gcleaner | bb5d78931ceb7836f22fe7f18d5a75d6a6fb6bd4fa5698b6dbc8758c0d6724f3

General

Target

ccf66bd00babb14dfcbf7d1f13625c94_JaffaCakes118.exe
Size

356KB
MD5

ccf66bd00babb14dfcbf7d1f13625c94
SHA1

2a4c6e9245c473bc18f3dabcacbf59a9588f7ebd
SHA256

bb5d78931ceb7836f22fe7f18d5a75d6a6fb6bd4fa5698b6dbc8758c0d6724f3
SHA512

79db965b9995f327457d9de5ee37fe0ec656610e395c9b8f5541928e479c4932b937998cecc613bc10e5e36cbf89c7408b5e31a92f10cad989cbacd5d49ab830
SSDEEP

6144:uvVJBGUIyAZCup0M8PTBnBK3lCnlAgIhqeyoV7NBaz4k7xO21DON:udPLIyA5p25BOlum/Yey+BBCxO6ON

Score

10^/10

gcleaner onlylogger discovery loader

Malware Config

Extracted

Family

gcleaner

C2

gcl-page.biz

194.145.227.161

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/4764-2-0x0000000000890000-0x00000000008D8000-memory.dmp	family_onlylogger
behavioral2/memory/4764-3-0x0000000000400000-0x000000000044B000-memory.dmp	family_onlylogger
behavioral2/memory/4764-6-0x0000000000400000-0x000000000044B000-memory.dmp	family_onlylogger
behavioral2/memory/4764-5-0x0000000000890000-0x00000000008D8000-memory.dmp	family_onlylogger
behavioral2/memory/4764-4-0x0000000000400000-0x0000000000889000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	ccf66bd00babb14dfcbf7d1f13625c94_JaffaCakes118.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
1240	4764	WerFault.exe	81
1176	4764	WerFault.exe	81
232	4764	WerFault.exe	81
4824	4764	WerFault.exe	81
4580	4764	WerFault.exe	81
1964	4764	WerFault.exe	81
1576	4764	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	ccf66bd00babb14dfcbf7d1f13625c94_JaffaCakes118.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
4604	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4604	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4764 wrote to memory of 1872	4764	ccf66bd00babb14dfcbf7d1f13625c94_JaffaCakes118.exe	95
PID 4764 wrote to memory of 1872	4764	ccf66bd00babb14dfcbf7d1f13625c94_JaffaCakes118.exe	95
PID 4764 wrote to memory of 1872	4764	ccf66bd00babb14dfcbf7d1f13625c94_JaffaCakes118.exe	95
PID 1872 wrote to memory of 4604	1872	cmd.exe	99
PID 1872 wrote to memory of 4604	1872	cmd.exe	99
PID 1872 wrote to memory of 4604	1872	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\ccf66bd00babb14dfcbf7d1f13625c94_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ccf66bd00babb14dfcbf7d1f13625c94_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4764
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 736
  2⤵
  - Program crash
  PID:1240
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 768
  2⤵
  - Program crash
  PID:1176
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 920
  2⤵
  - Program crash
  PID:232
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 784
  2⤵
  - Program crash
  PID:4824
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 784
  2⤵
  - Program crash
  PID:4580
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 968
  2⤵
  - Program crash
  PID:1964
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "ccf66bd00babb14dfcbf7d1f13625c94_JaffaCakes118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\ccf66bd00babb14dfcbf7d1f13625c94_JaffaCakes118.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1872
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "ccf66bd00babb14dfcbf7d1f13625c94_JaffaCakes118.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4604
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 1128
  2⤵
  - Program crash
  PID:1576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4764 -ip 4764
1⤵
PID:5068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4764 -ip 4764
1⤵
PID:3128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4764 -ip 4764
1⤵
PID:764

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4764 -ip 4764
1⤵
PID:4188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4764 -ip 4764
1⤵
PID:1444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4764 -ip 4764
1⤵
PID:3932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4764 -ip 4764
1⤵
PID:2580

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/4764-1-0x0000000000B00000-0x0000000000C00000-memory.dmp

Filesize
1024KB

Download
memory/4764-2-0x0000000000890000-0x00000000008D8000-memory.dmp

Filesize
288KB

Download
memory/4764-3-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4764-6-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4764-5-0x0000000000890000-0x00000000008D8000-memory.dmp

Filesize
288KB

Download
memory/4764-4-0x0000000000400000-0x0000000000889000-memory.dmp

Filesize
4.5MB

Download

Analysis

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