gcleaner | 4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774

General

Target

4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
Size

268KB
MD5

d4b5defd49386b58a8eafe6560dc94d5
SHA1

c9492d819ce38cc74489b40cfd2fd4cd97a0b747
SHA256

4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774
SHA512

7d8c8564524c278bf32c960080d40fa491ca0dddaecb06e1831c4723a4a84564b9f1165d2f5d03cc22e7a246c0b1559403c1f3b673998a7b3beebebdd38bc0a0
SSDEEP

3072:sn0oqvhLPtBUM952fX+D4BXVK48IA1xWJy95KbWUEc5RFcu2v:s0oEFBUw5Gc4BXYTQG0SU3F

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 9 IoCs

Processes:

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

pid	pid_target	process	target process
4520	1468	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
1928	1468	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
2880	1468	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
5052	1468	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
4820	1468	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
1520	1468	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
4908	1468	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
2416	1468	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
1264	1468	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4420 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4420 taskkill.exe

pid	process
4420	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4420	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.execmd.exe

description	pid	process	target process
PID 1468 wrote to memory of 748	1468	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe	cmd.exe
PID 1468 wrote to memory of 748	1468	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe	cmd.exe
PID 1468 wrote to memory of 748	1468	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe	cmd.exe
PID 748 wrote to memory of 4420	748	cmd.exe	taskkill.exe
PID 748 wrote to memory of 4420	748	cmd.exe	taskkill.exe
PID 748 wrote to memory of 4420	748	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
"C:\Users\Admin\AppData\Local\Temp\4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1468 -s 476
2⤵
- Program crash
PID:4520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1468 -s 796
2⤵
- Program crash
PID:1928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1468 -s 816
2⤵
- Program crash
PID:2880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1468 -s 856
2⤵
- Program crash
PID:5052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1468 -s 900
2⤵
- Program crash
PID:4820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1468 -s 1000
2⤵
- Program crash
PID:1520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1468 -s 1104
2⤵
- Program crash
PID:4908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1468 -s 1448
2⤵
- Program crash
PID:2416

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:748

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1468 -s 544
2⤵
- Program crash
PID:1264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1468 -ip 1468
1⤵
PID:3132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1468 -ip 1468
1⤵
PID:3512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 1468 -ip 1468
1⤵
PID:4044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1468 -ip 1468
1⤵
PID:4756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 1468 -ip 1468
1⤵
PID:4600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1468 -ip 1468
1⤵
PID:1456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1468 -ip 1468
1⤵
PID:2096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1468 -ip 1468
1⤵
PID:4620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1468 -ip 1468
1⤵
PID:4316

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/1468-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1468-2-0x00000000025D0000-0x000000000260C000-memory.dmp

Filesize
240KB

Download
memory/1468-1-0x0000000002630000-0x0000000002730000-memory.dmp

Filesize
1024KB

Download
memory/1468-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1468-6-0x0000000000400000-0x0000000002360000-memory.dmp

Filesize
31.4MB

Download

Analysis

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