MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a58ec8781e8b2835a2d33a6a4412b4ce0674be037eba31a55c8cefe56c903c1. 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 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8a58ec8781e8b2835a2d33a6a4412b4ce0674be037eba31a55c8cefe56c903c1
SHA3-384 hash: 35e0149a9c0498df03aac7d944fb8e94c5d288a4742ec3a0d338d88e9148229b8bde6810192d14276a44f4f81d39b56a
SHA1 hash: c1029b86bb35cb202bb34a75dba3213acddab7b7
MD5 hash: bff65ec63e4cc671151742fc54112927
humanhash: triple-hydrogen-floor-virginia
File name:bff65ec63e4cc671151742fc54112927
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'722'465 bytes
First seen:2023-03-17 19:24:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'446 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:EGlJfslgHZ8h7Dbm+Q6doaFMvOUfRop2qFIHmoorD3HbfuhkmtN5dlLYp:52tm+Q6doaFMl+uKDDidPYp
Threatray 3 similar samples on MalwareBazaar
TLSH T110C5334FE25D80B0D2F36B705DB987048727FE8F0A1C688CA5CD764EDB74299845D3A6
TrID 50.3% (.EXE) Win32 Executable PowerBASIC/Win 9.x (148303/79/28)
37.2% (.EXE) Inno Setup installer (109740/4/30)
4.8% (.EXE) Win32 Executable Delphi generic (14182/79/4)
2.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b298acbab2ca7a72 (2'327 x GCleaner, 1'631 x Socks5Systemz, 67 x RedLineStealer)
Reporter zbetcheckin
Tags:32 exe gcleaner

Intelligence

File Origin
# of uploads :
1
# of downloads :
353
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
bff65ec63e4cc671151742fc54112927
Verdict:
Malicious activity
Analysis date:
2023-03-17 19:24:57 UTC
Tags:
installer gcleaner
Link:
https://app.any.run/tasks/d0ef0326-85e5-47ef-ac30-32b83899ef43

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/375227/
Detection(s):
SecuriteInfo.com.TR.Spy.KGBSpy.1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for the window
Creating a file in the Program Files subdirectories
Moving a file to the Program Files subdirectory
Modifying a system file
Creating a file in the %AppData% subdirectories
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Creating a file in the Windows subdirectories
Launching a tool to kill processes
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/73678/overview
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware installer overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6414be902fbc9ad18a02f1d3/reports/0371c10d-feab-4dd1-8c0f-e205edb38589/overview
Verdict:
Malicious
Labled as:
HEUR/AGEN.1251208
Link:
https://www.hybrid-analysis.com/sample/8a58ec8781e8b2835a2d33a6a4412b4ce0674be037eba31a55c8cefe56c903c1
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/9a1872bf-037b-475a-b0b0-50c63a3fb1b7
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1196203
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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)
Machine Learning detection for dropped file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Yara detected Nymaim
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 829109 Sample: CHK3ZfSC9j.exe Startdate: 17/03/2023 Architecture: WINDOWS Score: 100 47 45.12.253.98 CMCSUS Germany 2->47 49 Snort IDS alert for network traffic 2->49 51 Antivirus detection for URL or domain 2->51 53 Antivirus detection for dropped file 2->53 55 7 other signatures 2->55 10 CHK3ZfSC9j.exe 2 2->10         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\...\is-BL99K.tmp, PE32 10->31 dropped 13 is-BL99K.tmp 15 24 10->13         started        process6 file7 33 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 13->33 dropped 35 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 13->35 dropped 37 C:\...\unins000.exe (copy), PE32 13->37 dropped 39 6 other files (4 malicious) 13->39 dropped 16 FRec317.exe 24 13->16         started        process8 dnsIp9 41 45.12.253.56, 49683, 80 CMCSUS Germany 16->41 43 45.12.253.72, 49684, 80 CMCSUS Germany 16->43 45 45.12.253.75, 49685, 80 CMCSUS Germany 16->45 29 C:\Users\user\AppData\Roaming\...\8kTnit.exe, PE32 16->29 dropped 20 8kTnit.exe 16->20         started        23 cmd.exe 1 16->23         started        file10 process11 signatures12 57 Multi AV Scanner detection for dropped file 20->57 25 taskkill.exe 1 23->25         started        27 conhost.exe 23->27         started        process13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8a58ec8781e8b2835a2d33a6a4412b4ce0674be037eba31a55c8cefe56c903c1/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Suspicious
First seen:
2023-03-17 19:25:08 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rjmozb4b5czigwrngotkiqjljtqgos7ag7v2ggsvzdhp4vwjapaq._file
Verdict:
malicious
Similar samples:
665687b64c26cd4019dd0e43415dd4978c2ed59c7c897462f3cd64c4920e380b
GCleaner
84cc827150e0aeb82f1e7b4abd98332c49b45be6ac8f4df9fbd516633c452d0f
GCleaner
db1800a95c8908bb39c03543f8ee553b838df5065c1195447f82c8305e1754c3
GCleaner
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner discovery loader
Link:
https://tria.ge/reports/230317-x4yajabf9v/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Enumerates physical storage devices
Drops file in Program Files directory
Checks installed software on the system
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
GCleaner
Malware Config
C2 Extraction:
45.12.253.56
45.12.253.72
45.12.253.98
45.12.253.75
Unpacked files
SH256 hash:
aac07b95e240a10d6aad1c5c89d6ad44774122f3de91fe90da7294d09b554656
MD5 hash:
3bdc497a56827424a1b254a5381700b3
SHA1 hash:
6c9626307edbdbf5053f63814993fdcadf574733
Detections:
Nymaim
Create hunting rule
win_nymaim_g0
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/87647917-6183-4c3e-8400-4693c78bcd24/
SH256 hash:
a5c9bbf248d57fb9f4ab965e31bf0e4925a47b1d9dbb4f880ff19ac1d969b539
MD5 hash:
399742c44342ad0f849adc7b156d3ffe
SHA1 hash:
49107c7d9e4a88d9697ac8b9333728f8876d907e
Link:
https://www.unpac.me/results/87647917-6183-4c3e-8400-4693c78bcd24/
SH256 hash:
8a58ec8781e8b2835a2d33a6a4412b4ce0674be037eba31a55c8cefe56c903c1
MD5 hash:
bff65ec63e4cc671151742fc54112927
SHA1 hash:
c1029b86bb35cb202bb34a75dba3213acddab7b7
Link:
https://www.unpac.me/results/87647917-6183-4c3e-8400-4693c78bcd24/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.98
Link:
https://yomi.yoroi.company/submissions/8a58ec8781e8b2835a2d33a6a4412b4ce0674be037eba31a55c8cefe56c903c1

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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:win_gcleaner_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.gcleaner.

File information

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

Web download

GCleaner

Executable exe 8a58ec8781e8b2835a2d33a6a4412b4ce0674be037eba31a55c8cefe56c903c1

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/375227/

Comments


Avatar
zbet commented on 2023-03-17 19:24:14 UTC

url : hxxp://45.12.253.74/pineapple.php?pub=mixinte/