gcleaner | 6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77

General

Target
6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77.exe
Size 293KB
Sample240526-a2falsha99
SHA256 6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77
MD5 14b027cc047db731cf85c0c9566efee0
SHA1 c48f20a1e2a1373e48a50cdc20afee9f605a9c9c
SHA512 dc94e3c7b02f35c8d9edaa2ababfa4f087f61f4d3fd93f239c3924610295ff55cb28913c46d90c50d5e51ed8d6ff410fb2061257dd2ab98117961a08f0981131
SSDEEP 6144:EWNrAwUuw0YiutuPn4GoaBiNcj2DAhQ7hrIyD0/xQT:ZNrA7t0YiutVNaB7+AhgpL
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90
5.42.64.56
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
2684	3440	WerFault.exe	77
2320	3440	WerFault.exe	77
2908	3440	WerFault.exe	77
2724	3440	WerFault.exe	77
4132	3440	WerFault.exe	77
4368	3440	WerFault.exe	77
2828	3440	WerFault.exe	77
4744	3440	WerFault.exe	77
4260	3440	WerFault.exe	77
4776	3440	WerFault.exe	77

Kills process with taskkill 1 IoCs

evasion

pid	Process
1452	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1452	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3440 wrote to memory of 4100	3440	6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77.exe	98
PID 3440 wrote to memory of 4100	3440	6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77.exe	98
PID 3440 wrote to memory of 4100	3440	6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77.exe	98
PID 4100 wrote to memory of 1452	4100	cmd.exe	101
PID 4100 wrote to memory of 1452	4100	cmd.exe	101
PID 4100 wrote to memory of 1452	4100	cmd.exe	101

C:\Users\Admin\AppData\Local\Temp\6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77.exe
"C:\Users\Admin\AppData\Local\Temp\6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3440
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3440 -s 480
  2⤵
  - Program crash
  PID:2684
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3440 -s 500
  2⤵
  - Program crash
  PID:2320
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3440 -s 788
  2⤵
  - Program crash
  PID:2908
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3440 -s 800
  2⤵
  - Program crash
  PID:2724
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3440 -s 832
  2⤵
  - Program crash
  PID:4132
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3440 -s 852
  2⤵
  - Program crash
  PID:4368
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3440 -s 984
  2⤵
  - Program crash
  PID:2828
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3440 -s 1068
  2⤵
  - Program crash
  PID:4744
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3440 -s 1444
  2⤵
  - Program crash
  PID:4260
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4100
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "6185dca82afc231e003000da31355b2a826a394eb6876f5fad184f6eb9c6bf77.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1452
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3440 -s 1456
  2⤵
  - Program crash
  PID:4776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3440 -ip 3440
1⤵
PID:2824

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3440 -ip 3440
1⤵
PID:3712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3440 -ip 3440
1⤵
PID:2296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3440 -ip 3440
1⤵
PID:792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3440 -ip 3440
1⤵
PID:4980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3440 -ip 3440
1⤵
PID:1200

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3440 -ip 3440
1⤵
PID:3716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3440 -ip 3440
1⤵
PID:3848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3440 -ip 3440
1⤵
PID:2652

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3440 -ip 3440
1⤵
PID:4648

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/3440-2-0x00000000049C0000-0x00000000049FC000-memory.dmp

Download

memory/3440-3-0x0000000000400000-0x0000000000440000-memory.dmp

Download

memory/3440-1-0x0000000002EA0000-0x0000000002FA0000-memory.dmp

Download

memory/3440-7-0x0000000000400000-0x0000000000440000-memory.dmp

Download

memory/3440-6-0x0000000000400000-0x0000000002CA8000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads