gcleaner | 86eea5405b09a3100a40691d3e2ad7b1d4f7a9f0796e14b8ecc5c381bc80d3ca

General

Target

JaffaCakes118_cb8ebd25f8838510e3e65ff24e988f86.exe
Size

409KB
MD5

cb8ebd25f8838510e3e65ff24e988f86
SHA1

a87c09ccbf33ac48b4d3d5ed6838bf5ec31074bd
SHA256

86eea5405b09a3100a40691d3e2ad7b1d4f7a9f0796e14b8ecc5c381bc80d3ca
SHA512

bcc256faf2c2b50b6d5b44a03129c9612e9aaf981aaf1abc3009ca30ba27a9936cf84ccdaa70ed2835204505d7c79ed4ba103f0c579c922d48cd01e96f9a28a4
SSDEEP

12288:257Jh9ckVKXJnSWxrDyJUw0omE7YJacfB:2571wJnSWxrDyJtmHJ

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/4948-2-0x0000000003440000-0x0000000003488000-memory.dmp	family_onlylogger
behavioral2/memory/4948-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/4948-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/4948-5-0x0000000003440000-0x0000000003488000-memory.dmp	family_onlylogger
behavioral2/memory/4948-4-0x0000000000400000-0x00000000016D9000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_cb8ebd25f8838510e3e65ff24e988f86.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
5116	4948	WerFault.exe	81
2908	4948	WerFault.exe	81
1272	4948	WerFault.exe	81
3664	4948	WerFault.exe	81
3412	4948	WerFault.exe	81
228	4948	WerFault.exe	81
3280	4948	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_cb8ebd25f8838510e3e65ff24e988f86.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
5068	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5068	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4948 wrote to memory of 2736	4948	JaffaCakes118_cb8ebd25f8838510e3e65ff24e988f86.exe	95
PID 4948 wrote to memory of 2736	4948	JaffaCakes118_cb8ebd25f8838510e3e65ff24e988f86.exe	95
PID 4948 wrote to memory of 2736	4948	JaffaCakes118_cb8ebd25f8838510e3e65ff24e988f86.exe	95
PID 2736 wrote to memory of 5068	2736	cmd.exe	99
PID 2736 wrote to memory of 5068	2736	cmd.exe	99
PID 2736 wrote to memory of 5068	2736	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cb8ebd25f8838510e3e65ff24e988f86.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cb8ebd25f8838510e3e65ff24e988f86.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4948
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 736
  2⤵
  - Program crash
  PID:5116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 784
  2⤵
  - Program crash
  PID:2908
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 928
  2⤵
  - Program crash
  PID:1272
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 948
  2⤵
  - Program crash
  PID:3664
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 788
  2⤵
  - Program crash
  PID:3412
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 968
  2⤵
  - Program crash
  PID:228
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "JaffaCakes118_cb8ebd25f8838510e3e65ff24e988f86.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cb8ebd25f8838510e3e65ff24e988f86.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2736
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "JaffaCakes118_cb8ebd25f8838510e3e65ff24e988f86.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:5068
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 760
  2⤵
  - Program crash
  PID:3280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4948 -ip 4948
1⤵
PID:1356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4948 -ip 4948
1⤵
PID:3296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4948 -ip 4948
1⤵
PID:4872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4948 -ip 4948
1⤵
PID:2440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4948 -ip 4948
1⤵
PID:4856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4948 -ip 4948
1⤵
PID:4672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4948 -ip 4948
1⤵
PID:1332

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/4948-1-0x00000000016F0000-0x00000000017F0000-memory.dmp

Filesize
1024KB

Download
memory/4948-2-0x0000000003440000-0x0000000003488000-memory.dmp

Filesize
288KB

Download
memory/4948-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4948-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4948-5-0x0000000003440000-0x0000000003488000-memory.dmp

Filesize
288KB

Download
memory/4948-4-0x0000000000400000-0x00000000016D9000-memory.dmp

Filesize
18.8MB

Download

Analysis

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