gcleaner | a10dea1a440b70d5f62ce3cc1f2dbe665c9e2a8b6293a692946e62b522829124

General

Target

fd10236f59e0f351586cfee4f6c44fe0_JaffaCakes118.exe
Size

440KB
MD5

fd10236f59e0f351586cfee4f6c44fe0
SHA1

549703710fe73fdacb48c958ca2d5979d160a9d6
SHA256

a10dea1a440b70d5f62ce3cc1f2dbe665c9e2a8b6293a692946e62b522829124
SHA512

1f0630b97b69d9342df5ef41c6af87640b9fd9545caaf67f70565bac2f6e94e772cc53e1e98dc10057af860d1539c1ac676417c99ffcf46c40ab3428df6dbb88
SSDEEP

6144:RmhQFSEeQ44ZfZUhzwP3v9GPiEtQ5Bak4gSP0srdKcDVcnbY1TWMqfotU:shQavMUhzwP3vxCQ6H/ldf+bYNWTl

Score

10^/10

gcleaner onlylogger vidar loader stealer

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
OnlyLogger
A tiny loader that uses IPLogger to get its payload.
loader onlylogger
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

OnlyLogger payload 4 IoCs

resource	yara_rule
behavioral2/memory/3984-2-0x0000000002EA0000-0x0000000002EE9000-memory.dmp	family_onlylogger
behavioral2/memory/3984-3-0x0000000000400000-0x0000000002DC5000-memory.dmp	family_onlylogger
behavioral2/memory/3984-4-0x0000000000400000-0x0000000002DC5000-memory.dmp	family_onlylogger
behavioral2/memory/3984-5-0x0000000002EA0000-0x0000000002EE9000-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-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	fd10236f59e0f351586cfee4f6c44fe0_JaffaCakes118.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
4152	3984	WerFault.exe	84
708	3984	WerFault.exe	84
1852	3984	WerFault.exe	84
752	3984	WerFault.exe	84
4676	3984	WerFault.exe	84
1236	3984	WerFault.exe	84
1148	3984	WerFault.exe	84

Kills process with taskkill 1 IoCs

evasion

pid	Process
2172	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2172	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3984 wrote to memory of 4276	3984	fd10236f59e0f351586cfee4f6c44fe0_JaffaCakes118.exe	101
PID 3984 wrote to memory of 4276	3984	fd10236f59e0f351586cfee4f6c44fe0_JaffaCakes118.exe	101
PID 3984 wrote to memory of 4276	3984	fd10236f59e0f351586cfee4f6c44fe0_JaffaCakes118.exe	101
PID 4276 wrote to memory of 2172	4276	cmd.exe	105
PID 4276 wrote to memory of 2172	4276	cmd.exe	105
PID 4276 wrote to memory of 2172	4276	cmd.exe	105

C:\Users\Admin\AppData\Local\Temp\fd10236f59e0f351586cfee4f6c44fe0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fd10236f59e0f351586cfee4f6c44fe0_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3984
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 744
  2⤵
  - Program crash
  PID:4152
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 688
  2⤵
  - Program crash
  PID:708
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 720
  2⤵
  - Program crash
  PID:1852
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 936
  2⤵
  - Program crash
  PID:752
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 932
  2⤵
  - Program crash
  PID:4676
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 948
  2⤵
  - Program crash
  PID:1236
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "fd10236f59e0f351586cfee4f6c44fe0_JaffaCakes118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\fd10236f59e0f351586cfee4f6c44fe0_JaffaCakes118.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4276
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "fd10236f59e0f351586cfee4f6c44fe0_JaffaCakes118.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2172
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 1104
  2⤵
  - Program crash
  PID:1148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3984 -ip 3984
1⤵
PID:4800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3984 -ip 3984
1⤵
PID:4816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3984 -ip 3984
1⤵
PID:2520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3984 -ip 3984
1⤵
PID:3240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3984 -ip 3984
1⤵
PID:3768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3984 -ip 3984
1⤵
PID:2044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 3984 -ip 3984
1⤵
PID:1712

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3984-1-0x0000000002F40000-0x0000000003040000-memory.dmp

Filesize
1024KB

Download
memory/3984-2-0x0000000002EA0000-0x0000000002EE9000-memory.dmp

Filesize
292KB

Download
memory/3984-3-0x0000000000400000-0x0000000002DC5000-memory.dmp

Filesize
41.8MB

Download
memory/3984-4-0x0000000000400000-0x0000000002DC5000-memory.dmp

Filesize
41.8MB

Download
memory/3984-5-0x0000000002EA0000-0x0000000002EE9000-memory.dmp

Filesize
292KB

Download

Analysis

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