gcleaner | aac98fd8f667b58ae3d47c4198612e0896236a39191dfcf79fd430ec7687039e

General

Target

43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe
Size

331KB
MD5

2cb08ca754964460e0c6d81e1250c974
SHA1

7f62b1284addc0f579b2ca240352027711d021f0
SHA256

43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3
SHA512

c00361862d1977e1a591a0a2ef21bc35aee37a97ff55ecffeb632a850000456613d497fa76e23a7e676473fd9a4bc325a0443a7bcf95fda512e3a08e314785ad
SSDEEP

6144:H5XlqHQCFVZqVFbFso4D3N/B3yoGkaFtZWfdW4TE3v1144C0K:H9sHQCFVQVFb095CGaFtZ4dW1cn

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:

43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.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 10 IoCs

Processes:

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

pid	pid_target	process	target process
2128	740	WerFault.exe	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe
3916	740	WerFault.exe	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe
2552	740	WerFault.exe	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe
4888	740	WerFault.exe	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe
2660	740	WerFault.exe	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe
4720	740	WerFault.exe	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe
1828	740	WerFault.exe	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe
3180	740	WerFault.exe	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe
3544	740	WerFault.exe	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe
3164	740	WerFault.exe	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1604 taskkill.exe

pid	process
1604	taskkill.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe

pid	process
740	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe
740	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1604 taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1604	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.execmd.exe

description	pid	process	target process
PID 740 wrote to memory of 1492	740	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe	cmd.exe
PID 740 wrote to memory of 1492	740	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe	cmd.exe
PID 740 wrote to memory of 1492	740	43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe	cmd.exe
PID 1492 wrote to memory of 1604	1492	cmd.exe	taskkill.exe
PID 1492 wrote to memory of 1604	1492	cmd.exe	taskkill.exe
PID 1492 wrote to memory of 1604	1492	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe
"C:\Users\Admin\AppData\Local\Temp\43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 740 -s 452
  2⤵
  - Program crash
  PID:2128
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 740 -s 764
  2⤵
  - Program crash
  PID:3916
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 740 -s 784
  2⤵
  - Program crash
  PID:2552
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 740 -s 784
  2⤵
  - Program crash
  PID:4888
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 740 -s 764
  2⤵
  - Program crash
  PID:2660
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 740 -s 928
  2⤵
  - Program crash
  PID:4720
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 740 -s 1004
  2⤵
  - Program crash
  PID:1828
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 740 -s 932
  2⤵
  - Program crash
  PID:3180
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 740 -s 1364
  2⤵
  - Program crash
  PID:3544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1492
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "43c684cde21885bd1a7add14846c6ce0ab374a6ff7163b655ec80186620770d3.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1604
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 740 -s 1388
  2⤵
  - Program crash
  PID:3164

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 740 -ip 740
1⤵
PID:980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 740 -ip 740
1⤵
PID:5012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 740 -ip 740
1⤵
PID:4328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 740 -ip 740
1⤵
PID:3948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 740 -ip 740
1⤵
PID:1572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 740 -ip 740
1⤵
PID:3368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 392 -p 740 -ip 740
1⤵
PID:1432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 740 -ip 740
1⤵
PID:2040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 740 -ip 740
1⤵
PID:772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 740 -ip 740
1⤵
PID:2320

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/740-134-0x0000000000730000-0x0000000000770000-memory.dmp

Filesize
256KB

Download
memory/740-136-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads