gcleaner | f5fc81b7f341f813d8ed29f293c0d65cc266f3d6ddec7db58b06115993bb642c

General

Target

8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe
Size

273KB
MD5

bfe0a34bb6494a9b1e866efe97ccd11b
SHA1

2222524e5bf603c3166ed445ae5f94f2ebe1fc6e
SHA256

8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5
SHA512

9520cace14670c5aff3fcad7476c231d04b4a8b152f0af12cabbcc1a4947ca9007a2a65e3cf010e9a6dfd0f2388cc58def7d8e28338c3f516c0733613e28111c
SSDEEP

6144:5qgB6W89GHqzCzKDJUF3sIcqZi5WZbvEeTqa48Hd/:5qgB6bGHqzCGUF3niUHz485

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:

8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation	8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.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 10 IoCs

Processes:

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

pid	pid_target	process	target process
3200	3548	WerFault.exe	8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe
4500	3548	WerFault.exe	8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe
4472	3548	WerFault.exe	8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe
4912	3548	WerFault.exe	8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe
708	3548	WerFault.exe	8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe
3676	3548	WerFault.exe	8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe
3196	3548	WerFault.exe	8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe
4648	3548	WerFault.exe	8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe
2924	3548	WerFault.exe	8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe
3744	3548	WerFault.exe	8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3748 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3748 taskkill.exe

pid	process
3748	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3748	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.execmd.exe

description	pid	process	target process
PID 3548 wrote to memory of 4316	3548	8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe	cmd.exe
PID 3548 wrote to memory of 4316	3548	8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe	cmd.exe
PID 3548 wrote to memory of 4316	3548	8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe	cmd.exe
PID 4316 wrote to memory of 3748	4316	cmd.exe	taskkill.exe
PID 4316 wrote to memory of 3748	4316	cmd.exe	taskkill.exe
PID 4316 wrote to memory of 3748	4316	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe
"C:\Users\Admin\AppData\Local\Temp\8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3548 -s 456
  2⤵
  - Program crash
  PID:3200
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3548 -s 772
  2⤵
  - Program crash
  PID:4500
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3548 -s 792
  2⤵
  - Program crash
  PID:4472
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3548 -s 792
  2⤵
  - Program crash
  PID:4912
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3548 -s 848
  2⤵
  - Program crash
  PID:708
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3548 -s 932
  2⤵
  - Program crash
  PID:3676
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3548 -s 964
  2⤵
  - Program crash
  PID:3196
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3548 -s 1076
  2⤵
  - Program crash
  PID:4648
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3548 -s 1368
  2⤵
  - Program crash
  PID:2924
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4316
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "8a2ed465f876e200314451371c46e38ddb7dae622efe7f60bb7d58d9291651d5.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3748
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3548 -s 1488
  2⤵
  - Program crash
  PID:3744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3548 -ip 3548
1⤵
PID:396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3548 -ip 3548
1⤵
PID:212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3548 -ip 3548
1⤵
PID:3992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3548 -ip 3548
1⤵
PID:1552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3548 -ip 3548
1⤵
PID:3328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3548 -ip 3548
1⤵
PID:816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3548 -ip 3548
1⤵
PID:3420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3548 -ip 3548
1⤵
PID:2880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3548 -ip 3548
1⤵
PID:1784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3548 -ip 3548
1⤵
PID:3608

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/3548-134-0x00000000007E0000-0x0000000000820000-memory.dmp

Filesize
256KB

Download
memory/3548-135-0x0000000000400000-0x0000000000588000-memory.dmp

Filesize
1.5MB

Download
memory/3548-136-0x00000000007E0000-0x0000000000820000-memory.dmp

Filesize
256KB

Download
memory/3548-139-0x0000000000400000-0x0000000000588000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads