gcleaner | 005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c

General

Target

005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe
Size

397KB
MD5

43eb89c4242fd677c68602bac332e5ed
SHA1

cc364645bb1e2c79888d4fad5c9cf58d3b85d30a
SHA256

005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c
SHA512

e8bf1f44f3934c2f1090fcaf5551f5c6d7dbeba147b3f1bc02b8b7083a7c654e84ef22bfa11128941d5f1bbb85733fcf89a25fb826e70902ade34797408fe852
SSDEEP

6144:wjWL3Jk8suk3Gaiv+UNrbYVrv7caQ7wuPIEwwy57ApV:widkwk3GaimAwG7m7

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90

5.42.64.56

185.172.128.69

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

Processes:

005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation	005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe

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

System Information Discovery
T1082

Program crash 10 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
184	1736	WerFault.exe	005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe
3372	1736	WerFault.exe	005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe
2320	1736	WerFault.exe	005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe
2740	1736	WerFault.exe	005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe
4040	1736	WerFault.exe	005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe
2588	1736	WerFault.exe	005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe
3844	1736	WerFault.exe	005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe
2692	1736	WerFault.exe	005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe
2372	1736	WerFault.exe	005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe
2392	1736	WerFault.exe	005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4688 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4688 taskkill.exe

pid	process
4688	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4688	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.execmd.exe

description	pid	process	target process
PID 1736 wrote to memory of 1152	1736	005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe	cmd.exe
PID 1736 wrote to memory of 1152	1736	005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe	cmd.exe
PID 1736 wrote to memory of 1152	1736	005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe	cmd.exe
PID 1152 wrote to memory of 4688	1152	cmd.exe	taskkill.exe
PID 1152 wrote to memory of 4688	1152	cmd.exe	taskkill.exe
PID 1152 wrote to memory of 4688	1152	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe
"C:\Users\Admin\AppData\Local\Temp\005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1736 -s 452
  2⤵
  - Program crash
  PID:184
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1736 -s 764
  2⤵
  - Program crash
  PID:3372
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1736 -s 772
  2⤵
  - Program crash
  PID:2320
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1736 -s 772
  2⤵
  - Program crash
  PID:2740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1736 -s 868
  2⤵
  - Program crash
  PID:4040
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1736 -s 928
  2⤵
  - Program crash
  PID:2588
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1736 -s 1020
  2⤵
  - Program crash
  PID:3844
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1736 -s 1144
  2⤵
  - Program crash
  PID:2692
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1736 -s 1592
  2⤵
  - Program crash
  PID:2372
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1152
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "005a6c46cffbfe98866f4a8af8f53448379df78845f7b0808865b7d49292f12c.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4688
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1736 -s 1680
  2⤵
  - Program crash
  PID:2392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1736 -ip 1736
1⤵
PID:2608

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1736 -ip 1736
1⤵
PID:3924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 1736 -ip 1736
1⤵
PID:2112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1736 -ip 1736
1⤵
PID:2728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1736 -ip 1736
1⤵
PID:3584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1736 -ip 1736
1⤵
PID:4704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1736 -ip 1736
1⤵
PID:2336

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1736 -ip 1736
1⤵
PID:2488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1736 -ip 1736
1⤵
PID:1216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1736 -ip 1736
1⤵
PID:3456

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\3NQFXGDW\advdlc[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1736-2-0x00000000024F0000-0x000000000252C000-memory.dmp

Filesize
240KB

Download
memory/1736-1-0x00000000025B0000-0x00000000026B0000-memory.dmp

Filesize
1024KB

Download
memory/1736-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1736-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1736-15-0x0000000000400000-0x0000000002380000-memory.dmp

Filesize
31.5MB

Download
memory/1736-19-0x00000000025B0000-0x00000000026B0000-memory.dmp

Filesize
1024KB

Download
memory/1736-24-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1736-34-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1736-33-0x0000000000400000-0x0000000002380000-memory.dmp

Filesize
31.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads