gcleaner | 33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c

General

Target

33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe
Size

270KB
MD5

0d7bc4f75ec2bf635a8b0ce7f3b4e009
SHA1

b40e2d30a51a267374cdb2dc9dcc8a962ee5b9c4
SHA256

33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c
SHA512

59b1b16baef14b08be2811040e62a6b706edebcee188576fe9df9c65e9bd5e98a78eaf0a8d6aef887ed0682a07ebfdb92980dc07993c527b3fbd9c95e441442d
SSDEEP

6144:ToqoKiWrGhDQf8VtT5c0/w5qcGCnyzJneVNGbBCZI:TNhiWr2DHVtT5hY36JeVuBH

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
1840	3704	WerFault.exe	33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe
2492	3704	WerFault.exe	33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe
4968	3704	WerFault.exe	33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe
2404	3704	WerFault.exe	33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe
3932	3704	WerFault.exe	33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe
2540	3704	WerFault.exe	33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe
1464	3704	WerFault.exe	33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe
4696	3704	WerFault.exe	33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe
2988	3704	WerFault.exe	33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe
3920	3704	WerFault.exe	33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4300 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4300 taskkill.exe

pid	process
4300	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4300	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.execmd.exe

description	pid	process	target process
PID 3704 wrote to memory of 2896	3704	33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe	cmd.exe
PID 3704 wrote to memory of 2896	3704	33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe	cmd.exe
PID 3704 wrote to memory of 2896	3704	33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe	cmd.exe
PID 2896 wrote to memory of 4300	2896	cmd.exe	taskkill.exe
PID 2896 wrote to memory of 4300	2896	cmd.exe	taskkill.exe
PID 2896 wrote to memory of 4300	2896	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe
"C:\Users\Admin\AppData\Local\Temp\33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3704 -s 484
2⤵
- Program crash
PID:1840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3704 -s 500
2⤵
- Program crash
PID:2492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3704 -s 780
2⤵
- Program crash
PID:4968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3704 -s 780
2⤵
- Program crash
PID:2404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3704 -s 780
2⤵
- Program crash
PID:3932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3704 -s 872
2⤵
- Program crash
PID:2540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3704 -s 984
2⤵
- Program crash
PID:1464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3704 -s 1068
2⤵
- Program crash
PID:4696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3704 -s 1456
2⤵
- Program crash
PID:2988

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:2896

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "33cfc7424055a4bdb59e403f9cd5f00f86766a1f385f8d44b405fcbae75da48c.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3704 -s 1448
2⤵
- Program crash
PID:3920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3704 -ip 3704
1⤵
PID:2024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3704 -ip 3704
1⤵
PID:4688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3704 -ip 3704
1⤵
PID:5104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3704 -ip 3704
1⤵
PID:4856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3704 -ip 3704
1⤵
PID:3380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3704 -ip 3704
1⤵
PID:4748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3704 -ip 3704
1⤵
PID:1656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3704 -ip 3704
1⤵
PID:4044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3704 -ip 3704
1⤵
PID:404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3704 -ip 3704
1⤵
PID:4632

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/3704-1-0x0000000002EA0000-0x0000000002FA0000-memory.dmp

Filesize
1024KB

Download
memory/3704-2-0x00000000049C0000-0x00000000049FC000-memory.dmp

Filesize
240KB

Download
memory/3704-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3704-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3704-6-0x0000000000400000-0x0000000002CA2000-memory.dmp

Filesize
40.6MB

Download

Analysis

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