gcleaner | 9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980

General

Target

9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe
Size

423KB
MD5

e53e00b653e165a52b59596e473f0732
SHA1

3ddfb7257debb8ee477d1d98d0a602bc740e4b07
SHA256

9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980
SHA512

b128718125356e90388d619ab67a7b2b0a252ff7205c4869975ea9878f31c49693411bd9449beb4f39d52259c4587cb5a8df0e897ff34e7b0b1558426cc27656
SSDEEP

12288:rxPJGZfVBlFcPi6m+Vzza5yocJRxzwEvEwk:rDafNFcPFuaNwwE

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

C2

80.66.75.114

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe

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
3144	2456	WerFault.exe	82
3764	2456	WerFault.exe	82
3400	2456	WerFault.exe	82
3636	2456	WerFault.exe	82
2416	2456	WerFault.exe	82
3348	2456	WerFault.exe	82
2064	2456	WerFault.exe	82
4876	2456	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
4872	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4872	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2456 wrote to memory of 3708	2456	9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe	109
PID 2456 wrote to memory of 3708	2456	9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe	109
PID 2456 wrote to memory of 3708	2456	9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe	109
PID 3708 wrote to memory of 4872	3708	cmd.exe	113
PID 3708 wrote to memory of 4872	3708	cmd.exe	113
PID 3708 wrote to memory of 4872	3708	cmd.exe	113

C:\Users\Admin\AppData\Local\Temp\9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe
"C:\Users\Admin\AppData\Local\Temp\9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2456
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 748
  2⤵
  - Program crash
  PID:3144
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 756
  2⤵
  - Program crash
  PID:3764
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 756
  2⤵
  - Program crash
  PID:3400
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 784
  2⤵
  - Program crash
  PID:3636
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 904
  2⤵
  - Program crash
  PID:2416
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 980
  2⤵
  - Program crash
  PID:3348
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 1332
  2⤵
  - Program crash
  PID:2064
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3708
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "9b45d116e32bbccf67f0179b0ed4be4c1ffb3bed792e37478a23f0afcf9d1980.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4872
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 1456
  2⤵
  - Program crash
  PID:4876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 2456 -ip 2456
1⤵
PID:2508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2456 -ip 2456
1⤵
PID:3128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2456 -ip 2456
1⤵
PID:1944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2456 -ip 2456
1⤵
PID:3104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2456 -ip 2456
1⤵
PID:2804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2456 -ip 2456
1⤵
PID:1204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2456 -ip 2456
1⤵
PID:3908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2456 -ip 2456
1⤵
PID:4972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\951G8FD5\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2456-2-0x00000000008C0000-0x00000000008ED000-memory.dmp

Filesize
180KB

Download
memory/2456-1-0x0000000000950000-0x0000000000A50000-memory.dmp

Filesize
1024KB

Download
memory/2456-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2456-8-0x0000000000950000-0x0000000000A50000-memory.dmp

Filesize
1024KB

Download
memory/2456-11-0x00000000008C0000-0x00000000008ED000-memory.dmp

Filesize
180KB

Download
memory/2456-10-0x0000000000400000-0x00000000005FE000-memory.dmp

Filesize
2.0MB

Download
memory/2456-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2456-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2456-21-0x0000000000400000-0x00000000005FE000-memory.dmp

Filesize
2.0MB

Download

Analysis

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