gcleaner | 995217d74a396e998546e4a9c5127900d423b4c9c349b5f9f8dba898b7fa139f

General

Target

94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.exe
Size

280KB
MD5

b5d2845d8527d553115463d631b1702d
SHA1

b63b39d1b3d2f477f965b460ebc05e765450723c
SHA256

94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76
SHA512

08fc0ba5967ecc8ff3b4442d59666913b0b704d8e172d34545ac6afcb9b041f93e30f807dd240d6baa76fc2ba56c2a825e6d27bbb755c0cffb841878d2174b08
SSDEEP

6144:ZOLRv3eI/62feWK3az1MbbhOXXASgyA591:k9vf62fS3MSbgndS

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:

94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\International\Geo\Nation	94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.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 8 IoCs

Processes:

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

pid	pid_target	process	target process
4984	3236	WerFault.exe	94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.exe
4896	3236	WerFault.exe	94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.exe
4304	3236	WerFault.exe	94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.exe
4736	3236	WerFault.exe	94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.exe
3392	3236	WerFault.exe	94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.exe
2640	3236	WerFault.exe	94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.exe
2124	3236	WerFault.exe	94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.exe
2084	3236	WerFault.exe	94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2236 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2236 taskkill.exe

pid	process
2236	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2236	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.execmd.exe

description	pid	process	target process
PID 3236 wrote to memory of 4600	3236	94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.exe	cmd.exe
PID 3236 wrote to memory of 4600	3236	94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.exe	cmd.exe
PID 3236 wrote to memory of 4600	3236	94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.exe	cmd.exe
PID 4600 wrote to memory of 2236	4600	cmd.exe	taskkill.exe
PID 4600 wrote to memory of 2236	4600	cmd.exe	taskkill.exe
PID 4600 wrote to memory of 2236	4600	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.exe
"C:\Users\Admin\AppData\Local\Temp\94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3236
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3236 -s 708
  2⤵
  - Program crash
  PID:4984
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3236 -s 780
  2⤵
  - Program crash
  PID:4896
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3236 -s 920
  2⤵
  - Program crash
  PID:4304
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3236 -s 700
  2⤵
  - Program crash
  PID:4736
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3236 -s 696
  2⤵
  - Program crash
  PID:3392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3236 -s 912
  2⤵
  - Program crash
  PID:2640
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3236 -s 948
  2⤵
  - Program crash
  PID:2124
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4600
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "94551b68fcb65d49a5d1d29a0dba5ec3f2e98252fef337a4fba2416ecb8cea76.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2236
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3236 -s 1000
  2⤵
  - Program crash
  PID:2084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3236 -ip 3236
1⤵
PID:2836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3236 -ip 3236
1⤵
PID:4824

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3236 -ip 3236
1⤵
PID:3180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3236 -ip 3236
1⤵
PID:4672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3236 -ip 3236
1⤵
PID:4964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3236 -ip 3236
1⤵
PID:3796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 3236 -ip 3236
1⤵
PID:1916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 3236 -ip 3236
1⤵
PID:4532

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/3236-134-0x0000000002360000-0x00000000023A0000-memory.dmp

Filesize
256KB

Download
memory/3236-135-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads