gcleaner | f873c1a418170113f79e3356c5b8285beab0cc44428c1887194c268615ff19d3

General

Target

JaffaCakes118_6c8687d57b149be4e5575afa1794f283.exe
Size

409KB
MD5

6c8687d57b149be4e5575afa1794f283
SHA1

a228c867b0ceacbb75ab44ec45dae68c081c4df1
SHA256

f873c1a418170113f79e3356c5b8285beab0cc44428c1887194c268615ff19d3
SHA512

d599b32d0dc7bb625f07973097f85db1ef25afa0e919008095a3cb395d5cf8c8480e8f3b5450719f0a497a772ad8ad7bd012297d97ba989ec6c01141fbac221b
SSDEEP

12288:KN+bBm5x8WjedFR/X7dNXvaXanqLNL8N5c:Kj5xzjeN/X7dNEanQ

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/1968-2-0x0000000001870000-0x00000000018B8000-memory.dmp	family_onlylogger
behavioral2/memory/1968-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/1968-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/1968-5-0x0000000001870000-0x00000000018B8000-memory.dmp	family_onlylogger
behavioral2/memory/1968-4-0x0000000000400000-0x00000000016D9000-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	JaffaCakes118_6c8687d57b149be4e5575afa1794f283.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
4528	1968	WerFault.exe	81
1532	1968	WerFault.exe	81
1588	1968	WerFault.exe	81
2456	1968	WerFault.exe	81
5004	1968	WerFault.exe	81
1756	1968	WerFault.exe	81
1356	1968	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	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6c8687d57b149be4e5575afa1794f283.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1848	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1848	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 228	1968	JaffaCakes118_6c8687d57b149be4e5575afa1794f283.exe	99
PID 1968 wrote to memory of 228	1968	JaffaCakes118_6c8687d57b149be4e5575afa1794f283.exe	99
PID 1968 wrote to memory of 228	1968	JaffaCakes118_6c8687d57b149be4e5575afa1794f283.exe	99
PID 228 wrote to memory of 1848	228	cmd.exe	103
PID 228 wrote to memory of 1848	228	cmd.exe	103
PID 228 wrote to memory of 1848	228	cmd.exe	103

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c8687d57b149be4e5575afa1794f283.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c8687d57b149be4e5575afa1794f283.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1968 -s 692
  2⤵
  - Program crash
  PID:4528
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1968 -s 784
  2⤵
  - Program crash
  PID:1532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1968 -s 928
  2⤵
  - Program crash
  PID:1588
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1968 -s 796
  2⤵
  - Program crash
  PID:2456
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1968 -s 788
  2⤵
  - Program crash
  PID:5004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1968 -s 984
  2⤵
  - Program crash
  PID:1756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "JaffaCakes118_6c8687d57b149be4e5575afa1794f283.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c8687d57b149be4e5575afa1794f283.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:228
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "JaffaCakes118_6c8687d57b149be4e5575afa1794f283.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1848
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1968 -s 952
  2⤵
  - Program crash
  PID:1356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1968 -ip 1968
1⤵
PID:2648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1968 -ip 1968
1⤵
PID:1100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 1968 -ip 1968
1⤵
PID:524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1968 -ip 1968
1⤵
PID:3436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1968 -ip 1968
1⤵
PID:216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 1968 -ip 1968
1⤵
PID:4860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1968 -ip 1968
1⤵
PID:232

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/1968-1-0x00000000018D0000-0x00000000019D0000-memory.dmp

Filesize
1024KB

Download
memory/1968-2-0x0000000001870000-0x00000000018B8000-memory.dmp

Filesize
288KB

Download
memory/1968-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1968-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1968-5-0x0000000001870000-0x00000000018B8000-memory.dmp

Filesize
288KB

Download
memory/1968-4-0x0000000000400000-0x00000000016D9000-memory.dmp

Filesize
18.8MB

Download

Analysis

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