MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21ac6f3276c975f9c867dcb924d8c2b7781d2d8ab5abe67d5f3e96786e259299. 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: 15


Intelligence 15 IOCs YARA 10 File information Comments

SHA256 hash: 21ac6f3276c975f9c867dcb924d8c2b7781d2d8ab5abe67d5f3e96786e259299
SHA3-384 hash: 8ff29fb7118ab201ad52759dd41c4f037128fa3d954f82cd6d68629c350c3fb195b91093647f752bb4181ca22dc623d3
SHA1 hash: 21eddbcb73ce4459f8ea8fa3cd09c186a9dd1343
MD5 hash: f42eec194719224bc45a068850483c1b
humanhash: twenty-fifteen-five-south
File name:f42eec194719224bc45a068850483c1b
Download: download sample
Signature GCleaner
File size:5'969'920 bytes
First seen:2026-01-19 15:05:44 UTC
Last seen:2026-01-26 08:39:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 18cfd404188148ae61834d5a15cb322a (21 x GCleaner)
ssdeep 98304:8xfMOi3jv/Pa2n/XBymyImwv/Tox+XyPSb:8qOiTPJxyVwv/MxiHb
Threatray 440 similar samples on MalwareBazaar
TLSH T1F456CF12E6C00133D5A4CAB3BB56A5CA971D7448BC7C35DE02F8A9DC7FB0259898C57E
TrID 96.1% (.EXE) Win32 Executable Borland Delphi 7 (664796/42/58)
2.0% (.EXE) Win32 Executable Delphi generic (14182/79/4)
0.6% (.EXE) Win32 Executable (generic) (4504/4/1)
0.2% (.EXE) Win16/32 Executable Delphi generic (2072/23)
0.2% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter adrian__luca
Tags:exe gcleaner

Intelligence


File Origin
# of uploads :
2
# of downloads :
113
Origin country :
HU HU
Vendor Threat Intelligence
No detections
Malware family:
ID:
1
File name:
_21ac6f3276c975f9c867dcb924d8c2b7781d2d8ab5abe67d5f3e96786e259299.exe
Verdict:
Malicious activity
Analysis date:
2026-01-19 15:38:56 UTC
Tags:
gcleaner loader inno installer stealc stealer delphi auto generic vidar evasion golang xor-url reverseloader ta558 apt payload stegocampaign auto-reg upx pastebin

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
delphi cobalt emotet
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context anti-debug borland_delphi fingerprint installer-heuristic keylogger packed
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-01-18T09:07:00Z UTC
Last seen:
2026-01-18T09:49:00Z UTC
Hits:
~10
Detections:
Trojan.Win32.Qshell.sb Trojan.Win32.Inject.sb Trojan.Win32.Delf.sb HEUR:Trojan.Win32.Qshell.gen
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 32 Exe x86
Threat name:
Win32.Trojan.GCleaner
Status:
Malicious
First seen:
2026-01-18 14:46:59 UTC
File Type:
PE (Exe)
Extracted files:
52
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Result
Malware family:
gcleaner
Score:
  10/10
Tags:
family:gcleaner discovery loader
Behaviour
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Executes dropped EXE
GCleaner
Gcleaner family
Malware Config
C2 Extraction:
185.156.73.98
Unpacked files
SH256 hash:
21ac6f3276c975f9c867dcb924d8c2b7781d2d8ab5abe67d5f3e96786e259299
MD5 hash:
f42eec194719224bc45a068850483c1b
SHA1 hash:
21eddbcb73ce4459f8ea8fa3cd09c186a9dd1343
SH256 hash:
92c3305e84b9e4d5adee76953281f93e3431b8a7977fa310465bd274294b6e63
MD5 hash:
01c6872d6a0ba56478b5e30e0fbba551
SHA1 hash:
2f5f934e56adee075fd1268e7d0ce0e09cf960b4
SH256 hash:
d3d3224b50e7ff955cba76e05f5058471add627c6f15658420146040192b3e1b
MD5 hash:
61f30fea94c55ee3199526448a73e58f
SHA1 hash:
71c175173df87bda7ffc77b2208b28f04bbdc628
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:BobSoftMiniDelphiBoBBobSoft
Author:malware-lu
Rule name:Borland
Author:malware-lu
Rule name:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns

File information


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

Malspam

GCleaner

Executable exe 21ac6f3276c975f9c867dcb924d8c2b7781d2d8ab5abe67d5f3e96786e259299

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments