gcleaner | b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd

General

Target

b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe
Size

292KB
MD5

583d46cf0de48deb8edbebb0f8ca9f2c
SHA1

805772046eb1bdfb6de597d54ae7c1a87d727b8e
SHA256

b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd
SHA512

c2432c73196030af0332c09c688e23da9664dbcf788f17a2defd08bd731591ce2adfb1f1c652b87a003be77ee951851ecd9a8d660b8c1adc905eb4f999089e05
SSDEEP

6144:zKUFfHXsi/uG6/yAAkZVNsGhtLew2DD6JYiNYzcT:zKOPcip6/yAJVO0r2DDUH

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
4340	904	WerFault.exe	b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe
3792	904	WerFault.exe	b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe
2272	904	WerFault.exe	b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe
2964	904	WerFault.exe	b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe
1804	904	WerFault.exe	b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe
1576	904	WerFault.exe	b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe
2092	904	WerFault.exe	b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe
3992	904	WerFault.exe	b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe
1552	904	WerFault.exe	b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe
5108	904	WerFault.exe	b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4496 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4496 taskkill.exe

pid	process
4496	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4496	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.execmd.exe

description	pid	process	target process
PID 904 wrote to memory of 2148	904	b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe	cmd.exe
PID 904 wrote to memory of 2148	904	b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe	cmd.exe
PID 904 wrote to memory of 2148	904	b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe	cmd.exe
PID 2148 wrote to memory of 4496	2148	cmd.exe	taskkill.exe
PID 2148 wrote to memory of 4496	2148	cmd.exe	taskkill.exe
PID 2148 wrote to memory of 4496	2148	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe
"C:\Users\Admin\AppData\Local\Temp\b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 904 -s 484
2⤵
- Program crash
PID:4340

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 904 -s 532
2⤵
- Program crash
PID:3792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 904 -s 788
2⤵
- Program crash
PID:2272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 904 -s 828
2⤵
- Program crash
PID:2964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 904 -s 828
2⤵
- Program crash
PID:1804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 904 -s 880
2⤵
- Program crash
PID:1576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 904 -s 984
2⤵
- Program crash
PID:2092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 904 -s 992
2⤵
- Program crash
PID:3992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 904 -s 1444
2⤵
- Program crash
PID:1552

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:2148

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "b136aa92ce09fd40d8df8e1482b60653f1aa181b82c613bbab68785d6d7de7dd.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 904 -s 1516
2⤵
- Program crash
PID:5108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 904 -ip 904
1⤵
PID:4140

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 904 -ip 904
1⤵
PID:3672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 904 -ip 904
1⤵
PID:3452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 904 -ip 904
1⤵
PID:3036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 904 -ip 904
1⤵
PID:4456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 192 -p 904 -ip 904
1⤵
PID:1848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 904 -ip 904
1⤵
PID:1056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 904 -ip 904
1⤵
PID:2592

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 904 -ip 904
1⤵
PID:5036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 904 -ip 904
1⤵
PID:2392

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

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Downloads

memory/904-1-0x0000000002E80000-0x0000000002F80000-memory.dmp

Filesize
1024KB

Download
memory/904-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/904-2-0x00000000049B0000-0x00000000049EC000-memory.dmp

Filesize
240KB

Download
memory/904-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/904-6-0x0000000000400000-0x0000000002CA8000-memory.dmp

Filesize
40.7MB

Download

Analysis

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