gcleaner | 104b243e6d357c53fce21ccdf2470ea65b75911babe5bb7bf3a546dab093982e

General

Target

104b243e6d357c53fce21ccdf2470ea65b75911babe5bb7bf3a546dab093982eN.exe
Size

299KB
MD5

54087ff4efa0337a92411edfd219f270
SHA1

463c1b9673b3acc3b8ed899d3cdf0cf820955e27
SHA256

104b243e6d357c53fce21ccdf2470ea65b75911babe5bb7bf3a546dab093982e
SHA512

dcc18c5722a2fdd55859373cc6e0c0c3825ef43a803c606fd349e6121578a8e5ad55a0a0c099ed7672f29cb34227523ca690a37a296202d5e625f8e52f0aa551
SSDEEP

6144:UlrLHGvicYHCATJfvoD9oD1F4mhko0eanbDiljjJIPTgsl:UpCvirlTxoy4O903nbDCj8vl

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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	104b243e6d357c53fce21ccdf2470ea65b75911babe5bb7bf3a546dab093982eN.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
3404	4588	WerFault.exe	82
452	4588	WerFault.exe	82
4160	4588	WerFault.exe	82
4652	4588	WerFault.exe	82
1720	4588	WerFault.exe	82
2628	4588	WerFault.exe	82
2448	4588	WerFault.exe	82

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	104b243e6d357c53fce21ccdf2470ea65b75911babe5bb7bf3a546dab093982eN.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
848	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	848	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4588 wrote to memory of 1668	4588	104b243e6d357c53fce21ccdf2470ea65b75911babe5bb7bf3a546dab093982eN.exe	96
PID 4588 wrote to memory of 1668	4588	104b243e6d357c53fce21ccdf2470ea65b75911babe5bb7bf3a546dab093982eN.exe	96
PID 4588 wrote to memory of 1668	4588	104b243e6d357c53fce21ccdf2470ea65b75911babe5bb7bf3a546dab093982eN.exe	96
PID 1668 wrote to memory of 848	1668	cmd.exe	99
PID 1668 wrote to memory of 848	1668	cmd.exe	99
PID 1668 wrote to memory of 848	1668	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\104b243e6d357c53fce21ccdf2470ea65b75911babe5bb7bf3a546dab093982eN.exe
"C:\Users\Admin\AppData\Local\Temp\104b243e6d357c53fce21ccdf2470ea65b75911babe5bb7bf3a546dab093982eN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4588
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 728
  2⤵
  - Program crash
  PID:3404
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 780
  2⤵
  - Program crash
  PID:452
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 752
  2⤵
  - Program crash
  PID:4160
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 932
  2⤵
  - Program crash
  PID:4652
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 920
  2⤵
  - Program crash
  PID:1720
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 932
  2⤵
  - Program crash
  PID:2628
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "104b243e6d357c53fce21ccdf2470ea65b75911babe5bb7bf3a546dab093982eN.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\104b243e6d357c53fce21ccdf2470ea65b75911babe5bb7bf3a546dab093982eN.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1668
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "104b243e6d357c53fce21ccdf2470ea65b75911babe5bb7bf3a546dab093982eN.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:848
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 1096
  2⤵
  - Program crash
  PID:2448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4588 -ip 4588
1⤵
PID:3840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4588 -ip 4588
1⤵
PID:216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4588 -ip 4588
1⤵
PID:540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4588 -ip 4588
1⤵
PID:3956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4588 -ip 4588
1⤵
PID:4048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4588 -ip 4588
1⤵
PID:2792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4588 -ip 4588
1⤵
PID:4068

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/4588-1-0x0000000002FB0000-0x00000000030B0000-memory.dmp

Filesize
1024KB

Download
memory/4588-2-0x0000000002F00000-0x0000000002F40000-memory.dmp

Filesize
256KB

Download
memory/4588-3-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4588-6-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4588-5-0x0000000002F00000-0x0000000002F40000-memory.dmp

Filesize
256KB

Download
memory/4588-4-0x0000000000400000-0x0000000002C38000-memory.dmp

Filesize
40.2MB

Download

Analysis

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