gcleaner | 946bb6d961cc5cdd58e3772c695fcaf967a68fd83ed8b6bd43029f3fb90c69a0

General

Target

JaffaCakes118_1f6f848957120d740d39b860f479e8b9.exe
Size

439KB
MD5

1f6f848957120d740d39b860f479e8b9
SHA1

8dbccfed0281d7fbb896b48cbc8ee739612bfab7
SHA256

946bb6d961cc5cdd58e3772c695fcaf967a68fd83ed8b6bd43029f3fb90c69a0
SHA512

23920af4b22bb89fc2265063fdd5d097be26fc28b78baac199d0b91424d58a7be3fc358518b0ba8ed871cc07bcb6034bec8e26716602ffb7bdbadcdafc127d8f
SSDEEP

6144:oYO/gkYrO+hEaDW9FU6oHZxfQ9+GX/QIQq0qop+Lv7sBuzJWQs0d7:HDkYr9GOo8ZmoU/QIKqo+L8uzJP9d

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/1116-2-0x0000000003430000-0x0000000003478000-memory.dmp	family_onlylogger
behavioral2/memory/1116-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/1116-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/1116-5-0x0000000003430000-0x0000000003478000-memory.dmp	family_onlylogger
behavioral2/memory/1116-4-0x0000000000400000-0x00000000016E1000-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	JaffaCakes118_1f6f848957120d740d39b860f479e8b9.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
3956	1116	WerFault.exe	83
4384	1116	WerFault.exe	83
3164	1116	WerFault.exe	83
4416	1116	WerFault.exe	83
5012	1116	WerFault.exe	83
2436	1116	WerFault.exe	83
4992	1116	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	JaffaCakes118_1f6f848957120d740d39b860f479e8b9.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
1320	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1320	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1116 wrote to memory of 4000	1116	JaffaCakes118_1f6f848957120d740d39b860f479e8b9.exe	97
PID 1116 wrote to memory of 4000	1116	JaffaCakes118_1f6f848957120d740d39b860f479e8b9.exe	97
PID 1116 wrote to memory of 4000	1116	JaffaCakes118_1f6f848957120d740d39b860f479e8b9.exe	97
PID 4000 wrote to memory of 1320	4000	cmd.exe	101
PID 4000 wrote to memory of 1320	4000	cmd.exe	101
PID 4000 wrote to memory of 1320	4000	cmd.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1f6f848957120d740d39b860f479e8b9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1f6f848957120d740d39b860f479e8b9.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 720
  2⤵
  - Program crash
  PID:3956
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 784
  2⤵
  - Program crash
  PID:4384
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 920
  2⤵
  - Program crash
  PID:3164
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 792
  2⤵
  - Program crash
  PID:4416
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 924
  2⤵
  - Program crash
  PID:5012
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 948
  2⤵
  - Program crash
  PID:2436
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "JaffaCakes118_1f6f848957120d740d39b860f479e8b9.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1f6f848957120d740d39b860f479e8b9.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4000
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "JaffaCakes118_1f6f848957120d740d39b860f479e8b9.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1320
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 1072
  2⤵
  - Program crash
  PID:4992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1116 -ip 1116
1⤵
PID:4952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1116 -ip 1116
1⤵
PID:3996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 1116 -ip 1116
1⤵
PID:3240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 1116 -ip 1116
1⤵
PID:3584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 1116 -ip 1116
1⤵
PID:1076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 1116 -ip 1116
1⤵
PID:4976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 1116 -ip 1116
1⤵
PID:2152

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/1116-1-0x0000000001730000-0x0000000001830000-memory.dmp

Filesize
1024KB

Download
memory/1116-2-0x0000000003430000-0x0000000003478000-memory.dmp

Filesize
288KB

Download
memory/1116-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1116-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1116-5-0x0000000003430000-0x0000000003478000-memory.dmp

Filesize
288KB

Download
memory/1116-4-0x0000000000400000-0x00000000016E1000-memory.dmp

Filesize
18.9MB

Download

Analysis

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