gcleaner | 6b057b128b1429ba9438f1101fd00d68171940538d47fe959831a8cc97165c67

General

Target

JaffaCakes118_c6bc7c434fe8b83b3de3c7ca08118cc2.exe
Size

424KB
MD5

c6bc7c434fe8b83b3de3c7ca08118cc2
SHA1

54b15634573558745e4c2d91ac6c0d6a271c1b1c
SHA256

6b057b128b1429ba9438f1101fd00d68171940538d47fe959831a8cc97165c67
SHA512

50f3f8ddfc06286acb332d7ac88ef4923d9247df889126508cb2fcee9e6b3e38a8b97822d91f4d52ed783d3282fb2da28f0c2a7882299e02d3659c8bcccefd75
SSDEEP

6144:RhICu62ubK3N4MA5YYY6YYSUsSlXkjYQAZwFjefjjEtdUsL3r:miTuisSFkjYQA2FEjEtd

Score

10^/10

gcleaner onlylogger discovery loader

Malware Config

Extracted

Family

gcleaner

C2

ggg-cl.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/3764-2-0x00000000019A0000-0x00000000019E8000-memory.dmp	family_onlylogger
behavioral2/memory/3764-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/3764-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/3764-5-0x00000000019A0000-0x00000000019E8000-memory.dmp	family_onlylogger
behavioral2/memory/3764-4-0x0000000000400000-0x00000000016DC000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_c6bc7c434fe8b83b3de3c7ca08118cc2.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
2500	3764	WerFault.exe	82
748	3764	WerFault.exe	82
4776	3764	WerFault.exe	82
4492	3764	WerFault.exe	82
2436	3764	WerFault.exe	82
2456	3764	WerFault.exe	82
2216	3764	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_c6bc7c434fe8b83b3de3c7ca08118cc2.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
5096	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5096	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3764 wrote to memory of 3724	3764	JaffaCakes118_c6bc7c434fe8b83b3de3c7ca08118cc2.exe	98
PID 3764 wrote to memory of 3724	3764	JaffaCakes118_c6bc7c434fe8b83b3de3c7ca08118cc2.exe	98
PID 3764 wrote to memory of 3724	3764	JaffaCakes118_c6bc7c434fe8b83b3de3c7ca08118cc2.exe	98
PID 3724 wrote to memory of 5096	3724	cmd.exe	102
PID 3724 wrote to memory of 5096	3724	cmd.exe	102
PID 3724 wrote to memory of 5096	3724	cmd.exe	102

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c6bc7c434fe8b83b3de3c7ca08118cc2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c6bc7c434fe8b83b3de3c7ca08118cc2.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3764
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 688
  2⤵
  - Program crash
  PID:2500
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 792
  2⤵
  - Program crash
  PID:748
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 800
  2⤵
  - Program crash
  PID:4776
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 728
  2⤵
  - Program crash
  PID:4492
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 920
  2⤵
  - Program crash
  PID:2436
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 948
  2⤵
  - Program crash
  PID:2456
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "JaffaCakes118_c6bc7c434fe8b83b3de3c7ca08118cc2.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c6bc7c434fe8b83b3de3c7ca08118cc2.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3724
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "JaffaCakes118_c6bc7c434fe8b83b3de3c7ca08118cc2.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:5096
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 732
  2⤵
  - Program crash
  PID:2216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 3764 -ip 3764
1⤵
PID:2660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3764 -ip 3764
1⤵
PID:340

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3764 -ip 3764
1⤵
PID:1872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3764 -ip 3764
1⤵
PID:844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3764 -ip 3764
1⤵
PID:4360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3764 -ip 3764
1⤵
PID:2612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3764 -ip 3764
1⤵
PID:4048

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/3764-1-0x0000000001A70000-0x0000000001B70000-memory.dmp

Filesize
1024KB

Download
memory/3764-2-0x00000000019A0000-0x00000000019E8000-memory.dmp

Filesize
288KB

Download
memory/3764-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3764-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3764-5-0x00000000019A0000-0x00000000019E8000-memory.dmp

Filesize
288KB

Download
memory/3764-4-0x0000000000400000-0x00000000016DC000-memory.dmp

Filesize
18.9MB

Download

Analysis

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