MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 407e7e3d97f1f8d07808c2ba486e9da37e6c823cc3276f4dad51a820ae9707c7. 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 12 File information Comments

SHA256 hash: 407e7e3d97f1f8d07808c2ba486e9da37e6c823cc3276f4dad51a820ae9707c7
SHA3-384 hash: 35c53ff8828f424a3b1aff08066641754333a123e5fe2d51f1e294472371a3a117195f4cbca5fedec14d97dd0547bc33
SHA1 hash: 2baf94cea34cda8bf542bf63ad117f4243345b65
MD5 hash: 2b635d5080590a14d5aea4d77bf03cd7
humanhash: diet-bacon-jig-mississippi
File name:2b635d5080590a14d5aea4d77bf03cd7.exe
Download: download sample
Signature Stealc
File size:262'656 bytes
First seen:2024-03-27 06:20:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ffc72a0f439eb5b614c6c01a579e2049 (1 x Stealc, 1 x Vidar, 1 x Smoke Loader)
ssdeep 3072:G9zuc8AteIRdLYZp4jESFxhicOiVl2wzLnXLqDOPFqaZknolQLUeK3wJf6eC2OiH:GMcVteedLYZijvROiCa73FqaZber64
TLSH T145447C2076F59032F3F3BF3055B456A50A3BB8B36A34B1AE2250263E5D716C18E76727
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 3370e4daccf0335a (2 x Stealc)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://185.172.128.26/f993692117a3fda2.php

Intelligence


File Origin
# of uploads :
1
# of downloads :
358
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
407e7e3d97f1f8d07808c2ba486e9da37e6c823cc3276f4dad51a820ae9707c7.exe
Verdict:
Malicious activity
Analysis date:
2024-03-27 06:20:46 UTC
Tags:
stealer stealc

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)
Verdict:
No Threat
Threat level:
  10/10
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
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)
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1416210 Sample: PSdZ6MOu6m.exe Startdate: 27/03/2024 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 PSdZ6MOu6m.exe 77 2->9         started        process3 dnsIp4 40 185.172.128.26, 49729, 80 NADYMSS-ASRU Russian Federation 9->40 42 185.172.128.65, 49737, 80 NADYMSS-ASRU Russian Federation 9->42 32 C:\Users\user\AppData\...\AKEBFCFIJJ.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 AKEBFCFIJJ.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
Threat name:
Win32.Trojan.Privateloader
Status:
Malicious
First seen:
2024-03-27 06:21:05 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:stealc discovery spyware stealer
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
Malware Config
C2 Extraction:
http://185.172.128.26
Unpacked files
SH256 hash:
0c16bb0b841ef221b578ecdd456bfcd9938c9db5d649806f6494606fcedaa149
MD5 hash:
2fe1b7efc28d2aacc955c1c001499420
SHA1 hash:
ba809e8d95086b7a4d6da778993fd8fe4d7975bd
Detections:
stealc win_stealc_auto
SH256 hash:
407e7e3d97f1f8d07808c2ba486e9da37e6c823cc3276f4dad51a820ae9707c7
MD5 hash:
2b635d5080590a14d5aea4d77bf03cd7
SHA1 hash:
2baf94cea34cda8bf542bf63ad117f4243345b65
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:BitcoinAddress
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
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: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_Generic_2993e5a5
Author:Elastic Security
Rule name:Windows_Trojan_Stealc_b8ab9ab5
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 407e7e3d97f1f8d07808c2ba486e9da37e6c823cc3276f4dad51a820ae9707c7

(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_NXMissing Non-Executable Memory Protectioncritical
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::FindNextVolumeMountPointW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetConsoleTitleA
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasExesLengthA
KERNEL32.dll::GetConsoleOutputCP
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileW
KERNEL32.dll::GetFileAttributesW
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpOpen
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyW

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