MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1f834b50fdec6530c764e95c55d7a2297c4c9389038ee8b6315570f76eb0d12. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments

SHA256 hash: f1f834b50fdec6530c764e95c55d7a2297c4c9389038ee8b6315570f76eb0d12
SHA3-384 hash: 905e8a9c5ed810516827e3783245c60c9ca2a88107a3ae3e15276e070249d91bc838cac8272b24a5b0762920f3f42d52
SHA1 hash: db47c3e07703a3dbf565eff3135150103a555863
MD5 hash: cbaf46fb06c23350973cf34c975e3ccd
humanhash: social-idaho-kansas-paris
File name:Document.exe
Download: download sample
Signature VIPKeylogger
File size:617'984 bytes
First seen:2024-08-13 13:51:34 UTC
Last seen:2024-08-13 14:23:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:rVrfCzdzPhbhylU+t2ckKruPlRp5bh4+k:rVL4Jh+t2ckldf
Threatray 937 similar samples on MalwareBazaar
TLSH T1A6D47303BA8789B1F3B86776C5AB44340BE5D9813FABDA0E754A239616437FBDC40607
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
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)
Reporter adrian__luca
Tags:exe VIPKeylogger

Intelligence


File Origin
# of uploads :
2
# of downloads :
393
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Document.exe
Verdict:
Malicious activity
Analysis date:
2024-08-13 13:56:27 UTC
Tags:
netreactor evasion snake keylogger telegram stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Creating a file in the %AppData% directory
Launching a process
Sending a custom TCP request
Reading critical registry keys
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Setting a global event handler for the keyboard
Unauthorized injection to a system process
Forced shutdown of a browser
Verdict:
Unknown
Threat level:
  10/10
Confidence:
89%
Tags:
net_reactor packed
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:
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
Allocates memory in foreign processes
Antivirus detection for URL or domain
Contains functionality to register a low level keyboard hook
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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 the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected Telegram RAT
Yara detected VIP Keylogger
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1492224 Sample: Document.exe Startdate: 13/08/2024 Architecture: WINDOWS Score: 100 34 reallyfreegeoip.org 2->34 36 api.telegram.org 2->36 38 3 other IPs or domains 2->38 48 Found malware configuration 2->48 50 Antivirus detection for URL or domain 2->50 52 Multi AV Scanner detection for submitted file 2->52 58 10 other signatures 2->58 7 Document.exe 16 4 2->7         started        12 uykffgjgnbva.exe 14 2 2->12         started        14 uykffgjgnbva.exe 2 2->14         started        signatures3 54 Tries to detect the country of the analysis system (by using the IP) 34->54 56 Uses the Telegram API (likely for C&C communication) 36->56 process4 dnsIp5 40 doc.kouken-kasei-jp.com 45.200.149.26, 49703, 51363, 51364 Africa-on-Cloud-ASZA Seychelles 7->40 24 C:\Users\user\AppData\...\uykffgjgnbva.exe, PE32 7->24 dropped 26 C:\Users\...\uykffgjgnbva.exe:Zone.Identifier, ASCII 7->26 dropped 60 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->60 62 Writes to foreign memory regions 7->62 64 Injects a PE file into a foreign processes 7->64 16 RegAsm.exe 14 17 7->16         started        66 Multi AV Scanner detection for dropped file 12->66 68 Machine Learning detection for dropped file 12->68 70 Allocates memory in foreign processes 12->70 20 RegAsm.exe 12->20         started        22 RegAsm.exe 14->22         started        file6 signatures7 process8 dnsIp9 28 reallyfreegeoip.org 188.114.97.3, 443, 51366, 56452 CLOUDFLARENETUS European Union 16->28 30 checkip.dyndns.com 193.122.6.168, 51362, 51365, 51367 ORACLE-BMC-31898US United States 16->30 42 Tries to steal Mail credentials (via file / registry access) 16->42 44 Contains functionality to register a low level keyboard hook 16->44 32 api.telegram.org 149.154.167.220, 443, 56485, 56486 TELEGRAMRU United Kingdom 20->32 46 Tries to harvest and steal browser information (history, passwords, etc) 22->46 signatures10
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2024-08-12 11:13:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
collection credential_access discovery persistence spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Browser Information Discovery
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Credentials from Password Stores: Credentials from Web Browsers
Suspicious use of NtCreateUserProcessOtherParentProcess
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
f1f834b50fdec6530c764e95c55d7a2297c4c9389038ee8b6315570f76eb0d12
MD5 hash:
cbaf46fb06c23350973cf34c975e3ccd
SHA1 hash:
db47c3e07703a3dbf565eff3135150103a555863
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: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 f1f834b50fdec6530c764e95c55d7a2297c4c9389038ee8b6315570f76eb0d12

(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