gcleaner | 4b0e4fd6806fe1cd9dd277211a3aa9ab0510a3795355190acf8a84f6a2e5a508

General

Target

d554d767e490e4a920b0efde009c1ee2.exe
Size

276KB
MD5

d554d767e490e4a920b0efde009c1ee2
SHA1

685f5852949a32832eb38314a699b7697550ad2d
SHA256

4b0e4fd6806fe1cd9dd277211a3aa9ab0510a3795355190acf8a84f6a2e5a508
SHA512

5643111c5370d9afdc677ade1e168bfd90ff0f518ad6d680c5b053336df7e88a20e34efd03352dda53931b0d87bcad484184036a7a9af8e4aa6927082862d888
SSDEEP

6144:IzaompYs/FnG2Hq9h8GE2u73uySVApc+:uEYs/hG2K9hjeSK

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:

d554d767e490e4a920b0efde009c1ee2.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	d554d767e490e4a920b0efde009c1ee2.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 9 IoCs

Processes:

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

pid	pid_target	process	target process
2936	3316	WerFault.exe	d554d767e490e4a920b0efde009c1ee2.exe
1152	3316	WerFault.exe	d554d767e490e4a920b0efde009c1ee2.exe
1140	3316	WerFault.exe	d554d767e490e4a920b0efde009c1ee2.exe
2484	3316	WerFault.exe	d554d767e490e4a920b0efde009c1ee2.exe
4600	3316	WerFault.exe	d554d767e490e4a920b0efde009c1ee2.exe
4620	3316	WerFault.exe	d554d767e490e4a920b0efde009c1ee2.exe
2728	3316	WerFault.exe	d554d767e490e4a920b0efde009c1ee2.exe
4160	3316	WerFault.exe	d554d767e490e4a920b0efde009c1ee2.exe
4812	3316	WerFault.exe	d554d767e490e4a920b0efde009c1ee2.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4916 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4916 taskkill.exe

pid	process
4916	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4916	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

d554d767e490e4a920b0efde009c1ee2.execmd.exe

description	pid	process	target process
PID 3316 wrote to memory of 1820	3316	d554d767e490e4a920b0efde009c1ee2.exe	cmd.exe
PID 3316 wrote to memory of 1820	3316	d554d767e490e4a920b0efde009c1ee2.exe	cmd.exe
PID 3316 wrote to memory of 1820	3316	d554d767e490e4a920b0efde009c1ee2.exe	cmd.exe
PID 1820 wrote to memory of 4916	1820	cmd.exe	taskkill.exe
PID 1820 wrote to memory of 4916	1820	cmd.exe	taskkill.exe
PID 1820 wrote to memory of 4916	1820	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\d554d767e490e4a920b0efde009c1ee2.exe
"C:\Users\Admin\AppData\Local\Temp\d554d767e490e4a920b0efde009c1ee2.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3316
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3316 -s 464
  2⤵
  - Program crash
  PID:2936
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3316 -s 768
  2⤵
  - Program crash
  PID:1152
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3316 -s 788
  2⤵
  - Program crash
  PID:1140
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3316 -s 768
  2⤵
  - Program crash
  PID:2484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3316 -s 864
  2⤵
  - Program crash
  PID:4600
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3316 -s 928
  2⤵
  - Program crash
  PID:4620
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3316 -s 1000
  2⤵
  - Program crash
  PID:2728
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3316 -s 1376
  2⤵
  - Program crash
  PID:4160
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "d554d767e490e4a920b0efde009c1ee2.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\d554d767e490e4a920b0efde009c1ee2.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1820
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "d554d767e490e4a920b0efde009c1ee2.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4916
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3316 -s 1408
  2⤵
  - Program crash
  PID:4812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3316 -ip 3316
1⤵
PID:3768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3316 -ip 3316
1⤵
PID:320

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3316 -ip 3316
1⤵
PID:3688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3316 -ip 3316
1⤵
PID:448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 3316 -ip 3316
1⤵
PID:3664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3316 -ip 3316
1⤵
PID:4876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3316 -ip 3316
1⤵
PID:4524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3316 -ip 3316
1⤵
PID:3344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 3316 -ip 3316
1⤵
PID:3220

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/3316-134-0x00000000021B0000-0x00000000021F0000-memory.dmp

Filesize
256KB

Download
memory/3316-136-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads