gcleaner | 0ae16b8884f5fe300e1f2a83e2803707e13237cadc27c2e0767581ee939e4b93

General

Target

0ae16b8884f5fe300e1f2a83e2803707e13237cadc27c2e0767581ee939e4b93N.exe
Size

370KB
MD5

c4b48605c56217105e784a22fa2ce930
SHA1

ae0136a463272f6c55355cd0fefb9f055f764bd3
SHA256

0ae16b8884f5fe300e1f2a83e2803707e13237cadc27c2e0767581ee939e4b93
SHA512

d380245bfd74d368b5d79ccf244802f8eb0ebeb701a682600abb4e12ac8e3e301b259252ba9d14c21349ec6c0e56481b8b1be75bf0f5ce7a979cda657144eca9
SSDEEP

6144:WXjgZtaABI2ZLkfVyx5B+0H9iPVVnGIq+ZriCGYgwPtJgrHDCgTW:yGa0I2xwQP+0diNVnGd+ZcVw1JujCw

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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	0ae16b8884f5fe300e1f2a83e2803707e13237cadc27c2e0767581ee939e4b93N.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
4672	4888	WerFault.exe	81
2212	4888	WerFault.exe	81
3968	4888	WerFault.exe	81
4184	4888	WerFault.exe	81
4852	4888	WerFault.exe	81
5012	4888	WerFault.exe	81
4592	4888	WerFault.exe	81
640	4888	WerFault.exe	81
1692	4888	WerFault.exe	81

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	0ae16b8884f5fe300e1f2a83e2803707e13237cadc27c2e0767581ee939e4b93N.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
1460	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1460	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4888 wrote to memory of 2736	4888	0ae16b8884f5fe300e1f2a83e2803707e13237cadc27c2e0767581ee939e4b93N.exe	106
PID 4888 wrote to memory of 2736	4888	0ae16b8884f5fe300e1f2a83e2803707e13237cadc27c2e0767581ee939e4b93N.exe	106
PID 4888 wrote to memory of 2736	4888	0ae16b8884f5fe300e1f2a83e2803707e13237cadc27c2e0767581ee939e4b93N.exe	106
PID 2736 wrote to memory of 1460	2736	cmd.exe	110
PID 2736 wrote to memory of 1460	2736	cmd.exe	110
PID 2736 wrote to memory of 1460	2736	cmd.exe	110

C:\Users\Admin\AppData\Local\Temp\0ae16b8884f5fe300e1f2a83e2803707e13237cadc27c2e0767581ee939e4b93N.exe
"C:\Users\Admin\AppData\Local\Temp\0ae16b8884f5fe300e1f2a83e2803707e13237cadc27c2e0767581ee939e4b93N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4888
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 744
  2⤵
  - Program crash
  PID:4672
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 752
  2⤵
  - Program crash
  PID:2212
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 800
  2⤵
  - Program crash
  PID:3968
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 772
  2⤵
  - Program crash
  PID:4184
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 904
  2⤵
  - Program crash
  PID:4852
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 980
  2⤵
  - Program crash
  PID:5012
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 992
  2⤵
  - Program crash
  PID:4592
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 1256
  2⤵
  - Program crash
  PID:640
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "0ae16b8884f5fe300e1f2a83e2803707e13237cadc27c2e0767581ee939e4b93N.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\0ae16b8884f5fe300e1f2a83e2803707e13237cadc27c2e0767581ee939e4b93N.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2736
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "0ae16b8884f5fe300e1f2a83e2803707e13237cadc27c2e0767581ee939e4b93N.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1460
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 1396
  2⤵
  - Program crash
  PID:1692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4888 -ip 4888
1⤵
PID:1112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4888 -ip 4888
1⤵
PID:1248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4888 -ip 4888
1⤵
PID:3288

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4888 -ip 4888
1⤵
PID:3284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4888 -ip 4888
1⤵
PID:4372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4888 -ip 4888
1⤵
PID:3128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4888 -ip 4888
1⤵
PID:4492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 4888 -ip 4888
1⤵
PID:3484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 612 -p 4888 -ip 4888
1⤵
PID:2040

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8M42AOWL\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4888-1-0x00000000024A0000-0x00000000025A0000-memory.dmp

Filesize
1024KB

Download
memory/4888-2-0x00000000041C0000-0x00000000041ED000-memory.dmp

Filesize
180KB

Download
memory/4888-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4888-8-0x00000000024A0000-0x00000000025A0000-memory.dmp

Filesize
1024KB

Download
memory/4888-10-0x00000000041C0000-0x00000000041ED000-memory.dmp

Filesize
180KB

Download
memory/4888-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4888-11-0x0000000000400000-0x0000000002474000-memory.dmp

Filesize
32.5MB

Download
memory/4888-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4888-21-0x0000000000400000-0x0000000002474000-memory.dmp

Filesize
32.5MB

Download

Analysis

Sharing