        42 conhost.exe 27->42         started        44 PING.EXE 27->44         started        process9 signatures10 90 Multi AV Scanner detection for dropped file 29->90 46 cmd.exe 1 29->46         started        process11 signatures12 92 Uses ping.exe to sleep 46->92 49 PING.EXE 1 46->49         started        52 conhost.exe 46->52         started        process13 dnsIp14 62 2.2.2.2 FranceTelecom-OrangeFR France 49->62
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/05e50491b89a4e5b1e7911493ee25c051080158dd921dc6dd4911154f921acfe
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/05e50491b89a4e5b1e7911493ee25c051080158dd921dc6dd4911154f921acfe/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-03-22 14:14:55 UTC
File Type:
PE (Exe)
Extracted files:
37
AV detection:
16 of 38 (42.11%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=axsqjenytjhfwhtzcfet5ys4auiiafmn3eq5y3ouseivj6jbvt7a._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc discovery persistence spyware stealer
Link:
https://tria.ge/reports/240322-ta25vadd53/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Checks computer location settings
Deletes itself
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:
f1448fe7e9e77ee35913bb323d673eabb9ba7c9a575a968e91be2851611f9792
MD5 hash:
59bffb6be28d2f815789db9fda682650
SHA1 hash:
14effcd3e1eba6eb61c34c502b309d2c714cf9e7
Detections:
stealc
Create hunting rule
win_stealc_auto
Create hunting rule
Link:
https://www.unpac.me/results/0ba4620f-08d6-482b-84eb-7c7855fd494f/
Parent samples :
2bd79f3ea8e7650ef0547033c9526342d328caaf54d8a5cc0ab36f5f229e1704
05e50491b89a4e5b1e7911493ee25c051080158dd921dc6dd4911154f921acfe
3161e8351ef07f9062f67505f0a875924269e0098cb95075084a4f59e8c2e988
7d693aec2c1086473885ed614da672ee6e502f20a86a40201ee3997e97dc6193
b2ee593066bd494630cceeb669e286515d30efbc2b75332e88ef9fdbefb4e9a8
SH256 hash:
05e50491b89a4e5b1e7911493ee25c051080158dd921dc6dd4911154f921acfe
MD5 hash:
cd904dad81a42d1bf025d4093951e0e5
SHA1 hash:
a91895f43abd2721cef72b6668952ed5acd1df6b
Link:
https://www.unpac.me/results/0ba4620f-08d6-482b-84eb-7c7855fd494f/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/05e50491b89a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/05e50491b89a4e5b1e7911493ee25c051080158dd921dc6dd4911154f921acfe

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
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:detect_Mars_Stealer
Create hunting rule
Author:@malgamy12
Description:detect_Mars_Stealer
Rule name:infostealer_win_stealc_standalone
Create hunting rule
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
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:malware_Stealc_str
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:Stealc infostealer
Rule name:Windows_Trojan_Smokeloader_3687686f
Create hunting rule
Author:Elastic Security
Rule name:win_stealc_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stealc.
Rule name:win_stealc_w0
Create hunting rule
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 05e50491b89a4e5b1e7911493ee25c051080158dd921dc6dd4911154f921acfe

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2777316/
  
URLhaus
https://urlhaus.abuse.ch/url/2787085/
  
URLhaus
https://urlhaus.abuse.ch/url/2754939/

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
AUTH_APIManipulates User AuthorizationUSER32.dll::GetUserObjectSecurity
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindFirstVolumeMountPointW
KERNEL32.dll::SetSystemPowerState
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetVolumeInformationA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::PeekConsoleInputA
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::ReadConsoleOutputCharacterA
KERNEL32.dll::SetConsoleTextAttribute
KERNEL32.dll::SetStdHandle
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW
KERNEL32.dll::GetWindowsDirectoryA
KERNEL32.dll::RemoveDirectoryA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::QueryDosDeviceW

Comments


Avatar
zbet commented on 2024-03-22 15:51:26 UTC

url : hxxp://185.172.128.187/timeSync.exe