gcleaner | 4093361e03302ff22323fc92342c3d2bf09e5bc27e20446bae0c91e71c8927ca

General

Target

4093361e03302ff22323fc92342c3d2bf09e5bc27e20446bae0c91e71c8927ca.exe
Size

339KB
MD5

38f987db00f35467f4c1ba099c4159a4
SHA1

bfc51cda4fa3569132a8473e5e75529f7fa23ef4
SHA256

4093361e03302ff22323fc92342c3d2bf09e5bc27e20446bae0c91e71c8927ca
SHA512

eb9f4656fc050732899050fde9c2d9a310108e1ef8652048d8630365d433d29efcef1e13ab2b1c9a417d99c62fedaa8ac9dfbe97a1266f8183a7a864a289e646
SSDEEP

6144:572NCQiFB8OE8Vbs4V2k/IhWGnKi0XSSZh3zDeT9Fb4T:56NC95VVbs4AWIhXKi0XSezDeTU

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 10 IoCs

pid	pid_target	Process	procid_target
3316	2016	WerFault.exe	77
3500	2016	WerFault.exe	77
1772	2016	WerFault.exe	77
3076	2016	WerFault.exe	77
804	2016	WerFault.exe	77
4708	2016	WerFault.exe	77
3184	2016	WerFault.exe	77
4816	2016	WerFault.exe	77
2080	2016	WerFault.exe	77
788	2016	WerFault.exe	77

Kills process with taskkill 1 IoCs

evasion

pid	Process
5004	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5004	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 2152	2016	4093361e03302ff22323fc92342c3d2bf09e5bc27e20446bae0c91e71c8927ca.exe	97
PID 2016 wrote to memory of 2152	2016	4093361e03302ff22323fc92342c3d2bf09e5bc27e20446bae0c91e71c8927ca.exe	97
PID 2016 wrote to memory of 2152	2016	4093361e03302ff22323fc92342c3d2bf09e5bc27e20446bae0c91e71c8927ca.exe	97
PID 2152 wrote to memory of 5004	2152	cmd.exe	100
PID 2152 wrote to memory of 5004	2152	cmd.exe	100
PID 2152 wrote to memory of 5004	2152	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\4093361e03302ff22323fc92342c3d2bf09e5bc27e20446bae0c91e71c8927ca.exe
"C:\Users\Admin\AppData\Local\Temp\4093361e03302ff22323fc92342c3d2bf09e5bc27e20446bae0c91e71c8927ca.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 480
  2⤵
  - Program crash
  PID:3316
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 532
  2⤵
  - Program crash
  PID:3500
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 780
  2⤵
  - Program crash
  PID:1772
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 800
  2⤵
  - Program crash
  PID:3076
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 832
  2⤵
  - Program crash
  PID:804
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 872
  2⤵
  - Program crash
  PID:4708
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 984
  2⤵
  - Program crash
  PID:3184
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 1088
  2⤵
  - Program crash
  PID:4816
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 1640
  2⤵
  - Program crash
  PID:2080
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "4093361e03302ff22323fc92342c3d2bf09e5bc27e20446bae0c91e71c8927ca.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\4093361e03302ff22323fc92342c3d2bf09e5bc27e20446bae0c91e71c8927ca.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2152
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "4093361e03302ff22323fc92342c3d2bf09e5bc27e20446bae0c91e71c8927ca.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:5004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 1664
  2⤵
  - Program crash
  PID:788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2016 -ip 2016
1⤵
PID:5112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 2016 -ip 2016
1⤵
PID:4396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 2016 -ip 2016
1⤵
PID:3040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2016 -ip 2016
1⤵
PID:1928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 2016 -ip 2016
1⤵
PID:4696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2016 -ip 2016
1⤵
PID:3812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 2016 -ip 2016
1⤵
PID:2212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 2016 -ip 2016
1⤵
PID:3804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2016 -ip 2016
1⤵
PID:1832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2016 -ip 2016
1⤵
PID:3672

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\D1O30EO5\advdlc[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2016-2-0x00000000023D0000-0x000000000240C000-memory.dmp

Filesize
240KB

Download
memory/2016-1-0x00000000008D0000-0x00000000009D0000-memory.dmp

Filesize
1024KB

Download
memory/2016-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2016-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2016-15-0x0000000000400000-0x000000000068E000-memory.dmp

Filesize
2.6MB

Download
memory/2016-19-0x00000000008D0000-0x00000000009D0000-memory.dmp

Filesize
1024KB

Download
memory/2016-20-0x00000000023D0000-0x000000000240C000-memory.dmp

Filesize
240KB

Download
memory/2016-25-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2016-35-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2016-34-0x0000000000400000-0x000000000068E000-memory.dmp

Filesize
2.6MB

Download

Analysis

Sharing