gcleaner | 7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99

General

Target

7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe
Size

269KB
MD5

a58ee0c97dc9c6c85542a90689d2cb11
SHA1

054586b8f63bbb02c639e3fbcae39a1c6cfb837a
SHA256

7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99
SHA512

b9266b555b649240ac3b1d51ff764c9bbeb46eca83e0739b90098f975d72b8e592d43a27f161ea350bbaa44801b96661d91ca23dde1e07bfac3bb6155c7f979a
SSDEEP

6144:JL+i29cfqr8XX5hlIGu3yA3er/ixYFZc62S:JLv290AyX5hlmfur/AWvX

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
3416	3620	WerFault.exe	7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe
4844	3620	WerFault.exe	7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe
132	3620	WerFault.exe	7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe
4784	3620	WerFault.exe	7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe
2340	3620	WerFault.exe	7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe
1480	3620	WerFault.exe	7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe
964	3620	WerFault.exe	7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe
3852	3620	WerFault.exe	7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe
2396	3620	WerFault.exe	7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe
3304	3620	WerFault.exe	7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3212 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3212 taskkill.exe

pid	process
3212	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3212	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.execmd.exe

description	pid	process	target process
PID 3620 wrote to memory of 3332	3620	7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe	cmd.exe
PID 3620 wrote to memory of 3332	3620	7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe	cmd.exe
PID 3620 wrote to memory of 3332	3620	7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe	cmd.exe
PID 3332 wrote to memory of 3212	3332	cmd.exe	taskkill.exe
PID 3332 wrote to memory of 3212	3332	cmd.exe	taskkill.exe
PID 3332 wrote to memory of 3212	3332	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe
"C:\Users\Admin\AppData\Local\Temp\7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3620 -s 476
2⤵
- Program crash
PID:3416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3620 -s 532
2⤵
- Program crash
PID:4844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3620 -s 780
2⤵
- Program crash
PID:132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3620 -s 800
2⤵
- Program crash
PID:4784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3620 -s 780
2⤵
- Program crash
PID:2340

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3620 -s 852
2⤵
- Program crash
PID:1480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3620 -s 968
2⤵
- Program crash
PID:964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3620 -s 1068
2⤵
- Program crash
PID:3852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3620 -s 1412
2⤵
- Program crash
PID:2396

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:3332

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "7b641889fc73e71d112b0b8f9e03de3384558070fe4c7f354d071ed6362ccf99.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3620 -s 1508
2⤵
- Program crash
PID:3304

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3620 -ip 3620
1⤵
PID:4700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3620 -ip 3620
1⤵
PID:4456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3620 -ip 3620
1⤵
PID:2388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3620 -ip 3620
1⤵
PID:4496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3620 -ip 3620
1⤵
PID:1888

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3620 -ip 3620
1⤵
PID:2940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3620 -ip 3620
1⤵
PID:4580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3620 -ip 3620
1⤵
PID:1312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3620 -ip 3620
1⤵
PID:1872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3620 -ip 3620
1⤵
PID:928

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/3620-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3620-2-0x0000000003010000-0x000000000304C000-memory.dmp

Filesize
240KB

Download
memory/3620-1-0x00000000030B0000-0x00000000031B0000-memory.dmp

Filesize
1024KB

Download
memory/3620-8-0x0000000003010000-0x000000000304C000-memory.dmp

Filesize
240KB

Download
memory/3620-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3620-6-0x0000000000400000-0x0000000002CA2000-memory.dmp

Filesize
40.6MB

Download

Analysis

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