MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b3906f6e5109bec6501f12b7786a628fb232e6ed7c0957ed183360ce7bd452a. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1b3906f6e5109bec6501f12b7786a628fb232e6ed7c0957ed183360ce7bd452a
SHA3-384 hash: ff10bd97a44d3a7e8845af63df1acaaf5c55f4981ad348f1f36d0127040ab5a73ebe066a5b89b7bca6a18f51fc3990e0
SHA1 hash: 483afba751b8bd49c61f6ed52fd58a1ac9924cea
MD5 hash: 292037d48c86be45c2380b4c7f9f5a12
humanhash: friend-september-indigo-high
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'205'684 bytes
First seen:2023-03-23 02:40:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'496 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:EGlJfsNvVrVIRpiY2WwKPLNRyOXytf4ARwhudNJiFAJXM5dlLYp:5SvVrjpWlPxglQARNNJig2PYp
Threatray 2'137 similar samples on MalwareBazaar
TLSH T1CDA53343F3461DFADAF3F9701E25BE6A9702BE05B93D20BCA41E498A1F2E4D0944D785
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 andretavare5
Tags:exe gcleaner


Avatar
andretavare5
Sample downloaded from http://45.12.253.74/pineapple.php?pub=mixinte

Intelligence

File Origin
# of uploads :
1
# of downloads :
324
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
stop
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-03-23 02:42:08 UTC
Tags:
installer loader gcleaner ransomware stop cryptbot rat redline
Link:
https://app.any.run/tasks/e55e5ef7-62a5-44fd-a9f7-981ec02756b4

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/376740/
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
Sending a custom TCP 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 process
Launching a tool to kill processes
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
83%
Tags:
greyware installer overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/641bbc3ff8dd0701d53c1bb2/reports/51e51a74-496d-4d2d-9faa-3b588e9ef9a2/overview
Verdict:
Malicious
Labled as:
HEUR/AGEN.1333117
Link:
https://www.hybrid-analysis.com/sample/1b3906f6e5109bec6501f12b7786a628fb232e6ed7c0957ed183360ce7bd452a
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/43352ad3-5db5-4bb9-af26-ff20b4bbc2a4
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1200059
Signature
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)
Machine Learning detection for dropped file
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Snort IDS alert for network traffic
Yara detected Nymaim
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 832964 Sample: file.exe Startdate: 23/03/2023 Architecture: WINDOWS Score: 100 47 45.12.253.98 CMCSUS Germany 2->47 49 Snort IDS alert for network traffic 2->49 51 Multi AV Scanner detection for domain / URL 2->51 53 Antivirus detection for URL or domain 2->53 55 6 other signatures 2->55 10 file.exe 2 2->10         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\...\is-9OIRU.tmp, PE32 10->31 dropped 13 is-9OIRU.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 FRec322.exe 24 13->16         started        process8 dnsIp9 41 45.12.253.56, 49696, 80 CMCSUS Germany 16->41 43 45.12.253.72, 49697, 80 CMCSUS Germany 16->43 45 45.12.253.75, 49698, 80 CMCSUS Germany 16->45 29 C:\Users\user\AppData\...\zWEXhsfKc6GO.exe, PE32 16->29 dropped 20 zWEXhsfKc6GO.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/1b3906f6e5109bec6501f12b7786a628fb232e6ed7c0957ed183360ce7bd452a/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Suspicious
First seen:
2023-03-23 02:41:11 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dm4qn5xfccn6yzib6evxpbvgfd5sglto27ajk7wrqm3azz55iuva._file
Verdict:
malicious
Similar samples:
1ed63828c472771cf59e95852088a702e381e3350d9c4cf831ca102d922e611a
GCleaner
5621cd4a0de05cddb766e3cfb98392bf50f6ee2e9f9befc62e9961788e193c22
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59d0992382ba2953514858b563ede4cbb4015af18494539bfb9be2d47a0c2270
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665687b64c26cd4019dd0e43415dd4978c2ed59c7c897462f3cd64c4920e380b
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83660b75c4e4dc6041398055ea66a6815b0b8144551aa4d45fda83c05dba9277
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84cc827150e0aeb82f1e7b4abd98332c49b45be6ac8f4df9fbd516633c452d0f
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8a58ec8781e8b2835a2d33a6a4412b4ce0674be037eba31a55c8cefe56c903c1
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a41e45e14795bb60ef20aa47780ddd8cdc491e7e23c16594a7af91c4f3e817cd
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f9757bc4b64757aade6871dbdcb59d64ad51a7dee7f30834e27c6bda5f3b201a
GCleaner
+ 2'127 additional samples on MalwareBazaar
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner discovery loader
Link:
https://tria.ge/reports/230323-c6e7hsdb34/
Behaviour
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
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:
83845ed9cae80fe041e5a6b98d15bfe2a2dd01da8c89de8aadec1a31863f4ac5
MD5 hash:
26a8450a5dbeb842cbe454cdd504327f
SHA1 hash:
0f9c6a7dbd7318bacbe32a57694d7b76011c41aa
Detections:
Nymaim
Create hunting rule
win_nymaim_g0
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/df381723-b085-44c3-985e-ab88dc3e4b57/
SH256 hash:
13ce2274174fc341b82c68d547bec4f11d1c5e3afecf38c180c421b55e802f36
MD5 hash:
bdfc9d0e1f8a8d51a29051df3a0d214b
SHA1 hash:
a0cd804e9bde96e9851d6aabb3d9b1dada898b10
Link:
https://www.unpac.me/results/df381723-b085-44c3-985e-ab88dc3e4b57/
SH256 hash:
1b3906f6e5109bec6501f12b7786a628fb232e6ed7c0957ed183360ce7bd452a
MD5 hash:
292037d48c86be45c2380b4c7f9f5a12
SHA1 hash:
483afba751b8bd49c61f6ed52fd58a1ac9924cea
Link:
https://www.unpac.me/results/df381723-b085-44c3-985e-ab88dc3e4b57/
Malware family:
Djvu
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1b3906f6e510/report/overview.html
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: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.

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by
Cape
Cape
https://www.capesandbox.com/analysis/376740/
  
URLhaus
https://urlhaus.abuse.ch/url/2509470/

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