gcleaner | d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273

General

Target

d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe
Size

283KB
MD5

1c77ac518b998b4649c9db9115819bf5
SHA1

fcb2b5998bbf741a76df612be91da2959b14f4cd
SHA256

d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273
SHA512

6cfc6447084fbd9b6877eb3e90f68664a4268dcde6eb68251e7174ea5ad5301f30b7b504d12936f4b818ba334494a901506c4fb7245ec3abadbcfc84eea3a079
SSDEEP

6144:j2O8YDWkNz7jMq7OjoUCMCw6SmWKIeeo61LbPeT3Y:j2OVDWmzUq7OqmFKIIq

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

Processes:

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

pid	pid_target	process	target process
3344	2400	WerFault.exe	d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe
4016	2400	WerFault.exe	d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe
4700	2400	WerFault.exe	d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe
1852	2400	WerFault.exe	d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe
3952	2400	WerFault.exe	d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe
2064	2400	WerFault.exe	d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe
2540	2400	WerFault.exe	d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe
3992	2400	WerFault.exe	d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe
688	2400	WerFault.exe	d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe
5016	2400	WerFault.exe	d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3440 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3440 taskkill.exe

pid	process
3440	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3440	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.execmd.exe

description	pid	process	target process
PID 2400 wrote to memory of 2944	2400	d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe	cmd.exe
PID 2400 wrote to memory of 2944	2400	d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe	cmd.exe
PID 2400 wrote to memory of 2944	2400	d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe	cmd.exe
PID 2944 wrote to memory of 3440	2944	cmd.exe	taskkill.exe
PID 2944 wrote to memory of 3440	2944	cmd.exe	taskkill.exe
PID 2944 wrote to memory of 3440	2944	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe
"C:\Users\Admin\AppData\Local\Temp\d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 476
2⤵
- Program crash
PID:3344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 532
2⤵
- Program crash
PID:4016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 780
2⤵
- Program crash
PID:4700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 820
2⤵
- Program crash
PID:1852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 840
2⤵
- Program crash
PID:3952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 804
2⤵
- Program crash
PID:2064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 984
2⤵
- Program crash
PID:2540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 1068
2⤵
- Program crash
PID:3992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 1452
2⤵
- Program crash
PID:688

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:2944

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "d9caf6972a0f22528686354f7e994b3853f86661c11c2b804733b967ccca4273.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 1544
2⤵
- Program crash
PID:5016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2400 -ip 2400
1⤵
PID:2864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2400 -ip 2400
1⤵
PID:3472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 2400 -ip 2400
1⤵
PID:4824

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2400 -ip 2400
1⤵
PID:2904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2400 -ip 2400
1⤵
PID:2428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 2400 -ip 2400
1⤵
PID:4044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2400 -ip 2400
1⤵
PID:2900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2400 -ip 2400
1⤵
PID:4964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2400 -ip 2400
1⤵
PID:2784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2400 -ip 2400
1⤵
PID:1136

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2400-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/2400-2-0x00000000020A0000-0x00000000020DC000-memory.dmp

Filesize
240KB

Download
memory/2400-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2400-6-0x0000000000400000-0x0000000000491000-memory.dmp

Filesize
580KB

Download
memory/2400-7-0x00000000020A0000-0x00000000020DC000-memory.dmp

Filesize
240KB

Download
memory/2400-8-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing