gcleaner | 589f9841822ba66abe4cf94fc3f104307d13014de6d3ed4bc507873fe0653e2e

Analysis

max time kernel
125s
max time network
258s
platform
windows10-1703_x64
resource
win10-20230703-en
resource tags

arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system
submitted
07/07/2023, 03:38

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General

Target

589f9841822ba66abe4cf94fc3f104307d13014de6d3ed4bc507873fe0653e2e.exe
Size

304KB
MD5

b59c8093621b9d5b5ad1905fab5aee00
SHA1

e36627f6faaee192a2ab8f4d6e7ccad03409e306
SHA256

589f9841822ba66abe4cf94fc3f104307d13014de6d3ed4bc507873fe0653e2e
SHA512

8e6ded0e24a587bd10c91ca62dd52e0f0418207484a32c407ce625c6e3af7d0963dc728caeec153c79a94e6be07d4bd4edd8c3bb4e4e6ed20fab5d4a84e8bc72
SSDEEP

6144:i083LPjsNIaUNNsEdX/k5+qgRxx4xwdmJLaTZoA:N837js+bjX4SD4i0KKA

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

45.12.253.56

45.12.253.72

45.12.253.98

45.12.253.75

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 9 IoCs

pid	pid_target	Process	procid_target
4836	3532	WerFault.exe	69
4268	3532	WerFault.exe	69
828	3532	WerFault.exe	69
4116	3532	WerFault.exe	69
432	3532	WerFault.exe	69
724	3532	WerFault.exe	69
4756	3532	WerFault.exe	69
2272	3532	WerFault.exe	69
4720	3532	WerFault.exe	69

Kills process with taskkill 1 IoCs

evasion

pid	Process
3444	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3444	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3532 wrote to memory of 3576	3532	589f9841822ba66abe4cf94fc3f104307d13014de6d3ed4bc507873fe0653e2e.exe	80
PID 3532 wrote to memory of 3576	3532	589f9841822ba66abe4cf94fc3f104307d13014de6d3ed4bc507873fe0653e2e.exe	80
PID 3532 wrote to memory of 3576	3532	589f9841822ba66abe4cf94fc3f104307d13014de6d3ed4bc507873fe0653e2e.exe	80
PID 3576 wrote to memory of 3444	3576	cmd.exe	82
PID 3576 wrote to memory of 3444	3576	cmd.exe	82
PID 3576 wrote to memory of 3444	3576	cmd.exe	82

C:\Users\Admin\AppData\Local\Temp\589f9841822ba66abe4cf94fc3f104307d13014de6d3ed4bc507873fe0653e2e.exe
"C:\Users\Admin\AppData\Local\Temp\589f9841822ba66abe4cf94fc3f104307d13014de6d3ed4bc507873fe0653e2e.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3532 -s 524
  2⤵
  - Program crash
  PID:4836
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3532 -s 776
  2⤵
  - Program crash
  PID:4268
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3532 -s 804
  2⤵
  - Program crash
  PID:828
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3532 -s 872
  2⤵
  - Program crash
  PID:4116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3532 -s 1000
  2⤵
  - Program crash
  PID:432
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3532 -s 968
  2⤵
  - Program crash
  PID:724
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3532 -s 1144
  2⤵
  - Program crash
  PID:4756
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3532 -s 1156
  2⤵
  - Program crash
  PID:2272
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3532 -s 1324
  2⤵
  - Program crash
  PID:4720
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "589f9841822ba66abe4cf94fc3f104307d13014de6d3ed4bc507873fe0653e2e.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\589f9841822ba66abe4cf94fc3f104307d13014de6d3ed4bc507873fe0653e2e.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3576
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "589f9841822ba66abe4cf94fc3f104307d13014de6d3ed4bc507873fe0653e2e.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3444

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3532-123-0x0000000002060000-0x00000000020A0000-memory.dmp

Filesize
256KB

Download
memory/3532-125-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download