MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c5cdfdb1871c9aa01be0c89519c25b4846e92a07143594f1986e7911e34cbfe. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3c5cdfdb1871c9aa01be0c89519c25b4846e92a07143594f1986e7911e34cbfe
SHA3-384 hash: 5d6c7a1d807ffb42240c62cf39de68ee1e27cafa55acc4aae98d92a701fc54254fcbee847ed3b8b5dbf5594780212b8e
SHA1 hash: 1ec8a5609687d5aecc9a95a6c73c39411ab6f7af
MD5 hash: fd893e6856f997c9f4dccd4f0336ea8f
humanhash: jupiter-iowa-yankee-winner
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:243'200 bytes
First seen:2024-03-14 10:28:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ab00fc25030b2de9ad9e70ad3ea552e1 (1 x Smoke Loader, 1 x Stealc, 1 x GCleaner)
ssdeep 3072:vALu9lZLL5oeIvzYNKTa6k51X5WwZb8oBDwVu0SPr91u368:IMZLL5oVA1JdS4xbu3P
Threatray 19 similar samples on MalwareBazaar
TLSH T1B234AF0136EDA8E1F3A719304976DAA05629B8D1BF31516F224537DF1FF0EB089663B2
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 3370ecd2ccf0339a (9 x Stealc, 9 x LummaStealer, 3 x Socks5Systemz)
Reporter Bitsight
Tags:exe Stealc


Avatar
Bitsight
url: http://185.172.128.187/timeSync.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
371
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
3c5cdfdb1871c9aa01be0c89519c25b4846e92a07143594f1986e7911e34cbfe.exe
Verdict:
Malicious activity
Analysis date:
2024-03-14 10:30:07 UTC
Tags:
stealer stealc
Link:
https://app.any.run/tasks/eaef5a4d-8736-49e8-8acc-da58de915df8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/479014/
Detection(s):
Win.Dropper.Tofsee-10023347-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file
Reading critical registry keys
Changing a file
Creating a file in the %AppData% subdirectories
Creating a window
Connecting to a non-recommended domain
Connection attempt
Sending an HTTP GET request
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Creating a process from a recently created file
Launching a process
Launching the default Windows debugger (dwwin.exe)
Connection attempt to an infection source
Stealing user critical data
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fingerprint
Link:
https://www.filescan.io/uploads/65f2d175fc3fe20efe66b930/reports/43dd600c-0176-4e55-ab1b-717e8fc67ca4/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/3c5cdfdb1871c9aa01be0c89519c25b4846e92a07143594f1986e7911e34cbfe
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/df7a6e6e-ad31-4766-b7c8-98bdd7c5ef7b
Result
Threat name:
Mars Stealer, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1408861
Signature
Antivirus / Scanner detection for submitted sample
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 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
Overwrites Mozilla Firefox settings
Sample uses string decryption to hide its real strings
Searches for specific processes (likely to inject)
Self deletion via cmd or bat file
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1408861 Sample: file.exe Startdate: 14/03/2024 Architecture: WINDOWS Score: 100 42 Snort IDS alert for network traffic 2->42 44 Multi AV Scanner detection for domain / URL 2->44 46 Found malware configuration 2->46 48 11 other signatures 2->48 8 file.exe 69 2->8         started        process3 dnsIp4 36 185.172.128.210, 49700, 80 NADYMSS-ASRU Russian Federation 8->36 38 185.172.128.187, 49706, 80 NADYMSS-ASRU Russian Federation 8->38 28 C:\Users\user\AppData\...\IDHDGIEHJJ.exe, PE32 8->28 dropped 30 C:\Users\user\AppData\...\softokn3[1].dll, PE32 8->30 dropped 32 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 8->32 dropped 34 11 other files (3 malicious) 8->34 dropped 50 Detected unpacking (changes PE section rights) 8->50 52 Detected unpacking (overwrites its own PE header) 8->52 54 Tries to steal Mail credentials (via file / registry access) 8->54 56 9 other signatures 8->56 13 cmd.exe 1 8->13         started        15 cmd.exe 1 8->15         started        file5 signatures6 process7 process8 17 IDHDGIEHJJ.exe 4 13->17         started        20 conhost.exe 13->20         started        22 conhost.exe 15->22         started        24 timeout.exe 1 15->24         started        signatures9 40 Multi AV Scanner detection for dropped file 17->40 26 cmd.exe 17->26         started        process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3c5cdfdb1871c9aa01be0c89519c25b4846e92a07143594f1986e7911e34cbfe
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3c5cdfdb1871c9aa01be0c89519c25b4846e92a07143594f1986e7911e34cbfe/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2024-03-14 10:29:05 UTC
File Type:
PE (Exe)
Extracted files:
55
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hron7wyyohe2uan6bsevdhbfwscg5evaofbvstyzq3tzchruzp7a._file
Verdict:
malicious
Similar samples:
2d5f186a3d1303fe97b7fd87b2dad17051bdd17123259a06cb01e740c9dfdf70
Stealc
58978edefe687a8790141583313962ab627aefaab2278e9da3a9fba753cdb608
Stealc
6e95e17675b684ab0248beae17c5979c0dd060a9f94459bded1181b6c7fdcf22
Stealc
8ad20c4b4c312feb468a58d1748c0d7abba3dd2d0fb8e6bfbee837c47a0e8c5a
Stealc
9643edaedb1e0b2075c9d608e12477727015706f3fe670283d84fb7dae49c88d
Stealc
a863912b539cb57887b41e05ac11e17298bac7565c6c715b33fe287590848d5d
Stealc
c79f0b410c62adbad0d697c85f0f6cf786c61e1a1244090650440d8a09b90bbd
Stealc
e5be6b01b31232f0ec0059be780fd0c20cea2d8e0450c9ed30dbe8e5b789d21a
Stealc
+ 9 additional samples on MalwareBazaar
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc discovery persistence spyware stealer
Link:
https://tria.ge/reports/240314-mh8h9sbh85/
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
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
Malware Config
C2 Extraction:
http://185.172.128.210
Unpacked files
SH256 hash:
34e868f09b59be9f7a4e387eea66d8813939b9cb19948d7ec7736c37fbd07d83
MD5 hash:
68eff65dadefc2a09b83a2b2a21d075d
SHA1 hash:
4165aab529b392b7fce6c0293f01aa0ee2a70e3f
Detections:
stealc
Create hunting rule
win_stealc_auto
Create hunting rule
Link:
https://www.unpac.me/results/d18186db-a980-4fc2-82b3-b067b004d838/
Parent samples :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 hash:
3c5cdfdb1871c9aa01be0c89519c25b4846e92a07143594f1986e7911e34cbfe
MD5 hash:
fd893e6856f997c9f4dccd4f0336ea8f
SHA1 hash:
1ec8a5609687d5aecc9a95a6c73c39411ab6f7af
Link:
https://www.unpac.me/results/d18186db-a980-4fc2-82b3-b067b004d838/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3c5cdfdb1871/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/3c5cdfdb1871c9aa01be0c89519c25b4846e92a07143594f1986e7911e34cbfe

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 3c5cdfdb1871c9aa01be0c89519c25b4846e92a07143594f1986e7911e34cbfe

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2777316/
  
URLhaus
https://urlhaus.abuse.ch/url/2754939/
Cape
Cape
https://www.capesandbox.com/analysis/479014/

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
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindNextVolumeMountPointA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleOutputCharacterW
KERNEL32.dll::ScrollConsoleScreenBufferA
KERNEL32.dll::GetConsoleWindow
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkA
KERNEL32.dll::GetFileAttributesW

Comments