MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 08dc5b0fb0c2646f546f0af389c3c9934995f1cf6819a05c171db3eca242554d. 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



GCleaner


Vendor detections: 16


Intelligence 16 IOCs YARA 6 File information Comments

SHA256 hash: 08dc5b0fb0c2646f546f0af389c3c9934995f1cf6819a05c171db3eca242554d
SHA3-384 hash: ebd06723e891aaf5d09af6080ba69895eee19938928d42dd5cee3e183a8adb627afba598358a165aea2e424a7ba75f08
SHA1 hash: 298dac0330058235adec1bd5dd80c59f99c688af
MD5 hash: bdf38f58675cd77401c679df69c4a3e8
humanhash: wolfram-spring-kansas-pasta
File name:file
Download: download sample
Signature GCleaner
File size:342'528 bytes
First seen:2024-09-24 16:26:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f191e24764ac2972e2c40e13c71b6d0d (4 x GCleaner, 2 x Stealc, 1 x Smoke Loader)
ssdeep 6144:aLBLLLswh/uDmd4hjDjjeFUm7wsiRBQIFYc5gujYW:aLB/LUDI4DX9m7w/1YW
Threatray 9 similar samples on MalwareBazaar
TLSH T14C7439B26AE0BC15EEA6473A9F29D6DC276FBC525E30534E3144BE1F19733A1C912312
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
File icon (PE):PE icon
dhash icon 3248c8a0dce97284 (1 x GCleaner)
Reporter Bitsight
Tags:exe gcleaner


Avatar
Bitsight
url: http://80.66.75.114/dl?name=mixnine

Intelligence


File Origin
# of uploads :
1
# of downloads :
416
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-09-24 16:04:07 UTC
Tags:
loader gcleaner

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
Execution Infostealer Network Stealth Toolbar Cobalt
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
epmicrosoft_visual_cc fingerprint microsoft_visual_cc packed
Result
Verdict:
SUSPICIOUS
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:
GCleaner, Nymaim
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)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Yara detected GCleaner
Yara detected Nymaim
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1517061 Sample: file.exe Startdate: 24/09/2024 Architecture: WINDOWS Score: 100 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus detection for URL or domain 2->53 55 8 other signatures 2->55 7 file.exe 32 2->7         started        process3 dnsIp4 47 80.66.75.114, 49701, 80 RISS-ASRU Russian Federation 7->47 25 C:\Users\user\AppData\Local\...\Y-Cleaner.exe, PE32 7->25 dropped 27 C:\Users\user\...\Bunifu_UI_v1.5.3.dll, PE32 7->27 dropped 29 C:\Users\user\AppData\Local\...\soft[1], PE32 7->29 dropped 31 C:\Users\user\AppData\Local\...\dll[1], PE32 7->31 dropped 57 Detected unpacking (changes PE section rights) 7->57 59 Detected unpacking (overwrites its own PE header) 7->59 12 WerFault.exe 16 7->12         started        15 WerFault.exe 16 7->15         started        17 WerFault.exe 16 7->17         started        19 7 other processes 7->19 file5 signatures6 process7 file8 33 C:\ProgramData\Microsoft\...\Report.wer, Unicode 12->33 dropped 35 C:\ProgramData\Microsoft\...\Report.wer, Unicode 15->35 dropped 37 C:\ProgramData\Microsoft\...\Report.wer, Unicode 17->37 dropped 39 C:\ProgramData\Microsoft\...\Report.wer, Unicode 19->39 dropped 41 C:\ProgramData\Microsoft\...\Report.wer, Unicode 19->41 dropped 43 C:\ProgramData\Microsoft\...\Report.wer, Unicode 19->43 dropped 45 3 other malicious files 19->45 dropped 21 conhost.exe 19->21         started        23 taskkill.exe 19->23         started        process9
Threat name:
Win32.Trojan.Smokeloader
Status:
Malicious
First seen:
2024-09-24 15:57:16 UTC
File Type:
PE (Exe)
Extracted files:
69
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Result
Malware family:
gcleaner
Score:
  10/10
Tags:
family:gcleaner discovery loader
Behaviour
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Checks computer location settings
Deletes itself
Loads dropped DLL
Downloads MZ/PE file
GCleaner
Malware Config
C2 Extraction:
80.66.75.114
45.91.200.135
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
ef4fb74d4101f4f3af9c9bb20144a64aac4f7d801a7cedb62f64f620333faa13
MD5 hash:
5085491fcf5c437e45394ddd29a77956
SHA1 hash:
f2476c2e08d3c665d18378c703bf020561b931e7
Detections:
GCleaner
SH256 hash:
08dc5b0fb0c2646f546f0af389c3c9934995f1cf6819a05c171db3eca242554d
MD5 hash:
bdf38f58675cd77401c679df69c4a3e8
SHA1 hash:
298dac0330058235adec1bd5dd80c59f99c688af
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:DebuggerHiding__Active
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:pe_detect_tls_callbacks

File information


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

Web download

GCleaner

Executable exe 08dc5b0fb0c2646f546f0af389c3c9934995f1cf6819a05c171db3eca242554d

(this sample)

  
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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::ObjectPrivilegeAuditAlarmA
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetVolumeInformationW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetStartupInfoA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::FillConsoleOutputCharacterA
KERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleOutputA
KERNEL32.dll::SetConsoleMode
KERNEL32.dll::SetConsoleTitleA
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExA
KERNEL32.dll::CreateFileA
KERNEL32.dll::MoveFileA
KERNEL32.dll::GetFileAttributesW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
KERNEL32.dll::QueryDosDeviceA
WIN_TIME_APICan Modify TimeKERNEL32.dll::SetSystemTimeAdjustment

Comments