gcleaner | 9878225ece1bd66b2fc3063fa4ee3c23d083b72d55585eeb87589b4ef58ca720

General

Target

b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.exe
Size

270KB
MD5

5c82f9d43748af8b52b4d11ea71cb323
SHA1

51ecf6fc4f4e13f1a7634ae2e09b0ef3549a5be1
SHA256

b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031
SHA512

a239232cc62cafc258ea1617b5a0364cf4d7f12b95e277cb486136f50d3666948923581c48e7762789d2c32941a225a9d55184d0cee311e84d320d57e16e42eb
SSDEEP

6144:Bpr91XKOC5bWr/gvbh4XcqXft+hCmaX/uqt:BTxjC5bIIvbeVvtAZuG

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

45.12.253.56

45.12.253.72

45.12.253.98

45.12.253.75

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation	b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 7 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
3480	1656	WerFault.exe	b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.exe
2520	1656	WerFault.exe	b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.exe
3200	1656	WerFault.exe	b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.exe
4852	1656	WerFault.exe	b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.exe
4716	1656	WerFault.exe	b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.exe
2164	1656	WerFault.exe	b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.exe
4708	1656	WerFault.exe	b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2776 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2776 taskkill.exe

pid	process
2776	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2776	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.execmd.exe

description	pid	process	target process
PID 1656 wrote to memory of 2024	1656	b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.exe	cmd.exe
PID 1656 wrote to memory of 2024	1656	b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.exe	cmd.exe
PID 1656 wrote to memory of 2024	1656	b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.exe	cmd.exe
PID 2024 wrote to memory of 2776	2024	cmd.exe	taskkill.exe
PID 2024 wrote to memory of 2776	2024	cmd.exe	taskkill.exe
PID 2024 wrote to memory of 2776	2024	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.exe
"C:\Users\Admin\AppData\Local\Temp\b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1656
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 704
  2⤵
  - Program crash
  PID:3480
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 784
  2⤵
  - Program crash
  PID:2520
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 936
  2⤵
  - Program crash
  PID:3200
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 972
  2⤵
  - Program crash
  PID:4852
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 996
  2⤵
  - Program crash
  PID:4716
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 992
  2⤵
  - Program crash
  PID:2164
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2024
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "b024a39550e5668bff7fe4d1cacb83c770c7b21d1b5a52bf81acb847c7414031.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2776
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 1044
  2⤵
  - Program crash
  PID:4708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1656 -ip 1656
1⤵
PID:228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1656 -ip 1656
1⤵
PID:3120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1656 -ip 1656
1⤵
PID:1796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1656 -ip 1656
1⤵
PID:3020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 1656 -ip 1656
1⤵
PID:4352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 1656 -ip 1656
1⤵
PID:1540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 1656 -ip 1656
1⤵
PID:448

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1656-134-0x00000000021B0000-0x00000000021F0000-memory.dmp

Filesize
256KB

Download
memory/1656-135-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/1656-136-0x00000000021B0000-0x00000000021F0000-memory.dmp

Filesize
256KB

Download
memory/1656-138-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads