gcleaner | 083060880ab3d6ec12f01af2f4cb948b342196de8c1ecd55e2685f80f00f6848

General

Target

083060880ab3d6ec12f01af2f4cb948b342196de8c1ecd55e2685f80f00f6848.exe
Size

382KB
MD5

df3eea8d70470189de7069fa02e73a01
SHA1

b68dd135edcb20ee915541049480898b2fa2bd3b
SHA256

083060880ab3d6ec12f01af2f4cb948b342196de8c1ecd55e2685f80f00f6848
SHA512

d6d3e8f8f90377aebe74bb180036a5d3ab5a4f62b4e91ae75fd6dec884f12df95d12a20e1dc86e7cb66ce88f8e88bfbe39410e0c43c332bd3bb0644297c38c6f
SSDEEP

6144:5IyXsmry1miiCMw4PoO4lHNY5t5w9mXiFH8v6PElqNZTb+els:5IyXsZ1mfd6lAPwDwYmCZx

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

pid	pid_target	Process	procid_target
5112	4996	WerFault.exe	75
828	4996	WerFault.exe	75
3504	4996	WerFault.exe	75
456	4996	WerFault.exe	75
2140	4996	WerFault.exe	75
1964	4996	WerFault.exe	75
3344	4996	WerFault.exe	75
864	4996	WerFault.exe	75
4876	4996	WerFault.exe	75
3516	4996	WerFault.exe	75
3744	4996	WerFault.exe	75

Kills process with taskkill 1 IoCs

evasion

pid	Process
1144	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1144	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 4596	4996	083060880ab3d6ec12f01af2f4cb948b342196de8c1ecd55e2685f80f00f6848.exe	97
PID 4996 wrote to memory of 4596	4996	083060880ab3d6ec12f01af2f4cb948b342196de8c1ecd55e2685f80f00f6848.exe	97
PID 4996 wrote to memory of 4596	4996	083060880ab3d6ec12f01af2f4cb948b342196de8c1ecd55e2685f80f00f6848.exe	97
PID 4596 wrote to memory of 1144	4596	cmd.exe	100
PID 4596 wrote to memory of 1144	4596	cmd.exe	100
PID 4596 wrote to memory of 1144	4596	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\083060880ab3d6ec12f01af2f4cb948b342196de8c1ecd55e2685f80f00f6848.exe
"C:\Users\Admin\AppData\Local\Temp\083060880ab3d6ec12f01af2f4cb948b342196de8c1ecd55e2685f80f00f6848.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4996
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 476
  2⤵
  - Program crash
  PID:5112
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 536
  2⤵
  - Program crash
  PID:828
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 780
  2⤵
  - Program crash
  PID:3504
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 820
  2⤵
  - Program crash
  PID:456
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 780
  2⤵
  - Program crash
  PID:2140
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 820
  2⤵
  - Program crash
  PID:1964
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 984
  2⤵
  - Program crash
  PID:3344
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 1068
  2⤵
  - Program crash
  PID:864
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 1084
  2⤵
  - Program crash
  PID:4876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 1616
  2⤵
  - Program crash
  PID:3516
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "083060880ab3d6ec12f01af2f4cb948b342196de8c1ecd55e2685f80f00f6848.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\083060880ab3d6ec12f01af2f4cb948b342196de8c1ecd55e2685f80f00f6848.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4596
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "083060880ab3d6ec12f01af2f4cb948b342196de8c1ecd55e2685f80f00f6848.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1144
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 1744
  2⤵
  - Program crash
  PID:3744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 352 -p 4996 -ip 4996
1⤵
PID:3436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4996 -ip 4996
1⤵
PID:3876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4996 -ip 4996
1⤵
PID:3360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4996 -ip 4996
1⤵
PID:4296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4996 -ip 4996
1⤵
PID:5088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4996 -ip 4996
1⤵
PID:1576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4996 -ip 4996
1⤵
PID:3712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4996 -ip 4996
1⤵
PID:1308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4996 -ip 4996
1⤵
PID:1644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4996 -ip 4996
1⤵
PID:1072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4996 -ip 4996
1⤵
PID:2364

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\H4P8YSYM\advdlc[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4996-1-0x0000000002FF0000-0x00000000030F0000-memory.dmp

Filesize
1024KB

Download
memory/4996-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4996-2-0x0000000002F40000-0x0000000002F7C000-memory.dmp

Filesize
240KB

Download
memory/4996-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/4996-14-0x0000000000400000-0x0000000002CBE000-memory.dmp

Filesize
40.7MB

Download
memory/4996-18-0x0000000002F40000-0x0000000002F7C000-memory.dmp

Filesize
240KB

Download
memory/4996-22-0x0000000002FF0000-0x00000000030F0000-memory.dmp

Filesize
1024KB

Download
memory/4996-24-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4996-27-0x0000000000400000-0x0000000002CBE000-memory.dmp

Filesize
40.7MB

Download
memory/4996-36-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4996-35-0x0000000000400000-0x0000000002CBE000-memory.dmp

Filesize
40.7MB

Download

Analysis

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