gcleaner | 579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855

General

Target

579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe
Size

292KB
MD5

833015bd47fd3060d76975e158938b89
SHA1

9ca3f4dbb53be92a039504de28b57e990214ccf6
SHA256

579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855
SHA512

f496d119a6b12adfd9432a1de89b95ce7c1a356b3a730967259d626e0a435b16cf5eb695a71d07818d15b165e2d562e6beddc1f2a6a286a7ff4bba738f0db8f2
SSDEEP

6144:bvsuT8+2J/VBz7FpAhfMzdJwkyfMUNIAWmjTFT:bvsW8+2TB3FUfMZly00jN1

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
4720	3716	WerFault.exe	579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe
1532	3716	WerFault.exe	579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe
4624	3716	WerFault.exe	579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe
4068	3716	WerFault.exe	579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe
3188	3716	WerFault.exe	579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe
4376	3716	WerFault.exe	579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe
3672	3716	WerFault.exe	579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe
3460	3716	WerFault.exe	579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe
4008	3716	WerFault.exe	579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe
2628	3716	WerFault.exe	579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4544 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4544 taskkill.exe

pid	process
4544	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4544	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.execmd.exe

description	pid	process	target process
PID 3716 wrote to memory of 2800	3716	579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe	cmd.exe
PID 3716 wrote to memory of 2800	3716	579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe	cmd.exe
PID 3716 wrote to memory of 2800	3716	579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe	cmd.exe
PID 2800 wrote to memory of 4544	2800	cmd.exe	taskkill.exe
PID 2800 wrote to memory of 4544	2800	cmd.exe	taskkill.exe
PID 2800 wrote to memory of 4544	2800	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe
"C:\Users\Admin\AppData\Local\Temp\579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 476
2⤵
- Program crash
PID:4720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 520
2⤵
- Program crash
PID:1532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 780
2⤵
- Program crash
PID:4624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 820
2⤵
- Program crash
PID:4068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 844
2⤵
- Program crash
PID:3188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 816
2⤵
- Program crash
PID:4376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 960
2⤵
- Program crash
PID:3672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 964
2⤵
- Program crash
PID:3460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 1444
2⤵
- Program crash
PID:4008

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:2800

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "579fa51e50f384f37687b0d4a6b456f33b7e5bdc4170f026db691e3adb8d8855.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 1460
2⤵
- Program crash
PID:2628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3716 -ip 3716
1⤵
PID:1624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3716 -ip 3716
1⤵
PID:1744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3716 -ip 3716
1⤵
PID:4060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3716 -ip 3716
1⤵
PID:1684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 3716 -ip 3716
1⤵
PID:2748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3716 -ip 3716
1⤵
PID:3028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3716 -ip 3716
1⤵
PID:1404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3716 -ip 3716
1⤵
PID:968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3716 -ip 3716
1⤵
PID:3896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3716 -ip 3716
1⤵
PID:4532

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/3716-2-0x00000000049D0000-0x0000000004A0C000-memory.dmp

Filesize
240KB

Download
memory/3716-1-0x0000000002F30000-0x0000000003030000-memory.dmp

Filesize
1024KB

Download
memory/3716-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3716-8-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3716-7-0x00000000049D0000-0x0000000004A0C000-memory.dmp

Filesize
240KB

Download
memory/3716-6-0x0000000000400000-0x0000000002CA8000-memory.dmp

Filesize
40.7MB

Download

Analysis

Sharing