MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 36badaade40faa02d430c40eafd4a6bad3d0c3289c9435ddcf4930301f029755. 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



GurcuStealer


Vendor detections: 15


Intelligence 15 IOCs YARA 24 File information Comments

SHA256 hash: 36badaade40faa02d430c40eafd4a6bad3d0c3289c9435ddcf4930301f029755
SHA3-384 hash: 0505920acf62ac3799dbfc5e0771d0d37f22f60068ade899bc66f75d504280e26a27360a2ba52ffa62696f03d95c120a
SHA1 hash: 38a2a60736c19436b2eaf783b9ae92838cc750c8
MD5 hash: 260373b0281173d7a116e4a54e361425
humanhash: red-floor-arizona-happy
File name:file
Download: download sample
Signature GurcuStealer
File size:5'844'480 bytes
First seen:2024-12-02 21:22:19 UTC
Last seen:2025-03-05 08:19:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'752 x AgentTesla, 19'658 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 98304:aGl27OuKr+gvhf2U9Nzm31PMoslkqXf0FvUcwti78OqJ7TPBvc8X6Uc:adOuK6mn9NzgMoYkSIvUcwti7TQlvciE
TLSH T19D46F126F6D500D8E9E74178827B6B67EA7031011310ABDB53D049B96F23BE27A7F319
TrID 44.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
34.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
6.3% (.EXE) Win64 Executable (generic) (10522/11/4)
3.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter Bitsight
Tags:185-215-113-209 exe GurcuStealer


Avatar
Bitsight
url: http://31.41.244.11/files/7781867830/4aDoFRV.exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
522
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-12-02 21:24:02 UTC
Tags:
stealer stealc loader themida amadey botnet gcleaner github telegram evasion exfiltration arch-doc cryptbot

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
infosteal packed shell sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file in the %temp% subdirectories
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Changing a file
Using the Windows Management Instrumentation requests
Creating a window
Creating a file
Running batch commands
Creating a process with a hidden window
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm cmd crypto evasive expand fingerprint lolbin lolbin packed rat
Result
Threat name:
Discord Token Stealer, DotStealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
Contains functionality to capture screen (.Net source)
Found malware configuration
Machine Learning detection for sample
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Self deletion via cmd or bat file
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Uses the Telegram API (likely for C&C communication)
Yara detected Costura Assembly Loader
Yara detected Discord Token Stealer
Yara detected DotStealer
Yara detected Telegram RAT
Yara detected Telegram Recon
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Amadey
Status:
Malicious
First seen:
2024-12-02 21:23:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:gurcu discovery spyware stealer
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Gurcu family
Gurcu, WhiteSnake
Malware Config
C2 Extraction:
https://api.telegram.org/bot8121067342:AAFL-KN4aKsB4OBMVYX2uU3_ad7ylEISJbY/sendDocument?chat_id=7781867830&caption=%F0%9F%92%A0DOTSTEALER%F0%9F%92%A0%0A%F0%9F%92%ABNew%20log:%0AIP:%20181.215.176.83%0AUsername:%20Admin%0ALocation:%20United%20Kingdom%20[GB],%20London,%20Englan
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
8c54a0c612a5b712a34dd82259288363a873b14751b6b13980c5a4011b65f3a0
MD5 hash:
e5a4e297f3501cddd1f1e949b56e97b2
SHA1 hash:
d7d5886ed673f5b87543faab52c17e6eb555f3c5
SH256 hash:
666a8ad2ac451cfaf4e7d5f1582c9c79694e588bfadd33b3b06bfe1db9eb34f6
MD5 hash:
8dd52482148f06616862b166d408f605
SHA1 hash:
e724c2b9b227472debae15f9cb89a7339469c15d
SH256 hash:
36badaade40faa02d430c40eafd4a6bad3d0c3289c9435ddcf4930301f029755
MD5 hash:
260373b0281173d7a116e4a54e361425
SHA1 hash:
38a2a60736c19436b2eaf783b9ae92838cc750c8
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Detect_PowerShell_Obfuscation
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:grakate_stealer_nov_2021
Rule name:INDICATOR_EXE_Packed_Fody
Author:ditekSHen
Description:Detects executables manipulated with Fody
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxComputerNames
Author:ditekSHen
Description:Detects executables containing possible sandbox analysis VM names
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxUserNames
Author:ditekSHen
Description:Detects executables containing possible sandbox analysis VM usernames
Rule name:INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
Rule name:RansomPyShield_Antiransomware
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:telegram_bot_api
Author:rectifyq
Description:Detects file containing Telegram Bot API

File information


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

Web download

GurcuStealer

Executable exe 36badaade40faa02d430c40eafd4a6bad3d0c3289c9435ddcf4930301f029755

(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 (GUARD_CF)high

Comments