MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c3780ffa848ff0fdcda89a1e8c4b3f18575ed988418e1e36b5196e12f7a1fba0. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c3780ffa848ff0fdcda89a1e8c4b3f18575ed988418e1e36b5196e12f7a1fba0
SHA3-384 hash: f5be3912f6c7c7935e7a14d2d319af8fa13d09556d373164ad8667ad5e3c2d96dcd382be0a0777116337caf84cd9ebaf
SHA1 hash: 49d445821f4d55f9ce5ce3bfca78de0dfccc7bf0
MD5 hash: 255f186b254b17407b3e5995252fdbb5
humanhash: fix-alabama-salami-texas
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:333'312 bytes
First seen:2024-04-13 11:33:27 UTC
Last seen:2024-04-13 12:22:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 4ba57da95029265230ad84e4bf543f08 (1 x LummaStealer, 1 x RiseProStealer, 1 x Stealc)
ssdeep 6144:V2FfLhUmyzf1vsBR0RUkzsKs5fWrzZBNjA:WfdeLZedkzsKs5Wr
TLSH T13464CF223790E476E55319706A29CAB06A7EB8216B7C8A8737443B2F5E332D0D737357
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 3370eccac4f0335a (1 x Stealc)
Reporter Bitsight
Tags:exe Stealc


Avatar
Bitsight
url: http://185.172.128.203/timeSync.exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
304
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c3780ffa848ff0fdcda89a1e8c4b3f18575ed988418e1e36b5196e12f7a1fba0.exe
Verdict:
Malicious activity
Analysis date:
2024-04-13 11:34:41 UTC
Tags:
stealer stealc
Link:
https://app.any.run/tasks/cff846c2-1c51-4a12-8071-010c4a4f9abc

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
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:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/c3780ffa848ff0fdcda89a1e8c4b3f18575ed988418e1e36b5196e12f7a1fba0
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/b9c31f29-d9fd-42d4-a87c-8a097e1655e3
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/1425387
Signature
Antivirus detection for dropped file
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
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 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: 1425387 Sample: file.exe Startdate: 13/04/2024 Architecture: WINDOWS Score: 100 46 Snort IDS alert for network traffic 2->46 48 Multi AV Scanner detection for domain / URL 2->48 50 Found malware configuration 2->50 52 10 other signatures 2->52 9 file.exe 66 2->9         started        process3 dnsIp4 40 185.172.128.26, 49730, 80 NADYMSS-ASRU Russian Federation 9->40 42 185.172.128.228, 49737, 80 NADYMSS-ASRU Russian Federation 9->42 32 C:\Users\user\AppData\...behaviorgraphHIDHCBGDH.exe, PE32 9->32 dropped 34 C:\Users\user\AppData\...\softokn3[1].dll, PE32 9->34 dropped 36 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 9->36 dropped 38 11 other files (7 malicious) 9->38 dropped 60 Detected unpacking (changes PE section rights) 9->60 62 Detected unpacking (overwrites its own PE header) 9->62 64 Tries to steal Mail credentials (via file / registry access) 9->64 66 7 other signatures 9->66 14 cmd.exe 1 9->14         started        17 WerFault.exe 21 16 9->17         started        file5 signatures6 process7 signatures8 68 Uses ping.exe to sleep 14->68 70 Uses ping.exe to check the status of other devices and networks 14->70 19 GHIDHCBGDH.exe 5 14->19         started        22 conhost.exe 14->22         started        process9 signatures10 54 Antivirus detection for dropped file 19->54 56 Multi AV Scanner detection for dropped file 19->56 24 cmd.exe 1 19->24         started        process11 signatures12 58 Uses ping.exe to sleep 24->58 27 PING.EXE 1 24->27         started        30 conhost.exe 24->30         started        process13 dnsIp14 44 2.2.2.2 FranceTelecom-OrangeFR France 27->44
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c3780ffa848ff0fdcda89a1e8c4b3f18575ed988418e1e36b5196e12f7a1fba0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c3780ffa848ff0fdcda89a1e8c4b3f18575ed988418e1e36b5196e12f7a1fba0/
Threat name:
Win32.Spyware.Stealc
Create hunting rule
Status:
Malicious
First seen:
2024-04-13 11:34:06 UTC
File Type:
PE (Exe)
Extracted files:
32
AV detection:
17 of 23 (73.91%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yn4a76uer7yp3tnitipiysz7dblv5wmiighb4nvvdfxbf55b7oqa._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc discovery spyware stealer
Link:
https://tria.ge/reports/240413-npep7sdb58/
Behaviour
Checks processor information in registry
Runs ping.exe
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
Unpacked files
SH256 hash:
b52bd484795f9b6427bd063c9dd50893474c1ee01d040fb6ff66063ebef7a77d
MD5 hash:
2eae5f367455c809a7888a3072dde2a2
SHA1 hash:
5e76ff05a8e2503e362b8b3db2e1189eb0b9240e
Detections:
stealc
Create hunting rule
win_stealc_auto
Create hunting rule
Link:
https://www.unpac.me/results/8d883d50-8160-4e7f-9fc8-31b73527e19f/
Parent samples :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 hash:
c3780ffa848ff0fdcda89a1e8c4b3f18575ed988418e1e36b5196e12f7a1fba0
MD5 hash:
255f186b254b17407b3e5995252fdbb5
SHA1 hash:
49d445821f4d55f9ce5ce3bfca78de0dfccc7bf0
Link:
https://www.unpac.me/results/8d883d50-8160-4e7f-9fc8-31b73527e19f/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c3780ffa848f/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/c3780ffa848ff0fdcda89a1e8c4b3f18575ed988418e1e36b5196e12f7a1fba0

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_Generic_2993e5a5
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Stealc_b8ab9ab5
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 c3780ffa848ff0fdcda89a1e8c4b3f18575ed988418e1e36b5196e12f7a1fba0

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2787085/
  
URLhaus
https://urlhaus.abuse.ch/url/2793509/
  
URLhaus
https://urlhaus.abuse.ch/url/2754939/
  
URLhaus
https://urlhaus.abuse.ch/url/2810818/

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
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindNextVolumeMountPointA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetStartupInfoA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetConsoleOutputCP
KERNEL32.dll::SetConsoleTitleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesLengthW
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW

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