gcleaner | 2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a

General

Target

2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe
Size

270KB
MD5

3345caefd541b19aac8bf440abe799d2
SHA1

7da1a2f7e13870483be125e4aaed9ede857358cc
SHA256

2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a
SHA512

fcb6422ed1a82b85491f267ec4c323e66c7555128499583cf0154f177642ba3a3fcf5b182158cc7d09ab5337c8728c8db0ff9775e5f9b2612d92dbd4cbd8095a
SSDEEP

6144:FFNSfX3ksWx1TFyFXJMuGlUgBihDxvig8UZCEK:FSX3ksa1hyFJMVlUeix1iUZCE

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
4516	4592	WerFault.exe	80
232	4592	WerFault.exe	80
1540	4592	WerFault.exe	80
4984	4592	WerFault.exe	80
4724	4592	WerFault.exe	80
1372	4592	WerFault.exe	80
4712	4592	WerFault.exe	80
3092	4592	WerFault.exe	80

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	2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1984	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1984	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4592 wrote to memory of 4040	4592	2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe	96
PID 4592 wrote to memory of 4040	4592	2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe	96
PID 4592 wrote to memory of 4040	4592	2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe	96
PID 4040 wrote to memory of 1984	4040	cmd.exe	99
PID 4040 wrote to memory of 1984	4040	cmd.exe	99
PID 4040 wrote to memory of 1984	4040	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe
"C:\Users\Admin\AppData\Local\Temp\2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4592
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 772
  2⤵
  - Program crash
  PID:4516
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 812
  2⤵
  - Program crash
  PID:232
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 832
  2⤵
  - Program crash
  PID:1540
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 832
  2⤵
  - Program crash
  PID:4984
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 952
  2⤵
  - Program crash
  PID:4724
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 956
  2⤵
  - Program crash
  PID:1372
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 1428
  2⤵
  - Program crash
  PID:4712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4040
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "2493063430382044c50ed39315a66719d3d0a86dc5b7c6edee61747a14b5a30a.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1984
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 1536
  2⤵
  - Program crash
  PID:3092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4592 -ip 4592
1⤵
PID:2728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4592 -ip 4592
1⤵
PID:1496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4592 -ip 4592
1⤵
PID:2036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4592 -ip 4592
1⤵
PID:4176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4592 -ip 4592
1⤵
PID:124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 4592 -ip 4592
1⤵
PID:2452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 4592 -ip 4592
1⤵
PID:3568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 4592 -ip 4592
1⤵
PID:3304

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\M3DUQV5R\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4592-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/4592-2-0x0000000002160000-0x000000000218D000-memory.dmp

Filesize
180KB

Download
memory/4592-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4592-8-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/4592-9-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/4592-11-0x0000000002160000-0x000000000218D000-memory.dmp

Filesize
180KB

Download
memory/4592-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4592-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4592-21-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download

Analysis

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