gcleaner | 9882ed7ffa099d237a516d29f93cbbb9a88fb451d7bb45ff469721aac04cd213

General

Target

9882ed7ffa099d237a516d29f93cbbb9a88fb451d7bb45ff469721aac04cd213.exe
Size

315KB
MD5

e496b2bc071d4df882ee652afa8dbc51
SHA1

a7cf3d1bd6a7e7f3abe20c2936365bf12dba7481
SHA256

9882ed7ffa099d237a516d29f93cbbb9a88fb451d7bb45ff469721aac04cd213
SHA512

512bcdb4a7eb94d76e3e92850c684506b9761599c5383bc2a07d7e21ce1b6834b7e61a3b10a09ee29028cc6f82da97b5e575de1cb6a8f90d8d1d2af1f9613319
SSDEEP

6144:dRYFYWDZ4cdgIkmO4NXfz+PuQTdJJOxq:dkYWDZ4cLkmOSXbShdJJOxq

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

C2

80.66.75.114

45.91.200.135

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Downloads MZ/PE file

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	9882ed7ffa099d237a516d29f93cbbb9a88fb451d7bb45ff469721aac04cd213.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
2844	1060	WerFault.exe	82
4960	1060	WerFault.exe	82
60	1060	WerFault.exe	82
4148	1060	WerFault.exe	82
1012	1060	WerFault.exe	82
2232	1060	WerFault.exe	82
1476	1060	WerFault.exe	82
4364	1060	WerFault.exe	82
4352	1060	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	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9882ed7ffa099d237a516d29f93cbbb9a88fb451d7bb45ff469721aac04cd213.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
5108	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5108	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1060 wrote to memory of 1592	1060	9882ed7ffa099d237a516d29f93cbbb9a88fb451d7bb45ff469721aac04cd213.exe	113
PID 1060 wrote to memory of 1592	1060	9882ed7ffa099d237a516d29f93cbbb9a88fb451d7bb45ff469721aac04cd213.exe	113
PID 1060 wrote to memory of 1592	1060	9882ed7ffa099d237a516d29f93cbbb9a88fb451d7bb45ff469721aac04cd213.exe	113
PID 1592 wrote to memory of 5108	1592	cmd.exe	117
PID 1592 wrote to memory of 5108	1592	cmd.exe	117
PID 1592 wrote to memory of 5108	1592	cmd.exe	117

C:\Users\Admin\AppData\Local\Temp\9882ed7ffa099d237a516d29f93cbbb9a88fb451d7bb45ff469721aac04cd213.exe
"C:\Users\Admin\AppData\Local\Temp\9882ed7ffa099d237a516d29f93cbbb9a88fb451d7bb45ff469721aac04cd213.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1060
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1060 -s 440
  2⤵
  - Program crash
  PID:2844
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1060 -s 756
  2⤵
  - Program crash
  PID:4960
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1060 -s 784
  2⤵
  - Program crash
  PID:60
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1060 -s 756
  2⤵
  - Program crash
  PID:4148
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1060 -s 868
  2⤵
  - Program crash
  PID:1012
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1060 -s 928
  2⤵
  - Program crash
  PID:2232
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1060 -s 1004
  2⤵
  - Program crash
  PID:1476
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1060 -s 1688
  2⤵
  - Program crash
  PID:4364
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "9882ed7ffa099d237a516d29f93cbbb9a88fb451d7bb45ff469721aac04cd213.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\9882ed7ffa099d237a516d29f93cbbb9a88fb451d7bb45ff469721aac04cd213.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1592
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "9882ed7ffa099d237a516d29f93cbbb9a88fb451d7bb45ff469721aac04cd213.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:5108
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1060 -s 492
  2⤵
  - Program crash
  PID:4352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1060 -ip 1060
1⤵
PID:2108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1060 -ip 1060
1⤵
PID:4996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 1060 -ip 1060
1⤵
PID:2392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1060 -ip 1060
1⤵
PID:5000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1060 -ip 1060
1⤵
PID:2740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 1060 -ip 1060
1⤵
PID:2264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1060 -ip 1060
1⤵
PID:2700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1060 -ip 1060
1⤵
PID:3688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1060 -ip 1060
1⤵
PID:4276

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\68XY2BI1\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1060-1-0x0000000002D80000-0x0000000002E80000-memory.dmp

Filesize
1024KB

Download
memory/1060-2-0x0000000002D10000-0x0000000002D4B000-memory.dmp

Filesize
236KB

Download
memory/1060-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1060-7-0x0000000002D80000-0x0000000002E80000-memory.dmp

Filesize
1024KB

Download
memory/1060-8-0x0000000000400000-0x0000000002B6F000-memory.dmp

Filesize
39.4MB

Download
memory/1060-9-0x0000000002D10000-0x0000000002D4B000-memory.dmp

Filesize
236KB

Download
memory/1060-10-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1060-12-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1060-28-0x0000000000400000-0x0000000002B6F000-memory.dmp

Filesize
39.4MB

Download
memory/1060-37-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1060-36-0x0000000000400000-0x0000000002B6F000-memory.dmp

Filesize
39.4MB

Download

Analysis

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