gcleaner | 44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486

General

Target

44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe
Size

424KB
MD5

02bf16dd3c3a5363f086d7d2dad97adc
SHA1

0ae18f784f2cbb0f4f3055252d36286c7f39340d
SHA256

44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486
SHA512

2ce991a2372d878791d1fd56968047cdf8081527738f1d741035478e1cc512540d309648cb747b798933be5a04c45e25b0598e7941871567c712a01016cd83de
SSDEEP

6144:1H/J5DPNWssI8n0wuHBsKvXGK2zxhG3Wl+vrtHSbUqYdAon:1fJ5DPNvR8n/zK/GKo/l+v5ygqWBn

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
Downloads MZ/PE file

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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 10 IoCs

pid	pid_target	Process	procid_target
244	1356	WerFault.exe	83
4812	1356	WerFault.exe	83
4724	1356	WerFault.exe	83
4580	1356	WerFault.exe	83
1788	1356	WerFault.exe	83
4292	1356	WerFault.exe	83
4052	1356	WerFault.exe	83
4836	1356	WerFault.exe	83
1180	1356	WerFault.exe	83
1364	1356	WerFault.exe	83

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	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3664	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3664	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1356 wrote to memory of 4776	1356	44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe	113
PID 1356 wrote to memory of 4776	1356	44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe	113
PID 1356 wrote to memory of 4776	1356	44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe	113
PID 4776 wrote to memory of 3664	4776	cmd.exe	117
PID 4776 wrote to memory of 3664	4776	cmd.exe	117
PID 4776 wrote to memory of 3664	4776	cmd.exe	117

C:\Users\Admin\AppData\Local\Temp\44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe
"C:\Users\Admin\AppData\Local\Temp\44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1356
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 440
  2⤵
  - Program crash
  PID:244
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 764
  2⤵
  - Program crash
  PID:4812
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 764
  2⤵
  - Program crash
  PID:4724
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 764
  2⤵
  - Program crash
  PID:4580
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 796
  2⤵
  - Program crash
  PID:1788
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 928
  2⤵
  - Program crash
  PID:4292
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 1004
  2⤵
  - Program crash
  PID:4052
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 1108
  2⤵
  - Program crash
  PID:4836
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 1604
  2⤵
  - Program crash
  PID:1180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4776
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "44e24536e35b628e100cdf680c24818294bf3e4553458df64a02b75686977486.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3664
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 1632
  2⤵
  - Program crash
  PID:1364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1356 -ip 1356
1⤵
PID:2924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1356 -ip 1356
1⤵
PID:3244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1356 -ip 1356
1⤵
PID:2096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1356 -ip 1356
1⤵
PID:1132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 1356 -ip 1356
1⤵
PID:3396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1356 -ip 1356
1⤵
PID:4160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 1356 -ip 1356
1⤵
PID:4568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1356 -ip 1356
1⤵
PID:4104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1356 -ip 1356
1⤵
PID:2692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1356 -ip 1356
1⤵
PID:1196

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\OD2FK6XO\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1356-2-0x0000000000790000-0x00000000007CC000-memory.dmp

Filesize
240KB

Download
memory/1356-1-0x0000000000840000-0x0000000000940000-memory.dmp

Filesize
1024KB

Download
memory/1356-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1356-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1356-13-0x0000000000840000-0x0000000000940000-memory.dmp

Filesize
1024KB

Download
memory/1356-16-0x0000000000790000-0x00000000007CC000-memory.dmp

Filesize
240KB

Download
memory/1356-15-0x0000000000400000-0x00000000005FE000-memory.dmp

Filesize
2.0MB

Download
memory/1356-17-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1356-29-0x0000000000400000-0x00000000005FE000-memory.dmp

Filesize
2.0MB

Download
memory/1356-35-0x0000000000400000-0x00000000005FE000-memory.dmp

Filesize
2.0MB

Download
memory/1356-36-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download

Analysis

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