gcleaner | e20d8500c29a288d9ba280531651ad74c81cfc4c77a95bc4f08cce232ff1b6aa

Analysis

max time kernel
128s
max time network
263s
platform
windows10-1703_x64
resource
win10-20230703-en
resource tags

arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system
submitted
20/07/2023, 03:40

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General

Target

e20d8500c29a288d9ba280531651ad74c81cfc4c77a95bc4f08cce232ff1b6aa.exe
Size

328KB
MD5

e2c4d15d52ad163feff9485adf5d577d
SHA1

0de8e73173ed7791250242fe1521554f38bcfd36
SHA256

e20d8500c29a288d9ba280531651ad74c81cfc4c77a95bc4f08cce232ff1b6aa
SHA512

f41b5d2a54f8daa92fe7eba64df51ee71c38b94adcb829236f4517016b90845e23af74e4dedfc6ee3d986e56542afb5f20e5974eeef30d81f9a5f6e60a8758e4
SSDEEP

6144:GZy8qgW5ixeelIUsI4lmCfm7fpdWNgwOE/Caf:AfqgWEDlIUaIg6d0bO7W

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
4536	428	WerFault.exe	68
2152	428	WerFault.exe	68
360	428	WerFault.exe	68
4860	428	WerFault.exe	68
500	428	WerFault.exe	68
1540	428	WerFault.exe	68
4896	428	WerFault.exe	68
984	428	WerFault.exe	68
96	428	WerFault.exe	68

Kills process with taskkill 1 IoCs

evasion

pid	Process
1032	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1032	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 428 wrote to memory of 2328	428	e20d8500c29a288d9ba280531651ad74c81cfc4c77a95bc4f08cce232ff1b6aa.exe	79
PID 428 wrote to memory of 2328	428	e20d8500c29a288d9ba280531651ad74c81cfc4c77a95bc4f08cce232ff1b6aa.exe	79
PID 428 wrote to memory of 2328	428	e20d8500c29a288d9ba280531651ad74c81cfc4c77a95bc4f08cce232ff1b6aa.exe	79
PID 2328 wrote to memory of 1032	2328	cmd.exe	81
PID 2328 wrote to memory of 1032	2328	cmd.exe	81
PID 2328 wrote to memory of 1032	2328	cmd.exe	81

C:\Users\Admin\AppData\Local\Temp\e20d8500c29a288d9ba280531651ad74c81cfc4c77a95bc4f08cce232ff1b6aa.exe
"C:\Users\Admin\AppData\Local\Temp\e20d8500c29a288d9ba280531651ad74c81cfc4c77a95bc4f08cce232ff1b6aa.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:428
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 532
  2⤵
  - Program crash
  PID:4536
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 792
  2⤵
  - Program crash
  PID:2152
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 804
  2⤵
  - Program crash
  PID:360
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 872
  2⤵
  - Program crash
  PID:4860
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 916
  2⤵
  - Program crash
  PID:500
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 1048
  2⤵
  - Program crash
  PID:1540
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 1144
  2⤵
  - Program crash
  PID:4896
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 1156
  2⤵
  - Program crash
  PID:984
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 1308
  2⤵
  - Program crash
  PID:96
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "e20d8500c29a288d9ba280531651ad74c81cfc4c77a95bc4f08cce232ff1b6aa.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\e20d8500c29a288d9ba280531651ad74c81cfc4c77a95bc4f08cce232ff1b6aa.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2328
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "e20d8500c29a288d9ba280531651ad74c81cfc4c77a95bc4f08cce232ff1b6aa.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1032

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

Replay Monitor

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Downloads

memory/428-118-0x0000000002EB0000-0x0000000002FB0000-memory.dmp

Filesize
1024KB

Download
memory/428-119-0x0000000002DD0000-0x0000000002E10000-memory.dmp

Filesize
256KB

Download
memory/428-120-0x0000000000400000-0x0000000002B5D000-memory.dmp

Filesize
39.4MB

Download
memory/428-122-0x0000000000400000-0x0000000002B5D000-memory.dmp

Filesize
39.4MB

Download
memory/428-123-0x0000000002DD0000-0x0000000002E10000-memory.dmp

Filesize
256KB

Download