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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe

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
3372	2544	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
1648	2544	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
1280	2544	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
3328	2544	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
652	2544	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
2672	2544	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
2308	2544	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
1864	2544	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
3800	2544	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
3252	2544	WerFault.exe	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4556 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4556 taskkill.exe

pid	process
4556	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4556	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.execmd.exe

description	pid	process	target process
PID 2544 wrote to memory of 4296	2544	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe	cmd.exe
PID 2544 wrote to memory of 4296	2544	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe	cmd.exe
PID 2544 wrote to memory of 4296	2544	4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe	cmd.exe
PID 4296 wrote to memory of 4556	4296	cmd.exe	taskkill.exe
PID 4296 wrote to memory of 4556	4296	cmd.exe	taskkill.exe
PID 4296 wrote to memory of 4556	4296	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe
"C:\Users\Admin\AppData\Local\Temp\4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 452
2⤵
- Program crash
PID:3372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 764
2⤵
- Program crash
PID:1648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 800
2⤵
- Program crash
PID:1280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 792
2⤵
- Program crash
PID:3328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 860
2⤵
- Program crash
PID:652

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 928
2⤵
- Program crash
PID:2672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 1004
2⤵
- Program crash
PID:2308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 1052
2⤵
- Program crash
PID:1864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 1368
2⤵
- Program crash
PID:3800

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:4296

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "4b6c4c17e2a9200eb820f2bd7aa0b30d420299b0aa1599ae935e7409a0124774.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 492
2⤵
- Program crash
PID:3252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2544 -ip 2544
1⤵
PID:5056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2544 -ip 2544
1⤵
PID:4036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2544 -ip 2544
1⤵
PID:3384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2544 -ip 2544
1⤵
PID:4228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2544 -ip 2544
1⤵
PID:4468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2544 -ip 2544
1⤵
PID:1128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2544 -ip 2544
1⤵
PID:5088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2544 -ip 2544
1⤵
PID:2760

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2544 -ip 2544
1⤵
PID:4856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2544 -ip 2544
1⤵
PID:5084

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2544-2-0x00000000025C0000-0x00000000025FC000-memory.dmp

Filesize
240KB

Download
memory/2544-1-0x0000000002670000-0x0000000002770000-memory.dmp

Filesize
1024KB

Download
memory/2544-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2544-8-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2544-7-0x00000000025C0000-0x00000000025FC000-memory.dmp

Filesize
240KB

Download
memory/2544-6-0x0000000000400000-0x0000000002360000-memory.dmp

Filesize
31.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads