gcleaner | cf9a5b156802037cb9c5638b04403d1cc6b2f0c40ad0a675af699a9ad49ab571

General

Target
cf9a5b156802037cb9c5638b04403d1cc6b2f0c40ad0a675af699a9ad49ab571.exe
Size 279KB
Sample240710-aj7bdawfmf
SHA256 cf9a5b156802037cb9c5638b04403d1cc6b2f0c40ad0a675af699a9ad49ab571
MD5 f746e1b69c6ddec58d4e3d4f790f23a9
SHA1 785fda23c4a470fcbaa5920096cae8b02150ab72
SHA512 2836c0eb726e8925d75697e22c1617af10ff1e830b6637457c840ff99182bbb2257886cde94cf64146659758f8877312f549c01446cea987d5bc2e1f4bc07451
SSDEEP 3072:YX4+61TLflELYn4EIdg22PZuMNZ/raAEzy+AqaUYMcmP0ObBzhIAiUDcGlUmwp8Y:Rf5xA2+aZnX2FaUZ3PrQAi6lUJp8TM
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90
77.105.160.30
185.172.128.69

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 10 IoCs

pid	pid_target	Process	procid_target
4612	2692	WerFault.exe	79
4892	2692	WerFault.exe	79
1380	2692	WerFault.exe	79
3320	2692	WerFault.exe	79
4616	2692	WerFault.exe	79
4848	2692	WerFault.exe	79
2316	2692	WerFault.exe	79
3440	2692	WerFault.exe	79
3872	2692	WerFault.exe	79
3368	2692	WerFault.exe	79

Kills process with taskkill 1 IoCs

evasion

pid	Process
2940	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2940	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2352	2692	cf9a5b156802037cb9c5638b04403d1cc6b2f0c40ad0a675af699a9ad49ab571.exe	106
PID 2692 wrote to memory of 2352	2692	cf9a5b156802037cb9c5638b04403d1cc6b2f0c40ad0a675af699a9ad49ab571.exe	106
PID 2692 wrote to memory of 2352	2692	cf9a5b156802037cb9c5638b04403d1cc6b2f0c40ad0a675af699a9ad49ab571.exe	106
PID 2352 wrote to memory of 2940	2352	cmd.exe	109
PID 2352 wrote to memory of 2940	2352	cmd.exe	109
PID 2352 wrote to memory of 2940	2352	cmd.exe	109

C:\Users\Admin\AppData\Local\Temp\cf9a5b156802037cb9c5638b04403d1cc6b2f0c40ad0a675af699a9ad49ab571.exe
"C:\Users\Admin\AppData\Local\Temp\cf9a5b156802037cb9c5638b04403d1cc6b2f0c40ad0a675af699a9ad49ab571.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 480
  2⤵
  - Program crash
  PID:4612
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 484
  2⤵
  - Program crash
  PID:4892
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 784
  2⤵
  - Program crash
  PID:1380
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 784
  2⤵
  - Program crash
  PID:3320
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 784
  2⤵
  - Program crash
  PID:4616
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 816
  2⤵
  - Program crash
  PID:4848
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 956
  2⤵
  - Program crash
  PID:2316
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 1068
  2⤵
  - Program crash
  PID:3440
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 1452
  2⤵
  - Program crash
  PID:3872
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "cf9a5b156802037cb9c5638b04403d1cc6b2f0c40ad0a675af699a9ad49ab571.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\cf9a5b156802037cb9c5638b04403d1cc6b2f0c40ad0a675af699a9ad49ab571.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2352
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "cf9a5b156802037cb9c5638b04403d1cc6b2f0c40ad0a675af699a9ad49ab571.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2940
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 1420
  2⤵
  - Program crash
  PID:3368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2692 -ip 2692
1⤵
PID:2304

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2692 -ip 2692
1⤵
PID:2972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2692 -ip 2692
1⤵
PID:4248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2692 -ip 2692
1⤵
PID:3504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2692 -ip 2692
1⤵
PID:2200

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2692 -ip 2692
1⤵
PID:3848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2692 -ip 2692
1⤵
PID:2744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2692 -ip 2692
1⤵
PID:4068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2692 -ip 2692
1⤵
PID:1044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2692 -ip 2692
1⤵
PID:1676

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2692-1-0x0000000002AC0000-0x0000000002BC0000-memory.dmp

Download

memory/2692-2-0x00000000046B0000-0x00000000046EC000-memory.dmp

Download

memory/2692-3-0x0000000000400000-0x0000000000440000-memory.dmp

Download

memory/2692-7-0x0000000000400000-0x0000000000440000-memory.dmp

Download

memory/2692-6-0x00000000046B0000-0x00000000046EC000-memory.dmp

Download

memory/2692-5-0x0000000000400000-0x000000000282D000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads