gcleaner | 8ad6deb9fd771066e35d6a4806f5164a9c4df53418966715778c1d7ffc063762

General

Target

8e6e835dede4156784b26cb01339f050_JaffaCakes118.exe
Size

252KB
MD5

8e6e835dede4156784b26cb01339f050
SHA1

d0f3846526cf7ed69b67301e419f72ce8ba981fd
SHA256

8ad6deb9fd771066e35d6a4806f5164a9c4df53418966715778c1d7ffc063762
SHA512

05a4bda590b1d147aeb2a32b5c0c758700c585502083c003295b4ebe46927455e646b67b3570c11981441c3f90fb89e1441b72b7192755c8b8fa3efb50979516
SSDEEP

6144:pIYAQk0weX2qSCpwv3+Ag/DomARu+Vd9Unv:CY3k2X2qJpC3PoX+VP

Score

10^/10

gcleaner onlylogger discovery loader

Malware Config

Extracted

Family

gcleaner

C2

gcc-partners.in

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
OnlyLogger
A tiny loader that uses IPLogger to get its payload.
loader onlylogger

OnlyLogger payload 5 IoCs

resource	yara_rule
behavioral2/memory/3112-2-0x00000000009A0000-0x00000000009EC000-memory.dmp	family_onlylogger
behavioral2/memory/3112-3-0x0000000000400000-0x000000000044F000-memory.dmp	family_onlylogger
behavioral2/memory/3112-4-0x0000000000400000-0x00000000004EA000-memory.dmp	family_onlylogger
behavioral2/memory/3112-6-0x0000000000400000-0x000000000044F000-memory.dmp	family_onlylogger
behavioral2/memory/3112-5-0x00000000009A0000-0x00000000009EC000-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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	8e6e835dede4156784b26cb01339f050_JaffaCakes118.exe

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

System Information Discovery
T1082

Program crash 9 IoCs

pid	pid_target	Process	procid_target
3484	3112	WerFault.exe	83
3700	3112	WerFault.exe	83
1720	3112	WerFault.exe	83
4976	3112	WerFault.exe	83
3460	3112	WerFault.exe	83
116	3112	WerFault.exe	83
2580	3112	WerFault.exe	83
4968	3112	WerFault.exe	83
1616	3112	WerFault.exe	83

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	8e6e835dede4156784b26cb01339f050_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

pid	Process
2024	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2024	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3112 wrote to memory of 772	3112	8e6e835dede4156784b26cb01339f050_JaffaCakes118.exe	109
PID 3112 wrote to memory of 772	3112	8e6e835dede4156784b26cb01339f050_JaffaCakes118.exe	109
PID 3112 wrote to memory of 772	3112	8e6e835dede4156784b26cb01339f050_JaffaCakes118.exe	109
PID 772 wrote to memory of 2024	772	cmd.exe	113
PID 772 wrote to memory of 2024	772	cmd.exe	113
PID 772 wrote to memory of 2024	772	cmd.exe	113

C:\Users\Admin\AppData\Local\Temp\8e6e835dede4156784b26cb01339f050_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8e6e835dede4156784b26cb01339f050_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3112
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3112 -s 612
  2⤵
  - Program crash
  PID:3484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3112 -s 632
  2⤵
  - Program crash
  PID:3700
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3112 -s 740
  2⤵
  - Program crash
  PID:1720
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3112 -s 760
  2⤵
  - Program crash
  PID:4976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3112 -s 776
  2⤵
  - Program crash
  PID:3460
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3112 -s 1088
  2⤵
  - Program crash
  PID:116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3112 -s 1192
  2⤵
  - Program crash
  PID:2580
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3112 -s 1224
  2⤵
  - Program crash
  PID:4968
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "8e6e835dede4156784b26cb01339f050_JaffaCakes118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\8e6e835dede4156784b26cb01339f050_JaffaCakes118.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:772
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "8e6e835dede4156784b26cb01339f050_JaffaCakes118.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2024
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3112 -s 1268
  2⤵
  - Program crash
  PID:1616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3112 -ip 3112
1⤵
PID:4056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3112 -ip 3112
1⤵
PID:3716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3112 -ip 3112
1⤵
PID:1292

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3112 -ip 3112
1⤵
PID:4332

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3112 -ip 3112
1⤵
PID:2540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 3112 -ip 3112
1⤵
PID:3344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3112 -ip 3112
1⤵
PID:5084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3112 -ip 3112
1⤵
PID:1352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3112 -ip 3112
1⤵
PID:1544

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/3112-1-0x0000000000710000-0x0000000000810000-memory.dmp

Filesize
1024KB

Download
memory/3112-2-0x00000000009A0000-0x00000000009EC000-memory.dmp

Filesize
304KB

Download
memory/3112-3-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3112-4-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3112-6-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3112-5-0x00000000009A0000-0x00000000009EC000-memory.dmp

Filesize
304KB

Download

Analysis

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