gcleaner | 71f9fb88517309d647dd7193cabedffcdadf4a06de61494105bca5ad2641fd65

General

Target

JaffaCakes118_604207f9f6117156bf684c55d4d46000.exe
Size

401KB
MD5

604207f9f6117156bf684c55d4d46000
SHA1

eb769dff8dad891e5162d9dc1c0b41311ad4e6cf
SHA256

71f9fb88517309d647dd7193cabedffcdadf4a06de61494105bca5ad2641fd65
SHA512

5e2608468dc7bc2f19654791aa313c6211549794d847d4db19ee188b9c0c7b046d0a70cd2e501c2a590a7a8b6922803f6c361140eafacf982d59315913e556c8
SSDEEP

6144:SIAvu3x1GEVMtDURIvEk3GaXBBQfAO0ITVY75z4XShqe+nPr1lj:SIUu3XZVMtDBvXhkVRTVYlznqe+Pr1

Score

10^/10

gcleaner onlylogger discovery loader

Malware Config

Extracted

Family

gcleaner

C2

ppp-gl.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/3352-2-0x0000000002F10000-0x0000000002F59000-memory.dmp	family_onlylogger
behavioral2/memory/3352-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/3352-5-0x0000000002F10000-0x0000000002F59000-memory.dmp	family_onlylogger
behavioral2/memory/3352-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/3352-4-0x0000000000400000-0x0000000002DBC000-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	JaffaCakes118_604207f9f6117156bf684c55d4d46000.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
4736	3352	WerFault.exe	81
3604	3352	WerFault.exe	81
2368	3352	WerFault.exe	81
1172	3352	WerFault.exe	81
4020	3352	WerFault.exe	81
2776	3352	WerFault.exe	81
2840	3352	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	JaffaCakes118_604207f9f6117156bf684c55d4d46000.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
648	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	648	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3352 wrote to memory of 4460	3352	JaffaCakes118_604207f9f6117156bf684c55d4d46000.exe	95
PID 3352 wrote to memory of 4460	3352	JaffaCakes118_604207f9f6117156bf684c55d4d46000.exe	95
PID 3352 wrote to memory of 4460	3352	JaffaCakes118_604207f9f6117156bf684c55d4d46000.exe	95
PID 4460 wrote to memory of 648	4460	cmd.exe	99
PID 4460 wrote to memory of 648	4460	cmd.exe	99
PID 4460 wrote to memory of 648	4460	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_604207f9f6117156bf684c55d4d46000.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_604207f9f6117156bf684c55d4d46000.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3352
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3352 -s 688
  2⤵
  - Program crash
  PID:4736
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3352 -s 756
  2⤵
  - Program crash
  PID:3604
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3352 -s 928
  2⤵
  - Program crash
  PID:2368
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3352 -s 936
  2⤵
  - Program crash
  PID:1172
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3352 -s 956
  2⤵
  - Program crash
  PID:4020
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3352 -s 964
  2⤵
  - Program crash
  PID:2776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "JaffaCakes118_604207f9f6117156bf684c55d4d46000.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_604207f9f6117156bf684c55d4d46000.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4460
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "JaffaCakes118_604207f9f6117156bf684c55d4d46000.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:648
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3352 -s 1056
  2⤵
  - Program crash
  PID:2840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3352 -ip 3352
1⤵
PID:2396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3352 -ip 3352
1⤵
PID:2572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3352 -ip 3352
1⤵
PID:4816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3352 -ip 3352
1⤵
PID:1436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3352 -ip 3352
1⤵
PID:2156

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3352 -ip 3352
1⤵
PID:2260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 3352 -ip 3352
1⤵
PID:4220

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/3352-1-0x0000000003040000-0x0000000003140000-memory.dmp

Filesize
1024KB

Download
memory/3352-2-0x0000000002F10000-0x0000000002F59000-memory.dmp

Filesize
292KB

Download
memory/3352-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3352-5-0x0000000002F10000-0x0000000002F59000-memory.dmp

Filesize
292KB

Download
memory/3352-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3352-4-0x0000000000400000-0x0000000002DBC000-memory.dmp

Filesize
41.7MB

Download

Analysis

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