MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 75e985ad843283de707a360843a5ac65e0800b8dde13004c9eec247bc4ee4437. 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 10 File information Comments

SHA256 hash: 75e985ad843283de707a360843a5ac65e0800b8dde13004c9eec247bc4ee4437
SHA3-384 hash: 57975ab47133589c10bc581fc0014adc84cafce9dbcb7bbf6ec9ea597d6dd90bc82d501cf6ae71d9b031f73b08599212
SHA1 hash: edfa573934a1b0505727e0d4b1b0544f11523e7e
MD5 hash: e6fe558f6c026493bff28c7451069715
humanhash: hotel-bulldog-island-lactose
File name:e6fe558f6c026493bff28c7451069715.exe
Download: download sample
Signature Stealc
File size:314'368 bytes
First seen:2024-03-20 23:25:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 778ccad6990ff49005ab127aaa21897f (4 x Stealc, 1 x Socks5Systemz)
ssdeep 3072:RlJLNbCckq+PcKNEXZDr6EQb4rhLxZ60uDO/6sBh7aFTvCoVoJ7rMRk2JYn3:RsqXZq5b4rXZJu6/jn7aFTe7ARW
TLSH T13E646B0375E2FCA1E46243315E2D99EC7B3EFCA64D65875723582E0F28723A0D963B52
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 0000010112322009 (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 :
385
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
e7650cf7c6fc1aa4e2c66581a395de07c056dbec35d003ab88a6bd01b27fd83e.exe
Verdict:
Malicious activity
Analysis date:
2024-03-20 21:14:45 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)
Launching a process
Moving a file to the Program Files subdirectory
Replacing files
Sending an HTTP GET request
Forced system process termination
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint
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 / 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)
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: 1412776 Sample: H6O4MQuZbM.exe Startdate: 21/03/2024 Architecture: WINDOWS Score: 100 60 Snort IDS alert for network traffic 2->60 62 Found malware configuration 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 10 other signatures 2->66 9 H6O4MQuZbM.exe 77 2->9         started        14 CAKKKFBFID.exe 1 3 2->14         started        16 CAKKKFBFID.exe 1 3 2->16         started        process3 dnsIp4 54 185.172.128.209, 49704, 80 NADYMSS-ASRU Russian Federation 9->54 56 185.172.128.65, 49713, 80 NADYMSS-ASRU Russian Federation 9->56 46 C:\Users\user\AppData\...\CAKKKFBFID.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 (4 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 CAKKKFBFID.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.Trojan.Convagent
Status:
Malicious
First seen:
2024-03-20 21:41:06 UTC
File Type:
PE (Exe)
Extracted files:
32
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:buer family:stealc discovery loader 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
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
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Buer
Stealc
Unpacked files
SH256 hash:
28a7e49221f1cfb589fe18d1e37aec52371886f3299308c6c77a2eac4faba0de
MD5 hash:
b4a1f5af8cfeeb61b3597e5d0a3d4606
SHA1 hash:
2292b4322bc8c6778c5139b8d5375ec7f2ffe2f9
Detections:
stealc win_stealc_auto
SH256 hash:
75e985ad843283de707a360843a5ac65e0800b8dde13004c9eec247bc4ee4437
MD5 hash:
e6fe558f6c026493bff28c7451069715
SHA1 hash:
edfa573934a1b0505727e0d4b1b0544f11523e7e
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 75e985ad843283de707a360843a5ac65e0800b8dde13004c9eec247bc4ee4437

(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::ReadConsoleOutputCharacterW
KERNEL32.dll::SetConsoleCtrlHandler
KERNEL32.dll::SetStdHandle
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::CreateFileA
KERNEL32.dll::GetWindowsDirectoryA
KERNEL32.dll::RemoveDirectoryW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::QueryDosDeviceA

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