MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 728696f9bb3dfb68b0256bd499f1bd06192dcef913b8dca878a38cb8eea869db. 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
| SHA256 hash: | 728696f9bb3dfb68b0256bd499f1bd06192dcef913b8dca878a38cb8eea869db |
|---|---|
| SHA3-384 hash: | f78175e443cf4643511422a04f4a3789a1099dfd4f10fad45dff56c9786465bf5d7f8fbc96bc58888fcf99ea2ca0e65b |
| SHA1 hash: | f908e4486ab9386fa9f0663d8abbf1e9415f73a1 |
| MD5 hash: | e64c5da0107f023dfe13384d97f384c9 |
| humanhash: | missouri-wolfram-tennis-bulldog |
| File name: | file |
| Download: | download sample |
| Signature | Stealc |
| File size: | 267'264 bytes |
| First seen: | 2024-03-07 17:46:18 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 1970ee4502a58aeaf63f54404fffb3f3 (1 x Stealc) |
| ssdeep | 3072:Y+JaVW1p8aE9NWzp+tdn4YP6eTwdUnf9oQk57JKk8JT4JOKnRSZ:YbW1uV00f4RKvnf9o9xwjRiOCc |
| Threatray | 2'597 similar samples on MalwareBazaar |
| TLSH | T19644CF4775E2C075EAB74B324D70AA400A7FBDB35AB0995B3398130E5D305D19E3ABA3 |
| 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): |  |
| dhash icon | 0206060308102000 (1 x Stealc) |
| Reporter |  Bitsight |
| Tags: | exe Stealc |
Intelligence
File Origin
# of uploads :
1
# of downloads :
320
Origin country :
USVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
728696f9bb3dfb68b0256bd499f1bd06192dcef913b8dca878a38cb8eea869db.exe
Verdict:
Malicious activity
Analysis date:
2024-03-07 17:50:29 UTC
Tags:
stealer stealc
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Сreating synchronization primitives
Creating a file
Reading critical registry keys
Changing a file
Creating a file in the %AppData% subdirectories
Creating a window
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
Stealing user critical data
Sending an HTTP GET request to an infection source
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
anti-vm fingerprint lolbin shell32 stealc
Verdict:
Malicious
Labled as:
Malware
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
Verdict:
Malicious
Result
Threat name:
Mars Stealer, Stealc, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
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 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
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:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.Privateloader
Status:
Malicious
First seen:
2024-03-07 17:47:04 UTC
File Type:
PE (Exe)
Extracted files:
7
AV detection:
20 of 24 (83.33%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 2'587 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
8/10
Tags:
discovery spyware stealer
Behaviour
Checks processor information in registry
Delays execution with timeout.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
Deletes itself
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Unpacked files
SH256 hash:
6700f8a4ff17fbc42a595309e01972a6f84b7d76b8c779c8e43d609b3c6cd5da
MD5 hash:
8eb9ce4d68764b04954b09fc73e584c5
SHA1 hash:
dfdd0fe7922979acecae110ba5a7007a4c29adc4
Detections:
win_stealc_auto
SH256 hash:
728696f9bb3dfb68b0256bd499f1bd06192dcef913b8dca878a38cb8eea869db
MD5 hash:
e64c5da0107f023dfe13384d97f384c9
SHA1 hash:
f908e4486ab9386fa9f0663d8abbf1e9415f73a1
Malware family:
Stealc
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | 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
Dropped by
Privateloader
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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (HIGH_ENTROPY_VA) | high |
| CHECK_PIE | Missing Position-Independent Executable (PIE) Protection | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| MULTIMEDIA_API | Can Play Multimedia | GDI32.dll::StretchDIBits |
| SHELL_API | Manipulates System Shell | SHELL32.dll::FindExecutableA |
| WIN32_PROCESS_API | Can Create Process and Threads | KERNEL32.dll::CloseHandle |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::TerminateProcess KERNEL32.dll::FindNextVolumeMountPointW KERNEL32.dll::LoadLibraryW KERNEL32.dll::LoadLibraryA KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetVolumeInformationW |
| WIN_BASE_EXEC_API | Can Execute other programs | KERNEL32.dll::AddConsoleAliasA KERNEL32.dll::AttachConsole KERNEL32.dll::WriteConsoleA KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleW KERNEL32.dll::ReadConsoleInputA |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CreateDirectoryA KERNEL32.dll::CreateFileW KERNEL32.dll::GetWindowsDirectoryW KERNEL32.dll::RemoveDirectoryW |
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