gcleaner | 096bfa3e2f4fed058fb0e59c58cdeb20e2e19fa321f77bfcdf1215160afdd753

General

Target

7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.exe
Size

338KB
MD5

7ef9fc6490d54da33055614b608cbf2e
SHA1

2b4c1379e1fdd86cf94e588ec98e0a8c7207a064
SHA256

096bfa3e2f4fed058fb0e59c58cdeb20e2e19fa321f77bfcdf1215160afdd753
SHA512

f6fb6da9996310c2f5ba08fd9f7023c13e88b21b0d4b8a8ce19716e63240982f0e23b61f5c426a4ae224734a6f49ebca3fe4e859504c130d7dc68a838db1bf77
SSDEEP

6144:pvg9I9HtsWVrwzq3tgtBkOZ45t1RRBZx:pvg9I966rwgP9

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

Processes:

resource	yara_rule
behavioral2/memory/4768-2-0x0000000000E20000-0x0000000000E68000-memory.dmp	family_onlylogger
behavioral2/memory/4768-3-0x0000000000400000-0x000000000044B000-memory.dmp	family_onlylogger
behavioral2/memory/4768-6-0x0000000000400000-0x000000000044B000-memory.dmp	family_onlylogger
behavioral2/memory/4768-5-0x0000000000E20000-0x0000000000E68000-memory.dmp	family_onlylogger
behavioral2/memory/4768-4-0x0000000000400000-0x0000000000885000-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

Processes:

7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 6 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
116	4768	WerFault.exe	7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.exe
3720	4768	WerFault.exe	7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.exe
4216	4768	WerFault.exe	7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.exe
4368	4768	WerFault.exe	7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.exe
5088	4768	WerFault.exe	7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.exe
2828	4768	WerFault.exe	7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.exe

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

Processes:

7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.execmd.exetaskkill.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7ef9fc6490d54da33055614b608cbf2e_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

Processes:

taskkill.exe

pid process

1392 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1392 taskkill.exe

pid	process
1392	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1392	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.execmd.exe

description	pid	process	target process
PID 4768 wrote to memory of 1064	4768	7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.exe	cmd.exe
PID 4768 wrote to memory of 1064	4768	7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.exe	cmd.exe
PID 4768 wrote to memory of 1064	4768	7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.exe	cmd.exe
PID 1064 wrote to memory of 1392	1064	cmd.exe	taskkill.exe
PID 1064 wrote to memory of 1392	1064	cmd.exe	taskkill.exe
PID 1064 wrote to memory of 1392	1064	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4768
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4768 -s 684
  2⤵
  - Program crash
  PID:116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4768 -s 784
  2⤵
  - Program crash
  PID:3720
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4768 -s 792
  2⤵
  - Program crash
  PID:4216
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4768 -s 772
  2⤵
  - Program crash
  PID:4368
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4768 -s 772
  2⤵
  - Program crash
  PID:5088
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4768 -s 944
  2⤵
  - Program crash
  PID:2828
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1064
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "7ef9fc6490d54da33055614b608cbf2e_JaffaCakes118.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4768 -ip 4768
1⤵
PID:2000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4768 -ip 4768
1⤵
PID:2328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4768 -ip 4768
1⤵
PID:4148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4768 -ip 4768
1⤵
PID:3312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4768 -ip 4768
1⤵
PID:2236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4768 -ip 4768
1⤵
PID:4876

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

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Downloads

memory/4768-1-0x0000000000BE0000-0x0000000000CE0000-memory.dmp

Filesize
1024KB

Download
memory/4768-2-0x0000000000E20000-0x0000000000E68000-memory.dmp

Filesize
288KB

Download
memory/4768-3-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4768-6-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4768-5-0x0000000000E20000-0x0000000000E68000-memory.dmp

Filesize
288KB

Download
memory/4768-4-0x0000000000400000-0x0000000000885000-memory.dmp

Filesize
4.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads