gcleaner | d3ae130dbe49ef7c5b9a8cca96fc259b37439690fece2c8b78978ac1c3e9218a

General

Target

JaffaCakes118_e3e50e67b391094d20138fc23069801c.exe
Size

443KB
MD5

e3e50e67b391094d20138fc23069801c
SHA1

782e6eafef71417c8a23af5c71722befeda4765f
SHA256

d3ae130dbe49ef7c5b9a8cca96fc259b37439690fece2c8b78978ac1c3e9218a
SHA512

d80b283f7cfaef4d2292c9fd4c3fea3225bf944c84fd705da4a6d721836c6740b1fd9cfeacefc908983184be3d83ddf149398380baa0147923559890522e75ce
SSDEEP

12288:Lt+zkr+f7tVq8FHxw2xwDVCnd+wzQOFt:LgI6fxVq8PWDAndRXn

Score

10^/10

gcleaner onlylogger discovery loader

Malware Config

Extracted

Family

gcleaner

C2

gcl-gb.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/2932-2-0x0000000000D40000-0x0000000000D89000-memory.dmp	family_onlylogger
behavioral2/memory/2932-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/2932-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/2932-5-0x0000000000D40000-0x0000000000D89000-memory.dmp	family_onlylogger
behavioral2/memory/2932-4-0x0000000000400000-0x000000000089E000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_e3e50e67b391094d20138fc23069801c.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
1160	2932	WerFault.exe	82
1488	2932	WerFault.exe	82
3696	2932	WerFault.exe	82
1144	2932	WerFault.exe	82
1716	2932	WerFault.exe	82
1012	2932	WerFault.exe	82
3860	2932	WerFault.exe	82

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_e3e50e67b391094d20138fc23069801c.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
1312	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1312	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 3280	2932	JaffaCakes118_e3e50e67b391094d20138fc23069801c.exe	96
PID 2932 wrote to memory of 3280	2932	JaffaCakes118_e3e50e67b391094d20138fc23069801c.exe	96
PID 2932 wrote to memory of 3280	2932	JaffaCakes118_e3e50e67b391094d20138fc23069801c.exe	96
PID 3280 wrote to memory of 1312	3280	cmd.exe	100
PID 3280 wrote to memory of 1312	3280	cmd.exe	100
PID 3280 wrote to memory of 1312	3280	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e3e50e67b391094d20138fc23069801c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e3e50e67b391094d20138fc23069801c.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2932 -s 744
  2⤵
  - Program crash
  PID:1160
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2932 -s 792
  2⤵
  - Program crash
  PID:1488
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2932 -s 928
  2⤵
  - Program crash
  PID:3696
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2932 -s 936
  2⤵
  - Program crash
  PID:1144
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2932 -s 956
  2⤵
  - Program crash
  PID:1716
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2932 -s 936
  2⤵
  - Program crash
  PID:1012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "JaffaCakes118_e3e50e67b391094d20138fc23069801c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e3e50e67b391094d20138fc23069801c.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3280
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "JaffaCakes118_e3e50e67b391094d20138fc23069801c.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1312
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2932 -s 1104
  2⤵
  - Program crash
  PID:3860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2932 -ip 2932
1⤵
PID:1084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2932 -ip 2932
1⤵
PID:4536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2932 -ip 2932
1⤵
PID:3228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2932 -ip 2932
1⤵
PID:2132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2932 -ip 2932
1⤵
PID:3612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2932 -ip 2932
1⤵
PID:2580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2932 -ip 2932
1⤵
PID:4648

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/2932-2-0x0000000000D40000-0x0000000000D89000-memory.dmp

Filesize
292KB

Download
memory/2932-1-0x0000000000940000-0x0000000000A40000-memory.dmp

Filesize
1024KB

Download
memory/2932-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2932-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2932-5-0x0000000000D40000-0x0000000000D89000-memory.dmp

Filesize
292KB

Download
memory/2932-4-0x0000000000400000-0x000000000089E000-memory.dmp

Filesize
4.6MB

Download

Analysis

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