gcleaner | 35e22e58b668778663cde3619804d4e89f3c761fadde6bb0040a70a7b7b738a6

General

Target

85594058d6aec062a3e49d27f9394cd4_JaffaCakes118.exe
Size

388KB
MD5

85594058d6aec062a3e49d27f9394cd4
SHA1

322b70c2acd7aeda7613b662500b7f221d63637a
SHA256

35e22e58b668778663cde3619804d4e89f3c761fadde6bb0040a70a7b7b738a6
SHA512

aab9ad90e1b07158cc0799e2e5ea70c26329468cd3b4775ecb17775547b962170a402791f99dd8186806f452ffc8acdb3f039e41b900fadf3072f1ab52349160
SSDEEP

6144:AJLRdSr8GEL8hf7vIhOWjouV50n4emuoTCGYmz6huKhROhxxpeTr/ekI:ER/GeIghutmlCHWzxp6L

Score

10^/10

gcleaner onlylogger discovery loader

Malware Config

Extracted

Family

gcleaner

C2

gcl-page.biz

194.145.227.161

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/392-2-0x0000000000470000-0x00000000004B8000-memory.dmp	family_onlylogger
behavioral2/memory/392-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral2/memory/392-4-0x0000000000400000-0x000000000046E000-memory.dmp	family_onlylogger
behavioral2/memory/392-5-0x0000000000470000-0x00000000004B8000-memory.dmp	family_onlylogger
behavioral2/memory/392-6-0x0000000000400000-0x000000000044C000-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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	85594058d6aec062a3e49d27f9394cd4_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
2904	392	WerFault.exe	83
2244	392	WerFault.exe	83
2408	392	WerFault.exe	83
1284	392	WerFault.exe	83
3588	392	WerFault.exe	83
3824	392	WerFault.exe	83
1044	392	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	85594058d6aec062a3e49d27f9394cd4_JaffaCakes118.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2844	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2844	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 392 wrote to memory of 332	392	85594058d6aec062a3e49d27f9394cd4_JaffaCakes118.exe	105
PID 392 wrote to memory of 332	392	85594058d6aec062a3e49d27f9394cd4_JaffaCakes118.exe	105
PID 392 wrote to memory of 332	392	85594058d6aec062a3e49d27f9394cd4_JaffaCakes118.exe	105
PID 332 wrote to memory of 2844	332	cmd.exe	109
PID 332 wrote to memory of 2844	332	cmd.exe	109
PID 332 wrote to memory of 2844	332	cmd.exe	109

C:\Users\Admin\AppData\Local\Temp\85594058d6aec062a3e49d27f9394cd4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\85594058d6aec062a3e49d27f9394cd4_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 688
  2⤵
  - Program crash
  PID:2904
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 784
  2⤵
  - Program crash
  PID:2244
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 928
  2⤵
  - Program crash
  PID:2408
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 728
  2⤵
  - Program crash
  PID:1284
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 796
  2⤵
  - Program crash
  PID:3588
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 956
  2⤵
  - Program crash
  PID:3824
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "85594058d6aec062a3e49d27f9394cd4_JaffaCakes118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\85594058d6aec062a3e49d27f9394cd4_JaffaCakes118.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:332
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "85594058d6aec062a3e49d27f9394cd4_JaffaCakes118.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2844
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 748
  2⤵
  - Program crash
  PID:1044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 392 -ip 392
1⤵
PID:2104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 392 -ip 392
1⤵
PID:812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 392 -ip 392
1⤵
PID:1688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 392 -ip 392
1⤵
PID:2516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 392 -ip 392
1⤵
PID:4332

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 392 -ip 392
1⤵
PID:4564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 392 -ip 392
1⤵
PID:2228

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/392-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/392-2-0x0000000000470000-0x00000000004B8000-memory.dmp

Filesize
288KB

Download
memory/392-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/392-4-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/392-5-0x0000000000470000-0x00000000004B8000-memory.dmp

Filesize
288KB

Download
memory/392-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

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