gcleaner | 38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3

General

Target

38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe
Size

276KB
MD5

1d8af748a0d4762f642b1f5dc1f37a6e
SHA1

e1bd1c12d1119aa3e9151d1cfcdeefc7ea47021d
SHA256

38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3
SHA512

cf83c5b0bab7fe0d91ade6c94cedf3fedec5ee17ea4780579fecb07da2842e0e4b935c15805dc47e0a216932c647eea04b9d6dd02ac39555973ca407cc25a312
SSDEEP

6144:ynHHYxvqL5XHUmb0rAUbtOZc2ZuozpPMXKMlB/1:kHYxqL1UmOButPMtlB

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
4912	3984	WerFault.exe	38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe
3964	3984	WerFault.exe	38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe
3156	3984	WerFault.exe	38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe
3120	3984	WerFault.exe	38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe
2812	3984	WerFault.exe	38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe
3936	3984	WerFault.exe	38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe
3096	3984	WerFault.exe	38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe
1440	3984	WerFault.exe	38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe
4652	3984	WerFault.exe	38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe
2504	3984	WerFault.exe	38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3648 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3648 taskkill.exe

pid	process
3648	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3648	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.execmd.exe

description	pid	process	target process
PID 3984 wrote to memory of 4464	3984	38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe	cmd.exe
PID 3984 wrote to memory of 4464	3984	38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe	cmd.exe
PID 3984 wrote to memory of 4464	3984	38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe	cmd.exe
PID 4464 wrote to memory of 3648	4464	cmd.exe	taskkill.exe
PID 4464 wrote to memory of 3648	4464	cmd.exe	taskkill.exe
PID 4464 wrote to memory of 3648	4464	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe
"C:\Users\Admin\AppData\Local\Temp\38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 480
2⤵
- Program crash
PID:4912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 532
2⤵
- Program crash
PID:3964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 780
2⤵
- Program crash
PID:3156

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 820
2⤵
- Program crash
PID:3120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 844
2⤵
- Program crash
PID:2812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 872
2⤵
- Program crash
PID:3936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 984
2⤵
- Program crash
PID:3096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 992
2⤵
- Program crash
PID:1440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 1464
2⤵
- Program crash
PID:4652

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4464

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "38def01fd86b01bd4c1b24709a8be37233961e3f04074ebcd5ed98c6948dc9a3.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 1376
2⤵
- Program crash
PID:2504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3984 -ip 3984
1⤵
PID:4248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3984 -ip 3984
1⤵
PID:3640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3984 -ip 3984
1⤵
PID:1984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3984 -ip 3984
1⤵
PID:3580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3984 -ip 3984
1⤵
PID:3208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3984 -ip 3984
1⤵
PID:4628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3984 -ip 3984
1⤵
PID:3136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3984 -ip 3984
1⤵
PID:3456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3984 -ip 3984
1⤵
PID:3084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3984 -ip 3984
1⤵
PID:984

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

Replay Monitor

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Downloads

memory/3984-2-0x00000000049E0000-0x0000000004A1C000-memory.dmp

Filesize
240KB

Download
memory/3984-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3984-1-0x0000000003000000-0x0000000003100000-memory.dmp

Filesize
1024KB

Download
memory/3984-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3984-6-0x0000000000400000-0x0000000002CA3000-memory.dmp

Filesize
40.6MB

Download

Analysis

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