gcleaner | ebf175f3cb1e37fe3740e183a34d7ea3dc4bf834fbd19115e6db1a7bf6e404d9

General

Target

ebf175f3cb1e37fe3740e183a34d7ea3dc4bf834fbd19115e6db1a7bf6e404d9.exe
Size

388KB
MD5

6c41fca21045431e33fca1d5107beae6
SHA1

6e20891c5fbe1148f8d85e2b6ea2be31dee36bf5
SHA256

ebf175f3cb1e37fe3740e183a34d7ea3dc4bf834fbd19115e6db1a7bf6e404d9
SHA512

794258cbafddafc04be75be6d304ef2ae9dd56b70761d2b96fddf0550a2d0dccde3243d5c8db4448ec40ef46a89761fd2c72c3e7f97c606665173513ad29083c
SSDEEP

6144:djr9eltSqItUozTxEIknA6nqA6raILBSNWG6RXndF:1r9eltDITK4AR2S4ln

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 8 IoCs

pid	pid_target	Process	procid_target
1780	2428	WerFault.exe	77
4284	2428	WerFault.exe	77
3508	2428	WerFault.exe	77
3516	2428	WerFault.exe	77
3068	2428	WerFault.exe	77
3972	2428	WerFault.exe	77
2080	2428	WerFault.exe	77
2980	2428	WerFault.exe	77

Kills process with taskkill 1 IoCs

evasion

pid	Process
5008	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5008	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2428 wrote to memory of 2144	2428	ebf175f3cb1e37fe3740e183a34d7ea3dc4bf834fbd19115e6db1a7bf6e404d9.exe	95
PID 2428 wrote to memory of 2144	2428	ebf175f3cb1e37fe3740e183a34d7ea3dc4bf834fbd19115e6db1a7bf6e404d9.exe	95
PID 2428 wrote to memory of 2144	2428	ebf175f3cb1e37fe3740e183a34d7ea3dc4bf834fbd19115e6db1a7bf6e404d9.exe	95
PID 2144 wrote to memory of 5008	2144	cmd.exe	97
PID 2144 wrote to memory of 5008	2144	cmd.exe	97
PID 2144 wrote to memory of 5008	2144	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\ebf175f3cb1e37fe3740e183a34d7ea3dc4bf834fbd19115e6db1a7bf6e404d9.exe
"C:\Users\Admin\AppData\Local\Temp\ebf175f3cb1e37fe3740e183a34d7ea3dc4bf834fbd19115e6db1a7bf6e404d9.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2428
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2428 -s 476
  2⤵
  - Program crash
  PID:1780
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2428 -s 796
  2⤵
  - Program crash
  PID:4284
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2428 -s 816
  2⤵
  - Program crash
  PID:3508
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2428 -s 856
  2⤵
  - Program crash
  PID:3516
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2428 -s 816
  2⤵
  - Program crash
  PID:3068
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2428 -s 796
  2⤵
  - Program crash
  PID:3972
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2428 -s 1008
  2⤵
  - Program crash
  PID:2080
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2428 -s 1656
  2⤵
  - Program crash
  PID:2980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "ebf175f3cb1e37fe3740e183a34d7ea3dc4bf834fbd19115e6db1a7bf6e404d9.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\ebf175f3cb1e37fe3740e183a34d7ea3dc4bf834fbd19115e6db1a7bf6e404d9.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2144
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "ebf175f3cb1e37fe3740e183a34d7ea3dc4bf834fbd19115e6db1a7bf6e404d9.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:5008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2428 -ip 2428
1⤵
PID:1684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2428 -ip 2428
1⤵
PID:1108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2428 -ip 2428
1⤵
PID:2372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2428 -ip 2428
1⤵
PID:424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 2428 -ip 2428
1⤵
PID:2084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 2428 -ip 2428
1⤵
PID:3968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2428 -ip 2428
1⤵
PID:4864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2428 -ip 2428
1⤵
PID:3320

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\Q0WXOB7C\advdlc[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2428-1-0x0000000002B50000-0x0000000002C50000-memory.dmp

Filesize
1024KB

Download
memory/2428-2-0x00000000044F0000-0x000000000452C000-memory.dmp

Filesize
240KB

Download
memory/2428-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2428-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2428-15-0x0000000000400000-0x00000000028EF000-memory.dmp

Filesize
36.9MB

Download
memory/2428-19-0x0000000002B50000-0x0000000002C50000-memory.dmp

Filesize
1024KB

Download
memory/2428-23-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2428-34-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2428-33-0x0000000000400000-0x00000000028EF000-memory.dmp

Filesize
36.9MB

Download

Analysis

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