gcleaner | 47d8f6afcc2182f5af9398fe971e42a5b2dcc08506fd0d69ef0b938615e7d488

General

Target

ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe
Size

264KB
MD5

eea01ea8e153688c3526ba719db41e4a
SHA1

cd618f3d4988e1eb4927b3586a45654954e9e8b4
SHA256

ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9
SHA512

887b28fea13daab34bea6ee8b34dff8b9e8559879a426702ab140bc240f2d0aeaf768fdbd303a6de137dc8abffa222d2537669ee0bddc4c438605a6fff44acd4
SSDEEP

3072:O/rtOYPo98S5fAlHfu6ctbqYX18hvgJrv2Tk+CQK1iCrvnAbUeypMs+okF:DMoaS5DSo72AX+CrvAQgs+h

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:

ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation	ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.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
1844	2116	WerFault.exe	ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe
2308	2116	WerFault.exe	ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe
964	2116	WerFault.exe	ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe
2528	2116	WerFault.exe	ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe
4804	2116	WerFault.exe	ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe
4056	2116	WerFault.exe	ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe
4044	2116	WerFault.exe	ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe
4272	2116	WerFault.exe	ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe
2812	2116	WerFault.exe	ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

448 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 448 taskkill.exe

pid	process
448	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	448	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.execmd.exe

description	pid	process	target process
PID 2116 wrote to memory of 4760	2116	ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe	cmd.exe
PID 2116 wrote to memory of 4760	2116	ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe	cmd.exe
PID 2116 wrote to memory of 4760	2116	ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe	cmd.exe
PID 4760 wrote to memory of 448	4760	cmd.exe	taskkill.exe
PID 4760 wrote to memory of 448	4760	cmd.exe	taskkill.exe
PID 4760 wrote to memory of 448	4760	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe
"C:\Users\Admin\AppData\Local\Temp\ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 456
  2⤵
  - Program crash
  PID:1844
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 776
  2⤵
  - Program crash
  PID:2308
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 812
  2⤵
  - Program crash
  PID:964
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 796
  2⤵
  - Program crash
  PID:2528
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 788
  2⤵
  - Program crash
  PID:4804
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 928
  2⤵
  - Program crash
  PID:4056
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 928
  2⤵
  - Program crash
  PID:4044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 1356
  2⤵
  - Program crash
  PID:4272
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4760
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "ec4a3b4195a3e96b2368b55ebb4c3c64e07a2d84e8f5b8a501b0547473ebf9d9.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:448
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 1448
  2⤵
  - Program crash
  PID:2812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2116 -ip 2116
1⤵
PID:3016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2116 -ip 2116
1⤵
PID:3844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2116 -ip 2116
1⤵
PID:3056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2116 -ip 2116
1⤵
PID:2536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2116 -ip 2116
1⤵
PID:536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2116 -ip 2116
1⤵
PID:1064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2116 -ip 2116
1⤵
PID:4876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2116 -ip 2116
1⤵
PID:3440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2116 -ip 2116
1⤵
PID:1076

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/2116-134-0x0000000000530000-0x0000000000570000-memory.dmp

Filesize
256KB

Download
memory/2116-135-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2116-139-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads