gcleaner | 4b0e4fd6806fe1cd9dd277211a3aa9ab0510a3795355190acf8a84f6a2e5a508

Analysis

max time kernel
78s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
08/03/2023, 19:40

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General

Target
d554d767e490e4a920b0efde009c1ee2.exe
Size 276KB
Sample230308-ydhmtsff21
SHA256 4b0e4fd6806fe1cd9dd277211a3aa9ab0510a3795355190acf8a84f6a2e5a508
MD5 d554d767e490e4a920b0efde009c1ee2
SHA1 685f5852949a32832eb38314a699b7697550ad2d
SHA512 5643111c5370d9afdc677ade1e168bfd90ff0f518ad6d680c5b053336df7e88a20e34efd03352dda53931b0d87bcad484184036a7a9af8e4aa6927082862d888
SSDEEP 6144:IzaompYs/FnG2Hq9h8GE2u73uySVApc+:uEYs/hG2K9hjeSK
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

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

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

pid	pid_target	Process	procid_target
2936	3316	WerFault.exe	85
1152	3316	WerFault.exe	85
1140	3316	WerFault.exe	85
2484	3316	WerFault.exe	85
4600	3316	WerFault.exe	85
4620	3316	WerFault.exe	85
2728	3316	WerFault.exe	85
4160	3316	WerFault.exe	85
4812	3316	WerFault.exe	85

Kills process with taskkill 1 IoCs

evasion

pid	Process
4916	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4916	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3316 wrote to memory of 1820	3316	d554d767e490e4a920b0efde009c1ee2.exe	107
PID 3316 wrote to memory of 1820	3316	d554d767e490e4a920b0efde009c1ee2.exe	107
PID 3316 wrote to memory of 1820	3316	d554d767e490e4a920b0efde009c1ee2.exe	107
PID 1820 wrote to memory of 4916	1820	cmd.exe	111
PID 1820 wrote to memory of 4916	1820	cmd.exe	111
PID 1820 wrote to memory of 4916	1820	cmd.exe	111

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

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Download

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