gcleaner | 0970b2e0391fe778c790d0c7ecb98d36def554fbfe1f3776b8cbf7f96eddc684

General

Target

0970b2e0391fe778c790d0c7ecb98d36def554fbfe1f3776b8cbf7f96eddc684.exe
Size

332KB
MD5

d8a65cfcfad34a96ec277ac0952b4d7e
SHA1

4efebca2c304837e12bca351529f1963bc479799
SHA256

0970b2e0391fe778c790d0c7ecb98d36def554fbfe1f3776b8cbf7f96eddc684
SHA512

dd6253508c85ea897507d767fb65e00d813f816a2010e26c4c781f94b246c5d540b4b2591a93f51b31da34476b224e07e979a99349f42dbdeb4f708ea71f0f5f
SSDEEP

6144:TBSTuWUckSbLG37/NG2ZO7nK/kgUaYJIpOok7+K5:TBSTuWUye37/HUnK/kp+u+Y

Score

10^/10

gcleaner onlylogger discovery loader

Malware Config

Extracted

Family

gcleaner

C2

ggg-cl.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/3220-2-0x00000000025C0000-0x0000000002608000-memory.dmp	family_onlylogger
behavioral2/memory/3220-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/3220-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/3220-5-0x00000000025C0000-0x0000000002608000-memory.dmp	family_onlylogger
behavioral2/memory/3220-4-0x0000000000400000-0x0000000000883000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	0970b2e0391fe778c790d0c7ecb98d36def554fbfe1f3776b8cbf7f96eddc684.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
3440	3220	WerFault.exe	81
1556	3220	WerFault.exe	81
4820	3220	WerFault.exe	81
4080	3220	WerFault.exe	81
4204	3220	WerFault.exe	81
3268	3220	WerFault.exe	81
3296	3220	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	0970b2e0391fe778c790d0c7ecb98d36def554fbfe1f3776b8cbf7f96eddc684.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
1324	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1324	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3220 wrote to memory of 1752	3220	0970b2e0391fe778c790d0c7ecb98d36def554fbfe1f3776b8cbf7f96eddc684.exe	100
PID 3220 wrote to memory of 1752	3220	0970b2e0391fe778c790d0c7ecb98d36def554fbfe1f3776b8cbf7f96eddc684.exe	100
PID 3220 wrote to memory of 1752	3220	0970b2e0391fe778c790d0c7ecb98d36def554fbfe1f3776b8cbf7f96eddc684.exe	100
PID 1752 wrote to memory of 1324	1752	cmd.exe	104
PID 1752 wrote to memory of 1324	1752	cmd.exe	104
PID 1752 wrote to memory of 1324	1752	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\0970b2e0391fe778c790d0c7ecb98d36def554fbfe1f3776b8cbf7f96eddc684.exe
"C:\Users\Admin\AppData\Local\Temp\0970b2e0391fe778c790d0c7ecb98d36def554fbfe1f3776b8cbf7f96eddc684.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3220
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3220 -s 736
  2⤵
  - Program crash
  PID:3440
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3220 -s 796
  2⤵
  - Program crash
  PID:1556
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3220 -s 928
  2⤵
  - Program crash
  PID:4820
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3220 -s 940
  2⤵
  - Program crash
  PID:4080
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3220 -s 936
  2⤵
  - Program crash
  PID:4204
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3220 -s 784
  2⤵
  - Program crash
  PID:3268
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "0970b2e0391fe778c790d0c7ecb98d36def554fbfe1f3776b8cbf7f96eddc684.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\0970b2e0391fe778c790d0c7ecb98d36def554fbfe1f3776b8cbf7f96eddc684.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1752
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "0970b2e0391fe778c790d0c7ecb98d36def554fbfe1f3776b8cbf7f96eddc684.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1324
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3220 -s 1072
  2⤵
  - Program crash
  PID:3296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3220 -ip 3220
1⤵
PID:1036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3220 -ip 3220
1⤵
PID:3680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3220 -ip 3220
1⤵
PID:4184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3220 -ip 3220
1⤵
PID:1656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3220 -ip 3220
1⤵
PID:4420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3220 -ip 3220
1⤵
PID:2120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3220 -ip 3220
1⤵
PID:1932

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

memory/3220-1-0x0000000000920000-0x0000000000A20000-memory.dmp

Filesize
1024KB

Download
memory/3220-2-0x00000000025C0000-0x0000000002608000-memory.dmp

Filesize
288KB

Download
memory/3220-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3220-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3220-5-0x00000000025C0000-0x0000000002608000-memory.dmp

Filesize
288KB

Download
memory/3220-4-0x0000000000400000-0x0000000000883000-memory.dmp

Filesize
4.5MB

Download

Analysis

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