gcleaner | 75ebc3327a9adb4a9a7a78dbe0927c25d53a7e8a3cfd2fead2580e7dcbea44a4

General

Target

JaffaCakes118_57adc8f2d8b412478bbe12f650d204d9.exe
Size

324KB
MD5

57adc8f2d8b412478bbe12f650d204d9
SHA1

68e44600199d09d089b0d1578877baa1c4328ad3
SHA256

75ebc3327a9adb4a9a7a78dbe0927c25d53a7e8a3cfd2fead2580e7dcbea44a4
SHA512

65899b1cf4d8a9efcbce235c89b668d4c75fee3315ac293815e54eb6bb657d6ba51422df7d37f479d3c710791c55e6f441b0f5593b6828e89b3752f61eba0d78
SSDEEP

6144:IIUQFwFFglbbdDFnQk5LoFfGl6G9hCaY7B/:MawolbbxFQAh70

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/4796-2-0x0000000002C60000-0x0000000002CA8000-memory.dmp	family_onlylogger
behavioral2/memory/4796-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/4796-5-0x0000000002C60000-0x0000000002CA8000-memory.dmp	family_onlylogger
behavioral2/memory/4796-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/4796-4-0x0000000000400000-0x0000000002B90000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_57adc8f2d8b412478bbe12f650d204d9.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
2860	4796	WerFault.exe	82
620	4796	WerFault.exe	82
1368	4796	WerFault.exe	82
1644	4796	WerFault.exe	82
1488	4796	WerFault.exe	82
2304	4796	WerFault.exe	82
3196	4796	WerFault.exe	82

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_57adc8f2d8b412478bbe12f650d204d9.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
2320	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2320	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4796 wrote to memory of 3760	4796	JaffaCakes118_57adc8f2d8b412478bbe12f650d204d9.exe	99
PID 4796 wrote to memory of 3760	4796	JaffaCakes118_57adc8f2d8b412478bbe12f650d204d9.exe	99
PID 4796 wrote to memory of 3760	4796	JaffaCakes118_57adc8f2d8b412478bbe12f650d204d9.exe	99
PID 3760 wrote to memory of 2320	3760	cmd.exe	103
PID 3760 wrote to memory of 2320	3760	cmd.exe	103
PID 3760 wrote to memory of 2320	3760	cmd.exe	103

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_57adc8f2d8b412478bbe12f650d204d9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_57adc8f2d8b412478bbe12f650d204d9.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4796
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4796 -s 688
  2⤵
  - Program crash
  PID:2860
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4796 -s 784
  2⤵
  - Program crash
  PID:620
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4796 -s 876
  2⤵
  - Program crash
  PID:1368
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4796 -s 724
  2⤵
  - Program crash
  PID:1644
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4796 -s 888
  2⤵
  - Program crash
  PID:1488
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4796 -s 952
  2⤵
  - Program crash
  PID:2304
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "JaffaCakes118_57adc8f2d8b412478bbe12f650d204d9.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_57adc8f2d8b412478bbe12f650d204d9.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3760
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "JaffaCakes118_57adc8f2d8b412478bbe12f650d204d9.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2320
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4796 -s 1064
  2⤵
  - Program crash
  PID:3196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4796 -ip 4796
1⤵
PID:1944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4796 -ip 4796
1⤵
PID:4520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4796 -ip 4796
1⤵
PID:1896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4796 -ip 4796
1⤵
PID:3820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4796 -ip 4796
1⤵
PID:2348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4796 -ip 4796
1⤵
PID:4664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4796 -ip 4796
1⤵
PID:748

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/4796-1-0x0000000002E90000-0x0000000002F90000-memory.dmp

Filesize
1024KB

Download
memory/4796-2-0x0000000002C60000-0x0000000002CA8000-memory.dmp

Filesize
288KB

Download
memory/4796-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4796-5-0x0000000002C60000-0x0000000002CA8000-memory.dmp

Filesize
288KB

Download
memory/4796-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4796-4-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download

Analysis

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