gcleaner | b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c

General

Target

b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe
Size

401KB
MD5

1109b55da15dc95c8d6887c559cd8f7e
SHA1

2053f81200e37b3c95933fd9e6b889b4fe83bd7e
SHA256

b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c
SHA512

4edc64eea5b454699f84df01645b75387bb825935d16ab11af8dfb1229edc9549b25eec00e5684d2b0a4aef5e372e0acc05871178f72ee400dddbe86bcde6c2e
SSDEEP

6144:SIAvu3x1GEVMtDURIvEk3GaXBBQfAO0ITVY75z4XShqe+nPr1ljy:SIUu3XZVMtDBvXhkVRTVYlznqe+Pr1E

Score

10^/10

gcleaner onlylogger discovery loader

Malware Config

Extracted

Family

gcleaner

C2

ppp-gl.biz

45.9.20.13

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Gcleaner family
gcleaner
OnlyLogger
A tiny loader that uses IPLogger to get its payload.
loader onlylogger
Onlylogger family
onlylogger

OnlyLogger payload 5 IoCs

resource	yara_rule
behavioral2/memory/3188-2-0x0000000004B10000-0x0000000004B59000-memory.dmp	family_onlylogger
behavioral2/memory/3188-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/3188-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/3188-5-0x0000000004B10000-0x0000000004B59000-memory.dmp	family_onlylogger
behavioral2/memory/3188-4-0x0000000000400000-0x0000000002DBC000-memory.dmp	family_onlylogger

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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe

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

System Information Discovery
T1082

Program crash 7 IoCs

pid	pid_target	Process	procid_target
864	3188	WerFault.exe	81
3780	3188	WerFault.exe	81
5004	3188	WerFault.exe	81
2552	3188	WerFault.exe	81
1724	3188	WerFault.exe	81
2740	3188	WerFault.exe	81
2272	3188	WerFault.exe	81

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	b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.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
2832	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2832	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3188 wrote to memory of 868	3188	b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe	95
PID 3188 wrote to memory of 868	3188	b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe	95
PID 3188 wrote to memory of 868	3188	b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe	95
PID 868 wrote to memory of 2832	868	cmd.exe	99
PID 868 wrote to memory of 2832	868	cmd.exe	99
PID 868 wrote to memory of 2832	868	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe
"C:\Users\Admin\AppData\Local\Temp\b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3188
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 724
  2⤵
  - Program crash
  PID:864
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 788
  2⤵
  - Program crash
  PID:3780
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 928
  2⤵
  - Program crash
  PID:5004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 916
  2⤵
  - Program crash
  PID:2552
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 916
  2⤵
  - Program crash
  PID:1724
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 964
  2⤵
  - Program crash
  PID:2740
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:868
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2832
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 744
  2⤵
  - Program crash
  PID:2272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3188 -ip 3188
1⤵
PID:4976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3188 -ip 3188
1⤵
PID:4484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3188 -ip 3188
1⤵
PID:4068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 3188 -ip 3188
1⤵
PID:3948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3188 -ip 3188
1⤵
PID:3464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3188 -ip 3188
1⤵
PID:1244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3188 -ip 3188
1⤵
PID:3036

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

Loading Replay Monitor...

Downloads

memory/3188-1-0x0000000003170000-0x0000000003270000-memory.dmp

Filesize
1024KB

Download
memory/3188-2-0x0000000004B10000-0x0000000004B59000-memory.dmp

Filesize
292KB

Download
memory/3188-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3188-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3188-5-0x0000000004B10000-0x0000000004B59000-memory.dmp

Filesize
292KB

Download
memory/3188-4-0x0000000000400000-0x0000000002DBC000-memory.dmp

Filesize
41.7MB

Download

Analysis

Sharing