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

Processes:

resource	yara_rule
behavioral2/memory/2904-2-0x0000000002F60000-0x0000000002FA9000-memory.dmp	family_onlylogger
behavioral2/memory/2904-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/2904-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/2904-5-0x0000000002F60000-0x0000000002FA9000-memory.dmp	family_onlylogger
behavioral2/memory/2904-4-0x0000000000400000-0x0000000002DBC000-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

Processes:

b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\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

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	Process	procid_target
464	2904	WerFault.exe	81
1632	2904	WerFault.exe	81
1140	2904	WerFault.exe	81
4512	2904	WerFault.exe	81
4700	2904	WerFault.exe	81
1060	2904	WerFault.exe	81
100	2904	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

Processes:

taskkill.exeb7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs

evasion

Processes:

taskkill.exe

pid	Process
876	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description	pid	Process
Token: SeDebugPrivilege	876	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.execmd.exe

description	pid	Process	procid_target
PID 2904 wrote to memory of 4432	2904	b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe	97
PID 2904 wrote to memory of 4432	2904	b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe	97
PID 2904 wrote to memory of 4432	2904	b7d59a03bc8a405793ad211981c8e38d43884c56b1095470eaeb2b8d4bf7f00c.exe	97
PID 4432 wrote to memory of 876	4432	cmd.exe	101
PID 4432 wrote to memory of 876	4432	cmd.exe	101
PID 4432 wrote to memory of 876	4432	cmd.exe	101

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:2904
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 736
  2⤵
  - Program crash
  PID:464
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 776
  2⤵
  - Program crash
  PID:1632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 928
  2⤵
  - Program crash
  PID:1140
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 948
  2⤵
  - Program crash
  PID:4512
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 928
  2⤵
  - Program crash
  PID:4700
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 916
  2⤵
  - Program crash
  PID:1060
- 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:4432
- - 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:876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 976
  2⤵
  - Program crash
  PID:100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2904 -ip 2904
1⤵
PID:3652

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2904 -ip 2904
1⤵
PID:2628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2904 -ip 2904
1⤵
PID:2736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2904 -ip 2904
1⤵
PID:4808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2904 -ip 2904
1⤵
PID:3028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2904 -ip 2904
1⤵
PID:2456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 2904 -ip 2904
1⤵
PID:3932

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/2904-1-0x0000000002FB0000-0x00000000030B0000-memory.dmp

Filesize
1024KB

Download
memory/2904-2-0x0000000002F60000-0x0000000002FA9000-memory.dmp

Filesize
292KB

Download
memory/2904-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2904-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2904-5-0x0000000002F60000-0x0000000002FA9000-memory.dmp

Filesize
292KB

Download
memory/2904-4-0x0000000000400000-0x0000000002DBC000-memory.dmp

Filesize
41.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads