gcleaner | 343dd59523f02e282a83c336c051e6902d3b5a3c2d5f9de628d7b5fefb61c8ae

General

Target

bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.exe
Size

273KB
MD5

bd6da92bd52d003123cbc4759dec1002
SHA1

9dafebf9cfdc15cd54c56b767b07b0d7944d1f92
SHA256

bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5
SHA512

9c7867046c173643f150a322a95f830c0a04c2bc50b72925ffb87dbf11188d54d3152d855e6741e3b107f0c92dc9e037e421d531ad2921226fe0b71042ede302
SSDEEP

6144:BqgzUOOHyHYY9CU3v/fQ1Buu48mVUKfm8XZdpqRI:BqgzyyHYY9CU3v/EBuu48iUQXAK

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:

bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation	bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.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

Processes:

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

pid	pid_target	process	target process
1896	3932	WerFault.exe	bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.exe
1592	3932	WerFault.exe	bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.exe
4436	3932	WerFault.exe	bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.exe
32	3932	WerFault.exe	bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.exe
5000	3932	WerFault.exe	bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.exe
1000	3932	WerFault.exe	bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.exe
4268	3932	WerFault.exe	bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

5052 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 5052 taskkill.exe

pid	process
5052	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	5052	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.execmd.exe

description	pid	process	target process
PID 3932 wrote to memory of 2436	3932	bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.exe	cmd.exe
PID 3932 wrote to memory of 2436	3932	bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.exe	cmd.exe
PID 3932 wrote to memory of 2436	3932	bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.exe	cmd.exe
PID 2436 wrote to memory of 5052	2436	cmd.exe	taskkill.exe
PID 2436 wrote to memory of 5052	2436	cmd.exe	taskkill.exe
PID 2436 wrote to memory of 5052	2436	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.exe
"C:\Users\Admin\AppData\Local\Temp\bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3932
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3932 -s 684
  2⤵
  - Program crash
  PID:1896
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3932 -s 820
  2⤵
  - Program crash
  PID:1592
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3932 -s 924
  2⤵
  - Program crash
  PID:4436
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3932 -s 808
  2⤵
  - Program crash
  PID:32
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3932 -s 924
  2⤵
  - Program crash
  PID:5000
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3932 -s 948
  2⤵
  - Program crash
  PID:1000
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2436
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "bf1da988e71f4e6b5aa9ad169d1637ac47ac43b548fdb1173733922d620572c5.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:5052
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3932 -s 740
  2⤵
  - Program crash
  PID:4268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3932 -ip 3932
1⤵
PID:2840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3932 -ip 3932
1⤵
PID:644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3932 -ip 3932
1⤵
PID:2908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3932 -ip 3932
1⤵
PID:2264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3932 -ip 3932
1⤵
PID:116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 3932 -ip 3932
1⤵
PID:2920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3932 -ip 3932
1⤵
PID:4336

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/3932-134-0x0000000000720000-0x0000000000760000-memory.dmp

Filesize
256KB

Download
memory/3932-135-0x0000000000400000-0x0000000000588000-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