gcleaner | 54cd6c5e4f78a8ed9b689dd6e07b5608611dc45773e421283f1cb54476069620

General

Target

54cd6c5e4f78a8ed9b689dd6e07b5608611dc45773e421283f1cb54476069620.exe
Size

271KB
MD5

2591a95d9194a08ad573d8e8e7241bf8
SHA1

07678134292beb5a6fe87ebcf24c031f4d16aa77
SHA256

54cd6c5e4f78a8ed9b689dd6e07b5608611dc45773e421283f1cb54476069620
SHA512

35535f4594f6a8ff8e47618f9bb1a8a7f7290c61d60e3e5935c1ac0a5d7fe9cb9541049ac2d2d3d9dcb3b45d5641735a222f5bb307c3d2b7395d5f224863e19e
SSDEEP

3072:wEeBWsLMcdt1+K3oseHfIrjmOOY7VQIKf/weKXmsMeOxGzg95rvqJzxB9HPuGP2J:pe1+2oseH+j3tVU/wh/AqpxB9vuGPDn

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

C2

80.66.75.114

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader 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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	54cd6c5e4f78a8ed9b689dd6e07b5608611dc45773e421283f1cb54476069620.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 9 IoCs

pid	pid_target	Process	procid_target
1076	4200	WerFault.exe	83
4880	4200	WerFault.exe	83
3252	4200	WerFault.exe	83
1120	4200	WerFault.exe	83
3716	4200	WerFault.exe	83
2644	4200	WerFault.exe	83
5004	4200	WerFault.exe	83
1512	4200	WerFault.exe	83
3104	4200	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	54cd6c5e4f78a8ed9b689dd6e07b5608611dc45773e421283f1cb54476069620.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
2588	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2588	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4200 wrote to memory of 2596	4200	54cd6c5e4f78a8ed9b689dd6e07b5608611dc45773e421283f1cb54476069620.exe	111
PID 4200 wrote to memory of 2596	4200	54cd6c5e4f78a8ed9b689dd6e07b5608611dc45773e421283f1cb54476069620.exe	111
PID 4200 wrote to memory of 2596	4200	54cd6c5e4f78a8ed9b689dd6e07b5608611dc45773e421283f1cb54476069620.exe	111
PID 2596 wrote to memory of 2588	2596	cmd.exe	115
PID 2596 wrote to memory of 2588	2596	cmd.exe	115
PID 2596 wrote to memory of 2588	2596	cmd.exe	115

C:\Users\Admin\AppData\Local\Temp\54cd6c5e4f78a8ed9b689dd6e07b5608611dc45773e421283f1cb54476069620.exe
"C:\Users\Admin\AppData\Local\Temp\54cd6c5e4f78a8ed9b689dd6e07b5608611dc45773e421283f1cb54476069620.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4200
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4200 -s 732
  2⤵
  - Program crash
  PID:1076
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4200 -s 732
  2⤵
  - Program crash
  PID:4880
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4200 -s 732
  2⤵
  - Program crash
  PID:3252
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4200 -s 832
  2⤵
  - Program crash
  PID:1120
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4200 -s 892
  2⤵
  - Program crash
  PID:3716
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4200 -s 980
  2⤵
  - Program crash
  PID:2644
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4200 -s 1128
  2⤵
  - Program crash
  PID:5004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4200 -s 1428
  2⤵
  - Program crash
  PID:1512
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "54cd6c5e4f78a8ed9b689dd6e07b5608611dc45773e421283f1cb54476069620.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\54cd6c5e4f78a8ed9b689dd6e07b5608611dc45773e421283f1cb54476069620.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2596
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "54cd6c5e4f78a8ed9b689dd6e07b5608611dc45773e421283f1cb54476069620.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2588
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4200 -s 1392
  2⤵
  - Program crash
  PID:3104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4200 -ip 4200
1⤵
PID:232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4200 -ip 4200
1⤵
PID:3772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4200 -ip 4200
1⤵
PID:5116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4200 -ip 4200
1⤵
PID:1048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4200 -ip 4200
1⤵
PID:1032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4200 -ip 4200
1⤵
PID:5064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4200 -ip 4200
1⤵
PID:4948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4200 -ip 4200
1⤵
PID:3260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4200 -ip 4200
1⤵
PID:3836

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

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\HA5FC889\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4200-1-0x0000000002D30000-0x0000000002E30000-memory.dmp

Filesize
1024KB

Download
memory/4200-2-0x0000000002CF0000-0x0000000002D1D000-memory.dmp

Filesize
180KB

Download
memory/4200-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4200-8-0x0000000002D30000-0x0000000002E30000-memory.dmp

Filesize
1024KB

Download
memory/4200-11-0x0000000002CF0000-0x0000000002D1D000-memory.dmp

Filesize
180KB

Download
memory/4200-10-0x0000000000400000-0x0000000002B49000-memory.dmp

Filesize
39.3MB

Download
memory/4200-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4200-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4200-21-0x0000000000400000-0x0000000002B49000-memory.dmp

Filesize
39.3MB

Download

Analysis

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