MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b7fdba81148aecf979b33a0c63abbbc57c28fe521b7e9c95aa7505f9f3cb7561. 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: 14


Intelligence 14 IOCs YARA 1 File information Comments

SHA256 hash: b7fdba81148aecf979b33a0c63abbbc57c28fe521b7e9c95aa7505f9f3cb7561
SHA3-384 hash: 6c0d7eda1fd20db805e93cd5658bcd42804611b21bbcadd65ec89d9f4681e7da608acabbdadba740387b2f6fb2b4c5e7
SHA1 hash: 31e21f77eacf1410e711850de5032ce9ad05c6e5
MD5 hash: 6dbd2dae6751b41350a0412e17928850
humanhash: wyoming-florida-mountain-avocado
File name:file
Download: download sample
Signature Stealc
File size:1'786'880 bytes
First seen:2024-11-25 03:28:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep 24576:F7pqKUe3SumYxpExE3X2+qxiyQMUantbA4eGEDQ2nzIPeS8505ip8FNtdnF59:GKUD0K+oby0b0t+Gj50wpANtdnF
TLSH T16285332C962CB26EC8248E7295AB12377F30EE57849540D41F9B373E01479AE3751FAC
TrID 27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
20.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
18.6% (.EXE) Win32 Executable (generic) (4504/4/1)
8.5% (.ICL) Windows Icons Library (generic) (2059/9)
8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter Bitsight
Tags:exe Stealc


Avatar
Bitsight
url: http://185.215.113.16/steam/random.exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
404
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-11-25 03:32:39 UTC
Tags:
lumma themida stealer loader stealc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Tags:
small spam hype sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for analyzing tools
Searching for the window
Running batch commands
Creating a process with a hidden window
Launching a process
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
microsoft_visual_cc packed packed packer_detected
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
AI detected suspicious sample
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)
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Hides threads from debuggers
Machine Learning detection for sample
PE file contains section with special chars
Searches for specific processes (likely to inject)
Suricata IDS alerts for network traffic
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Tries to evade debugger and weak emulator (self modifying code)
Yara detected Powershell download and execute
Yara detected Stealc
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2024-11-25 03:29:06 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
15 of 38 (39.47%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:stealc botnet:mars discovery evasion stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks BIOS information in registry
Identifies Wine through registry keys
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Stealc
Stealc family
Malware Config
C2 Extraction:
http://185.215.113.206
Verdict:
Suspicious
Tags:
Stealc Stealer
YARA:
n/a
Unpacked files
SH256 hash:
ebecb84ad0cd8a9590d2b5491c18165d2a5bfd172ba22ca0dbaf9f054c75d701
MD5 hash:
43e6e27c92ddfbb3f8a9d234e82414b1
SHA1 hash:
7553a3fd91bcabe45ac57a3c904871408058b0b5
Detections:
win_stealc_w0 win_stealc_a0
SH256 hash:
b7fdba81148aecf979b33a0c63abbbc57c28fe521b7e9c95aa7505f9f3cb7561
MD5 hash:
6dbd2dae6751b41350a0412e17928850
SHA1 hash:
31e21f77eacf1410e711850de5032ce9ad05c6e5
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:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Stealc

Executable exe b7fdba81148aecf979b33a0c63abbbc57c28fe521b7e9c95aa7505f9f3cb7561

(this sample)

  
Dropped by
Amadey
  
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

Comments