MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81902ac66a51c109471bf723cd373ab47a52c992855b9e2dd954090326cac420. 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



VIPKeylogger


Vendor detections: 15


Intelligence 15 IOCs YARA 5 File information Comments

SHA256 hash: 81902ac66a51c109471bf723cd373ab47a52c992855b9e2dd954090326cac420
SHA3-384 hash: e6f610bb79a6df0911e0846d35d641bb9ef429b8228066edf0818dce4d0be924913ff007e3362aefd279a4be92e39446
SHA1 hash: 2b4bc1a883fa32a13b095a6385ca54f2a61a1959
MD5 hash: 4aab71fbea4b35729e6a1de62c3e9c4d
humanhash: autumn-yankee-california-mobile
File name:RFQ-KTE-07102024.pdf.scr
Download: download sample
Signature VIPKeylogger
File size:28'672 bytes
First seen:2024-10-18 06:04:22 UTC
Last seen:2024-10-18 06:57:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 384:UHcq28V683SxRkjkpvPDFBpzg3GBqphxAwRfsSlYoxEcn1k6+IGJl:UV3SxKjOHDZ83GBv2xr1k6+ISl
Threatray 5'253 similar samples on MalwareBazaar
TLSH T16ED2C423BA698263DB9D4E3AC49FA5290730E6756007F64D780B330558437F7A9CCA7E
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
File icon (PE):PE icon
dhash icon e06ced0c33836961 (1 x VIPKeylogger)
Reporter lowmal3
Tags:exe VIPKeylogger

Intelligence


File Origin
# of uploads :
2
# of downloads :
372
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ-KTE-07102024.pdf.scr
Verdict:
Malicious activity
Analysis date:
2024-10-18 02:43:03 UTC
Tags:
evasion snake keylogger telegram

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
93.3%
Tags:
Underscore Extens Micro Msil
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade net_reactor packed
Result
Verdict:
MALICIOUS
Result
Threat name:
Snake Keylogger, VIP Keylogger
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Silenttrinity Stager Msbuild Activity
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect the country of the analysis system (by using the IP)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses the Telegram API (likely for C&C communication)
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected Snake Keylogger
Yara detected Telegram RAT
Yara detected VIP Keylogger
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2024-10-17 23:47:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Result
Malware family:
vipkeylogger
Score:
  10/10
Tags:
family:vipkeylogger collection discovery keylogger stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Browser Information Discovery
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Suspicious use of NtCreateUserProcessOtherParentProcess
VIPKeylogger
Malware Config
C2 Extraction:
https://api.telegram.org/bot7371892501:AAE6c_q-yLsVj82ZZEmMuRlQtTm95MBjCz0/sendMessage?chat_id=6750192797
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
81902ac66a51c109471bf723cd373ab47a52c992855b9e2dd954090326cac420
MD5 hash:
4aab71fbea4b35729e6a1de62c3e9c4d
SHA1 hash:
2b4bc1a883fa32a13b095a6385ca54f2a61a1959
Detections:
PureCrypter_Stage1
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:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Malspam

VIPKeylogger

Executable exe 81902ac66a51c109471bf723cd373ab47a52c992855b9e2dd954090326cac420

(this sample)

  
Delivery method
Distributed via e-mail attachment

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 (GUARD_CF)high

Comments