MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa28923b864f555f4205239373060101ab1db7b72d9a301852bee00451c7ebda. 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: 13


Intelligence 13 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aa28923b864f555f4205239373060101ab1db7b72d9a301852bee00451c7ebda
SHA3-384 hash: 2297a073a5d826af354316b311fe3b063b899b93460175e38054004d643efe4a5585300837dc17834df6c858dc7e856d
SHA1 hash: a072231bd9202dd3b34c0f3c5402fec5ca373a27
MD5 hash: 14ad3dad94f1918960c75a5da4c58a83
humanhash: uranus-mango-cold-pip
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:269'824 bytes
First seen:2024-03-14 10:34:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ab00fc25030b2de9ad9e70ad3ea552e1 (1 x Smoke Loader, 1 x Stealc, 1 x GCleaner)
ssdeep 3072:HJeIexKZfZOgiAOEVmPcbq15/fOhfTw+N08hetrR8Umdu0SPr91u368:Hg+ZfZt5OEE59L8h1Nwxbu3P
Threatray 15 similar samples on MalwareBazaar
TLSH T1E144C00131BDA861D36709314976FAB4572ABCC1DB34526F2AE2379F1FB19B0853236B
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)
File icon (PE):PE icon
dhash icon 3370ecdaccf0339a (1 x GCleaner, 1 x Glupteba)
Reporter Bitsight
Tags:exe gcleaner


Avatar
Bitsight
url: http://5.42.65.115/download.php?pub=inte

Intelligence

File Origin
# of uploads :
1
# of downloads :
345
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
aa28923b864f555f4205239373060101ab1db7b72d9a301852bee00451c7ebda.exe
Verdict:
Malicious activity
Analysis date:
2024-03-14 10:36:07 UTC
Tags:
gcleaner loader
Link:
https://app.any.run/tasks/7559f1fc-41c5-4827-a50b-5c9e8b91af83

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/479017/
Detection(s):
Win.Dropper.Tofsee-10023347-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Sending an HTTP GET request to an infection source
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Connection attempt to an infection source
Launching a tool to kill processes
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fingerprint xpack
Link:
https://www.filescan.io/uploads/65f2d2de87137159d440f510/reports/57d0b52c-3eb5-4b2a-b468-640fe247b2a5/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/aa28923b864f555f4205239373060101ab1db7b72d9a301852bee00451c7ebda
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/394e30e5-b4e8-43aa-bf85-81112da6d27b
Result
Threat name:
GCleaner
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1408871
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Yara detected GCleaner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1408871 Sample: file.exe Startdate: 14/03/2024 Architecture: WINDOWS Score: 100 25 Snort IDS alert for network traffic 2->25 27 Malicious sample detected (through community Yara rule) 2->27 29 Antivirus detection for URL or domain 2->29 31 4 other signatures 2->31 7 file.exe 14 2->7         started        process3 dnsIp4 23 185.172.128.90, 49729, 80 NADYMSS-ASRU Russian Federation 7->23 33 Detected unpacking (changes PE section rights) 7->33 35 Detected unpacking (overwrites its own PE header) 7->35 11 cmd.exe 7->11         started        13 WerFault.exe 16 7->13         started        15 WerFault.exe 16 7->15         started        17 6 other processes 7->17 signatures5 process6 process7 19 conhost.exe 11->19         started        21 taskkill.exe 11->21         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/aa28923b864f555f4205239373060101ab1db7b72d9a301852bee00451c7ebda
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/aa28923b864f555f4205239373060101ab1db7b72d9a301852bee00451c7ebda/
Threat name:
Win32.Trojan.Gcleaner
Create hunting rule
Status:
Malicious
First seen:
2024-03-14 10:35:08 UTC
File Type:
PE (Exe)
Extracted files:
55
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=viujeo4gj5kv6qqfeojxgbqbagvr3n5xfwndagcsx3qaiuoh5pna._file
Verdict:
malicious
Similar samples:
733245a6bf406f721212386ea509819d47141706099582d6094cb7a06817d34e
GCleaner
d8fc9a7c6db8a578346d38375a467bdaec5e184149613bf7d1a4c5108ceb2b7c
GCleaner
d930ff3e1d83a347d05e9ccc86460e3ba2463a7284471081ff6c578ff5c6133a
GCleaner
edf1e3dcedbd126aab837c69aa8b81dd3767df139b0d17c1fafcac5a84627fa1
GCleaner
+ 5 additional samples on MalwareBazaar
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner loader
Link:
https://tria.ge/reports/240314-mmnpnahg5s/
Behaviour
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Checks computer location settings
Deletes itself
GCleaner
Malware Config
C2 Extraction:
185.172.128.90
5.42.65.115
Unpacked files
SH256 hash:
110c64b4a03a6ed6c8ffd2baba0a5831fd8bd59ca6b23d6e885a8f34e13461fc
MD5 hash:
fa092cd96d9916f2e247067653cd1110
SHA1 hash:
b21b8b0914adc6d9c8a1d83e0ca0ddb83cd28d23
Link:
https://www.unpac.me/results/6c77e721-2095-49e1-82ee-d2cc17b8225b/
Parent samples :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 hash:
aa28923b864f555f4205239373060101ab1db7b72d9a301852bee00451c7ebda
MD5 hash:
14ad3dad94f1918960c75a5da4c58a83
SHA1 hash:
a072231bd9202dd3b34c0f3c5402fec5ca373a27
Link:
https://www.unpac.me/results/6c77e721-2095-49e1-82ee-d2cc17b8225b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/aa28923b864f555f4205239373060101ab1db7b72d9a301852bee00451c7ebda

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:Windows_Generic_Threat_97c1a260
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Smokeloader_3687686f
Create hunting rule
Author:Elastic Security

File information

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

Web download

GCleaner

Executable exe aa28923b864f555f4205239373060101ab1db7b72d9a301852bee00451c7ebda

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/479017/
  
URLhaus
https://urlhaus.abuse.ch/url/2755475/
  
URLhaus
https://urlhaus.abuse.ch/url/2755494/

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
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindNextVolumeMountPointA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleOutputCharacterW
KERNEL32.dll::ScrollConsoleScreenBufferA
KERNEL32.dll::GetConsoleWindow
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkA
KERNEL32.dll::GetFileAttributesW

Comments