gcleaner | b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b

General

Target

b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b.exe
Size

255KB
MD5

27339e5285ba492cb8848efb30811d81
SHA1

d62d0edb3061889e2862e0bc28ffff887ade804c
SHA256

b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b
SHA512

3fd8db3d565af495b60bab686f7cb8388fca3333afc7c3d41c8e73fab2bb86a23907db5aaab47c7acf272a5723688f439048fed4a2c4b7ac3dc7d7fa09ff2c71
SSDEEP

3072:3lpJW4MPWXTkKcOj+nnSlu+dODF4yTUYohyRQCu+pxjt+f/wtIxAW27yPBIZ40UE:19Tk7F7T+hovjte/wtIxA6ZIZ40

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90

5.42.65.64

Attributes

url_path
/advdlc.php

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 8 IoCs

Processes:

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

pid	pid_target	process	target process
2208	4904	WerFault.exe	b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b.exe
4876	4904	WerFault.exe	b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b.exe
4424	4904	WerFault.exe	b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b.exe
1472	4904	WerFault.exe	b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b.exe
3452	4904	WerFault.exe	b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b.exe
1248	4904	WerFault.exe	b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b.exe
4920	4904	WerFault.exe	b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b.exe
2764	4904	WerFault.exe	b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1656 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1656 taskkill.exe

pid	process
1656	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1656	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b.execmd.exe

description	pid	process	target process
PID 4904 wrote to memory of 3528	4904	b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b.exe	cmd.exe
PID 4904 wrote to memory of 3528	4904	b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b.exe	cmd.exe
PID 4904 wrote to memory of 3528	4904	b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b.exe	cmd.exe
PID 3528 wrote to memory of 1656	3528	cmd.exe	taskkill.exe
PID 3528 wrote to memory of 1656	3528	cmd.exe	taskkill.exe
PID 3528 wrote to memory of 1656	3528	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b.exe
"C:\Users\Admin\AppData\Local\Temp\b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 772
2⤵
- Program crash
PID:2208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 812
2⤵
- Program crash
PID:4876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 872
2⤵
- Program crash
PID:4424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 892
2⤵
- Program crash
PID:1472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 976
2⤵
- Program crash
PID:3452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 1080
2⤵
- Program crash
PID:1248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 1428
2⤵
- Program crash
PID:4920

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:3528

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "b8220b6b3c69724d77fea12ee6f987d333d2d9f261d597ad1c1c87ff0a745a2b.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 1444
2⤵
- Program crash
PID:2764

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4904 -ip 4904
1⤵
PID:4780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4904 -ip 4904
1⤵
PID:4836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 4904 -ip 4904
1⤵
PID:412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 4904 -ip 4904
1⤵
PID:2812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4904 -ip 4904
1⤵
PID:3864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4904 -ip 4904
1⤵
PID:476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4904 -ip 4904
1⤵
PID:1012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4904 -ip 4904
1⤵
PID:4668

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/4904-2-0x0000000002190000-0x00000000021BD000-memory.dmp

Filesize
180KB

Download
memory/4904-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/4904-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4904-5-0x0000000000400000-0x0000000000489000-memory.dmp

Filesize
548KB

Download
memory/4904-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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