gcleaner | 4d5d9aa1237b3899214ecea06ca4db46c194cf526d71defb3d8b81cadb97697c

General

Target

4d5d9aa1237b3899214ecea06ca4db46c194cf526d71defb3d8b81cadb97697c.exe
Size

299KB
MD5

ab1e6093f0d842a726bcf5ebb044693d
SHA1

7879bf7bba3bc9bcf86e90d9bfa09a45dc6a6789
SHA256

4d5d9aa1237b3899214ecea06ca4db46c194cf526d71defb3d8b81cadb97697c
SHA512

10a7527698533022a59ab1ebeaa008171b292364da727e80242dd786ded8ff09de6cf5f0c395f8c0a97073ab5bfbda5a8189c9baf45ed9d4e28ebdbb58de2441
SSDEEP

6144:UlrLHGvicYHCATJfvoD9oD1F4mhko0eanbDiljjJIPTgsl2:UpCvirlTxoy4O903nbDCj8vl2

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

C2

45.139.105.171

85.31.46.167

107.182.129.235

171.22.30.106

Attributes

url_path
....!..../software.php

....!..../software.php

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Gcleaner family
gcleaner

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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	4d5d9aa1237b3899214ecea06ca4db46c194cf526d71defb3d8b81cadb97697c.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
264	4312	WerFault.exe	83
2896	4312	WerFault.exe	83
1160	4312	WerFault.exe	83
2816	4312	WerFault.exe	83
2260	4312	WerFault.exe	83
3608	4312	WerFault.exe	83
1464	4312	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	4d5d9aa1237b3899214ecea06ca4db46c194cf526d71defb3d8b81cadb97697c.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
4596	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4596	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4312 wrote to memory of 4328	4312	4d5d9aa1237b3899214ecea06ca4db46c194cf526d71defb3d8b81cadb97697c.exe	97
PID 4312 wrote to memory of 4328	4312	4d5d9aa1237b3899214ecea06ca4db46c194cf526d71defb3d8b81cadb97697c.exe	97
PID 4312 wrote to memory of 4328	4312	4d5d9aa1237b3899214ecea06ca4db46c194cf526d71defb3d8b81cadb97697c.exe	97
PID 4328 wrote to memory of 4596	4328	cmd.exe	100
PID 4328 wrote to memory of 4596	4328	cmd.exe	100
PID 4328 wrote to memory of 4596	4328	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\4d5d9aa1237b3899214ecea06ca4db46c194cf526d71defb3d8b81cadb97697c.exe
"C:\Users\Admin\AppData\Local\Temp\4d5d9aa1237b3899214ecea06ca4db46c194cf526d71defb3d8b81cadb97697c.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4312
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4312 -s 688
  2⤵
  - Program crash
  PID:264
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4312 -s 780
  2⤵
  - Program crash
  PID:2896
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4312 -s 916
  2⤵
  - Program crash
  PID:1160
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4312 -s 728
  2⤵
  - Program crash
  PID:2816
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4312 -s 728
  2⤵
  - Program crash
  PID:2260
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4312 -s 940
  2⤵
  - Program crash
  PID:3608
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "4d5d9aa1237b3899214ecea06ca4db46c194cf526d71defb3d8b81cadb97697c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\4d5d9aa1237b3899214ecea06ca4db46c194cf526d71defb3d8b81cadb97697c.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4328
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "4d5d9aa1237b3899214ecea06ca4db46c194cf526d71defb3d8b81cadb97697c.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4596
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4312 -s 1036
  2⤵
  - Program crash
  PID:1464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4312 -ip 4312
1⤵
PID:3544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4312 -ip 4312
1⤵
PID:1920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4312 -ip 4312
1⤵
PID:3124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4312 -ip 4312
1⤵
PID:216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4312 -ip 4312
1⤵
PID:2868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4312 -ip 4312
1⤵
PID:5060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4312 -ip 4312
1⤵
PID:3568

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/4312-1-0x0000000002DE0000-0x0000000002EE0000-memory.dmp

Filesize
1024KB

Download
memory/4312-2-0x0000000004880000-0x00000000048C0000-memory.dmp

Filesize
256KB

Download
memory/4312-3-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4312-6-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4312-5-0x0000000004880000-0x00000000048C0000-memory.dmp

Filesize
256KB

Download
memory/4312-4-0x0000000000400000-0x0000000002C38000-memory.dmp

Filesize
40.2MB

Download

Analysis

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