gcleaner | 7da8151aae38faa10b8f20bb012b4c3a403f0624c1c9600f42aea2f29bdcbc42

General

Target

JaffaCakes118_d354116e0df4c415e8d9de5a80ed61bc.exe
Size

248KB
MD5

d354116e0df4c415e8d9de5a80ed61bc
SHA1

4999f52569672041dfa90b48bc200e42e419c57d
SHA256

7da8151aae38faa10b8f20bb012b4c3a403f0624c1c9600f42aea2f29bdcbc42
SHA512

0341042ffd11a661bebd7a0b036201d9095924640b67e3e246de0c87fdc1191c702010a531ae67a293fd9ff2731ce055bfe8e8045308a773149dece5c627e0ed
SSDEEP

3072:bnF7ClEjclOvBeC7a7/J75PtAnyahl3Xbt+3vKimjdu0FniB0QyFO8iHWw6mP553:bThX7o/JXuyCp2vKimjUIiBSeWwPD

Score

10^/10

gcleaner onlylogger discovery loader

Malware Config

Extracted

Family

gcleaner

C2

194.145.227.161

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 6 IoCs

resource	yara_rule
behavioral2/memory/4772-2-0x0000000002260000-0x00000000022A8000-memory.dmp	family_onlylogger
behavioral2/memory/4772-3-0x0000000000400000-0x000000000044B000-memory.dmp	family_onlylogger
behavioral2/memory/4772-4-0x0000000000400000-0x00000000004C4000-memory.dmp	family_onlylogger
behavioral2/memory/4772-5-0x0000000000400000-0x00000000004C4000-memory.dmp	family_onlylogger
behavioral2/memory/4772-7-0x0000000000400000-0x000000000044B000-memory.dmp	family_onlylogger
behavioral2/memory/4772-6-0x0000000002260000-0x00000000022A8000-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_d354116e0df4c415e8d9de5a80ed61bc.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
4464	4772	WerFault.exe	84
2816	4772	WerFault.exe	84
1412	4772	WerFault.exe	84
1416	4772	WerFault.exe	84
2876	4772	WerFault.exe	84
532	4772	WerFault.exe	84
3468	4772	WerFault.exe	84

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	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d354116e0df4c415e8d9de5a80ed61bc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3968	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3968	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4772 wrote to memory of 4028	4772	JaffaCakes118_d354116e0df4c415e8d9de5a80ed61bc.exe	100
PID 4772 wrote to memory of 4028	4772	JaffaCakes118_d354116e0df4c415e8d9de5a80ed61bc.exe	100
PID 4772 wrote to memory of 4028	4772	JaffaCakes118_d354116e0df4c415e8d9de5a80ed61bc.exe	100
PID 4028 wrote to memory of 3968	4028	cmd.exe	104
PID 4028 wrote to memory of 3968	4028	cmd.exe	104
PID 4028 wrote to memory of 3968	4028	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d354116e0df4c415e8d9de5a80ed61bc.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d354116e0df4c415e8d9de5a80ed61bc.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4772
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4772 -s 688
  2⤵
  - Program crash
  PID:4464
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4772 -s 784
  2⤵
  - Program crash
  PID:2816
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4772 -s 928
  2⤵
  - Program crash
  PID:1412
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4772 -s 944
  2⤵
  - Program crash
  PID:1416
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4772 -s 780
  2⤵
  - Program crash
  PID:2876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4772 -s 728
  2⤵
  - Program crash
  PID:532
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "JaffaCakes118_d354116e0df4c415e8d9de5a80ed61bc.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d354116e0df4c415e8d9de5a80ed61bc.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4028
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "JaffaCakes118_d354116e0df4c415e8d9de5a80ed61bc.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3968
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4772 -s 976
  2⤵
  - Program crash
  PID:3468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4772 -ip 4772
1⤵
PID:2088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4772 -ip 4772
1⤵
PID:756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4772 -ip 4772
1⤵
PID:1780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4772 -ip 4772
1⤵
PID:5004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4772 -ip 4772
1⤵
PID:5060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4772 -ip 4772
1⤵
PID:3444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4772 -ip 4772
1⤵
PID:4820

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/4772-1-0x0000000000580000-0x0000000000680000-memory.dmp

Filesize
1024KB

Download
memory/4772-2-0x0000000002260000-0x00000000022A8000-memory.dmp

Filesize
288KB

Download
memory/4772-3-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4772-4-0x0000000000400000-0x00000000004C4000-memory.dmp

Filesize
784KB

Download
memory/4772-5-0x0000000000400000-0x00000000004C4000-memory.dmp

Filesize
784KB

Download
memory/4772-7-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4772-6-0x0000000002260000-0x00000000022A8000-memory.dmp

Filesize
288KB

Download

Analysis

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