gcleaner | 04d92877f99c177d348c2c51173303ab27b02989a23c5377105a33394730dfb0

Analysis

max time kernel
137s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
15/02/2023, 13:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

30c67e476b26bcb2e4bbfa5a6dfce89c.exe
Size

275KB
MD5

30c67e476b26bcb2e4bbfa5a6dfce89c
SHA1

7dd773c04ae06cf57ca00d883b33d0eb1dbecf59
SHA256

04d92877f99c177d348c2c51173303ab27b02989a23c5377105a33394730dfb0
SHA512

dbeec6710dfca8150929fb043dfb44fc9eea2b71b58536e9f3f47bda8189e41ca760759af1d0284a9d88b801f23b97533d69bf0386e2d53eaf7b02b7282e5490
SSDEEP

3072:TqaW5aiXxr+eLjuC0E0kDwIYeHnPRluTb1kzbdV1zrphQvlfXle2OiQaV:TK5a0B+eLjR1YeHntbJRhQvbnOiQ

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-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	30c67e476b26bcb2e4bbfa5a6dfce89c.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 7 IoCs

pid	pid_target	Process	procid_target
1836	2236	WerFault.exe	82
3636	2236	WerFault.exe	82
3864	2236	WerFault.exe	82
2276	2236	WerFault.exe	82
3260	2236	WerFault.exe	82
224	2236	WerFault.exe	82
4472	2236	WerFault.exe	82

Kills process with taskkill 1 IoCs

evasion

pid	Process
1260	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1260	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 396	2236	30c67e476b26bcb2e4bbfa5a6dfce89c.exe	96
PID 2236 wrote to memory of 396	2236	30c67e476b26bcb2e4bbfa5a6dfce89c.exe	96
PID 2236 wrote to memory of 396	2236	30c67e476b26bcb2e4bbfa5a6dfce89c.exe	96
PID 396 wrote to memory of 1260	396	cmd.exe	100
PID 396 wrote to memory of 1260	396	cmd.exe	100
PID 396 wrote to memory of 1260	396	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\30c67e476b26bcb2e4bbfa5a6dfce89c.exe
"C:\Users\Admin\AppData\Local\Temp\30c67e476b26bcb2e4bbfa5a6dfce89c.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2236 -s 688
  2⤵
  - Program crash
  PID:1836
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2236 -s 756
  2⤵
  - Program crash
  PID:3636
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2236 -s 788
  2⤵
  - Program crash
  PID:3864
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2236 -s 788
  2⤵
  - Program crash
  PID:2276
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2236 -s 924
  2⤵
  - Program crash
  PID:3260
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2236 -s 932
  2⤵
  - Program crash
  PID:224
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "30c67e476b26bcb2e4bbfa5a6dfce89c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\30c67e476b26bcb2e4bbfa5a6dfce89c.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:396
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "30c67e476b26bcb2e4bbfa5a6dfce89c.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1260
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2236 -s 1104
  2⤵
  - Program crash
  PID:4472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2236 -ip 2236
1⤵
PID:1712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2236 -ip 2236
1⤵
PID:2032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2236 -ip 2236
1⤵
PID:2124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2236 -ip 2236
1⤵
PID:4876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2236 -ip 2236
1⤵
PID:4592

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2236 -ip 2236
1⤵
PID:112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 2236 -ip 2236
1⤵
PID:2676

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

Loading Replay Monitor...

Downloads

memory/2236-132-0x00000000005D8000-0x00000000005FF000-memory.dmp

Filesize
156KB

Download
memory/2236-133-0x00000000006F0000-0x0000000000730000-memory.dmp

Filesize
256KB

Download
memory/2236-134-0x0000000000400000-0x0000000000577000-memory.dmp

Filesize
1.5MB

Download
memory/2236-137-0x00000000005D8000-0x00000000005FF000-memory.dmp

Filesize
156KB

Download
memory/2236-138-0x0000000000400000-0x0000000000577000-memory.dmp

Filesize
1.5MB

Download