gcleaner | 41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea

General

Target

41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe
Size

313KB
MD5

156ba1683fd49e67a52afcbef2a154ed
SHA1

3b416c5a550136532393f946a51dae46fb9cfd50
SHA256

41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea
SHA512

3b7ecc019f0fe652e4c97ac55385b73506288f693c237fa350ce427bd5edd18591f3a47d963ecf7e5de4fea02efe1822d9c0a6efd3ce9edbde4803a30d24058c
SSDEEP

6144:qU1/w/Po9Tc+7D29GuR0vUMhLqRg9XfE/:5w/Pov2ES0MYO

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
Downloads MZ/PE file
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 11 IoCs

Processes:

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

pid	pid_target	process	target process
4640	1104	WerFault.exe	41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe
1864	1104	WerFault.exe	41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe
4024	1104	WerFault.exe	41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe
2756	1104	WerFault.exe	41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe
4456	1104	WerFault.exe	41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe
5044	1104	WerFault.exe	41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe
2860	1104	WerFault.exe	41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe
764	1104	WerFault.exe	41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe
2532	1104	WerFault.exe	41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe
2488	1104	WerFault.exe	41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe
996	1104	WerFault.exe	41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

880 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 880 taskkill.exe

pid	process
880	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	880	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.execmd.exe

description	pid	process	target process
PID 1104 wrote to memory of 3260	1104	41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe	cmd.exe
PID 1104 wrote to memory of 3260	1104	41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe	cmd.exe
PID 1104 wrote to memory of 3260	1104	41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe	cmd.exe
PID 3260 wrote to memory of 880	3260	cmd.exe	taskkill.exe
PID 3260 wrote to memory of 880	3260	cmd.exe	taskkill.exe
PID 3260 wrote to memory of 880	3260	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe
"C:\Users\Admin\AppData\Local\Temp\41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1104
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 476
  2⤵
  - Program crash
  PID:4640
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 480
  2⤵
  - Program crash
  PID:1864
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 780
  2⤵
  - Program crash
  PID:4024
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 800
  2⤵
  - Program crash
  PID:2756
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 832
  2⤵
  - Program crash
  PID:4456
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 780
  2⤵
  - Program crash
  PID:5044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 984
  2⤵
  - Program crash
  PID:2860
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 1028
  2⤵
  - Program crash
  PID:764
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 1344
  2⤵
  - Program crash
  PID:2532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 1780
  2⤵
  - Program crash
  PID:2488
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3260
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "41520590fd911f3c057bfc6c55409e83963f4469a679afc14a750897c35a47ea.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:880
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 1388
  2⤵
  - Program crash
  PID:996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1104 -ip 1104
1⤵
PID:5004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1104 -ip 1104
1⤵
PID:4864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1104 -ip 1104
1⤵
PID:780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1104 -ip 1104
1⤵
PID:4036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1104 -ip 1104
1⤵
PID:4816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1104 -ip 1104
1⤵
PID:4528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1104 -ip 1104
1⤵
PID:2992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1104 -ip 1104
1⤵
PID:3304

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1104 -ip 1104
1⤵
PID:4704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1104 -ip 1104
1⤵
PID:2808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 1104 -ip 1104
1⤵
PID:1332

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

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\QVZ2Q952\advdlc[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1104-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/1104-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1104-2-0x0000000002180000-0x00000000021BC000-memory.dmp

Filesize
240KB

Download
memory/1104-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1104-14-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1104-19-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/1104-24-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1104-34-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1104-33-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download

Analysis

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