gcleaner | ec14337b3da817bee3d06a4ad266b382d849d633251f2a19894a40c471f8807d

General

Target

ec14337b3da817bee3d06a4ad266b382d849d633251f2a19894a40c471f8807d.exe
Size

285KB
MD5

22d1f155cc1928ab851963fa83f63b15
SHA1

fb5b1fcb310081ed4e897c768f1bd9297d1f399f
SHA256

ec14337b3da817bee3d06a4ad266b382d849d633251f2a19894a40c471f8807d
SHA512

9c88bcb7484ee0d4c9be437520448b1b92b84acff15ecd67714272cf13d08dcb61d0edb7e0db0460246af30fec00055dc0cfd0b93f31ab78080b7c9d215f3e0d
SSDEEP

6144:JbDPUm+EJ+jzg6aqkqtc1OocTn8yzP3duQTdJrZ:JfOEJ+j05qgJyP3dhdJrZ

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

System Information Discovery
T1082

Program crash 8 IoCs

pid	pid_target	Process	procid_target
3820	2300	WerFault.exe	79
2964	2300	WerFault.exe	79
4204	2300	WerFault.exe	79
2548	2300	WerFault.exe	79
628	2300	WerFault.exe	79
1144	2300	WerFault.exe	79
4996	2300	WerFault.exe	79
4144	2300	WerFault.exe	79

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	ec14337b3da817bee3d06a4ad266b382d849d633251f2a19894a40c471f8807d.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
740	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	740	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 1668	2300	ec14337b3da817bee3d06a4ad266b382d849d633251f2a19894a40c471f8807d.exe	96
PID 2300 wrote to memory of 1668	2300	ec14337b3da817bee3d06a4ad266b382d849d633251f2a19894a40c471f8807d.exe	96
PID 2300 wrote to memory of 1668	2300	ec14337b3da817bee3d06a4ad266b382d849d633251f2a19894a40c471f8807d.exe	96
PID 1668 wrote to memory of 740	1668	cmd.exe	100
PID 1668 wrote to memory of 740	1668	cmd.exe	100
PID 1668 wrote to memory of 740	1668	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\ec14337b3da817bee3d06a4ad266b382d849d633251f2a19894a40c471f8807d.exe
"C:\Users\Admin\AppData\Local\Temp\ec14337b3da817bee3d06a4ad266b382d849d633251f2a19894a40c471f8807d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2300 -s 780
  2⤵
  - Program crash
  PID:3820
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2300 -s 812
  2⤵
  - Program crash
  PID:2964
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2300 -s 832
  2⤵
  - Program crash
  PID:4204
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2300 -s 892
  2⤵
  - Program crash
  PID:2548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2300 -s 952
  2⤵
  - Program crash
  PID:628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2300 -s 956
  2⤵
  - Program crash
  PID:1144
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2300 -s 1592
  2⤵
  - Program crash
  PID:4996
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "ec14337b3da817bee3d06a4ad266b382d849d633251f2a19894a40c471f8807d.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\ec14337b3da817bee3d06a4ad266b382d849d633251f2a19894a40c471f8807d.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1668
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "ec14337b3da817bee3d06a4ad266b382d849d633251f2a19894a40c471f8807d.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2300 -s 1660
  2⤵
  - Program crash
  PID:4144

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2300 -ip 2300
1⤵
PID:5040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2300 -ip 2300
1⤵
PID:4196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2300 -ip 2300
1⤵
PID:112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 2300 -ip 2300
1⤵
PID:3716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2300 -ip 2300
1⤵
PID:3576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2300 -ip 2300
1⤵
PID:1048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 2300 -ip 2300
1⤵
PID:2140

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2300 -ip 2300
1⤵
PID:1340

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

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\R7CDL9JE\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2300-1-0x0000000002DB0000-0x0000000002EB0000-memory.dmp

Filesize
1024KB

Download
memory/2300-2-0x00000000048C0000-0x00000000048ED000-memory.dmp

Filesize
180KB

Download
memory/2300-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2300-4-0x0000000002DB0000-0x0000000002EB0000-memory.dmp

Filesize
1024KB

Download
memory/2300-5-0x0000000000400000-0x0000000002B68000-memory.dmp

Filesize
39.4MB

Download
memory/2300-6-0x00000000048C0000-0x00000000048ED000-memory.dmp

Filesize
180KB

Download
memory/2300-12-0x0000000000400000-0x0000000002B68000-memory.dmp

Filesize
39.4MB

Download
memory/2300-21-0x0000000000400000-0x0000000002B68000-memory.dmp

Filesize
39.4MB

Download
memory/2300-23-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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