gcleaner | 3489facc929b98316bbfd271f981f641756b64b458f7103dc1d7abd6abe8cf04

General

Target

3489facc929b98316bbfd271f981f641756b64b458f7103dc1d7abd6abe8cf04.exe
Size

432KB
MD5

0ace1ecf3758e0f430a7edc64dbb7b91
SHA1

533bbf5cedbea8300ae65b57756c9df8f7fd91a1
SHA256

3489facc929b98316bbfd271f981f641756b64b458f7103dc1d7abd6abe8cf04
SHA512

fb7dbfeabd1392feb0c54a79def2e226c094ab3481ba120ca73913afe9ccbd470642e424409e0ee2bda99cf605c2b082fd9b05804c47bb4b1ce0640b4043c8f2
SSDEEP

6144:kWVjhIkFiLd+GpZHH3VR0HQTHxrN41QxZ9Z3J0l6bMOk/VkNim+OK+l8O:kKhPFi5+kZHHn0wtNDLbFEyPb

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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	3489facc929b98316bbfd271f981f641756b64b458f7103dc1d7abd6abe8cf04.exe

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

System Information Discovery
T1082

Program crash 11 IoCs

pid	pid_target	Process	procid_target
2624	2552	WerFault.exe	82
1820	2552	WerFault.exe	82
388	2552	WerFault.exe	82
1064	2552	WerFault.exe	82
396	2552	WerFault.exe	82
3568	2552	WerFault.exe	82
2168	2552	WerFault.exe	82
1632	2552	WerFault.exe	82
2076	2552	WerFault.exe	82
4312	2552	WerFault.exe	82
2584	2552	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	3489facc929b98316bbfd271f981f641756b64b458f7103dc1d7abd6abe8cf04.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
1172	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1172	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2552 wrote to memory of 3000	2552	3489facc929b98316bbfd271f981f641756b64b458f7103dc1d7abd6abe8cf04.exe	116
PID 2552 wrote to memory of 3000	2552	3489facc929b98316bbfd271f981f641756b64b458f7103dc1d7abd6abe8cf04.exe	116
PID 2552 wrote to memory of 3000	2552	3489facc929b98316bbfd271f981f641756b64b458f7103dc1d7abd6abe8cf04.exe	116
PID 3000 wrote to memory of 1172	3000	cmd.exe	120
PID 3000 wrote to memory of 1172	3000	cmd.exe	120
PID 3000 wrote to memory of 1172	3000	cmd.exe	120

C:\Users\Admin\AppData\Local\Temp\3489facc929b98316bbfd271f981f641756b64b458f7103dc1d7abd6abe8cf04.exe
"C:\Users\Admin\AppData\Local\Temp\3489facc929b98316bbfd271f981f641756b64b458f7103dc1d7abd6abe8cf04.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2552
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2552 -s 440
  2⤵
  - Program crash
  PID:2624
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2552 -s 496
  2⤵
  - Program crash
  PID:1820
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2552 -s 748
  2⤵
  - Program crash
  PID:388
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2552 -s 748
  2⤵
  - Program crash
  PID:1064
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2552 -s 780
  2⤵
  - Program crash
  PID:396
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2552 -s 840
  2⤵
  - Program crash
  PID:3568
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2552 -s 912
  2⤵
  - Program crash
  PID:2168
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2552 -s 988
  2⤵
  - Program crash
  PID:1632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2552 -s 1072
  2⤵
  - Program crash
  PID:2076
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2552 -s 1556
  2⤵
  - Program crash
  PID:4312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "3489facc929b98316bbfd271f981f641756b64b458f7103dc1d7abd6abe8cf04.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\3489facc929b98316bbfd271f981f641756b64b458f7103dc1d7abd6abe8cf04.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3000
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "3489facc929b98316bbfd271f981f641756b64b458f7103dc1d7abd6abe8cf04.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1172
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2552 -s 1512
  2⤵
  - Program crash
  PID:2584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2552 -ip 2552
1⤵
PID:4328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 2552 -ip 2552
1⤵
PID:1444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2552 -ip 2552
1⤵
PID:1696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 2552 -ip 2552
1⤵
PID:2272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2552 -ip 2552
1⤵
PID:868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 2552 -ip 2552
1⤵
PID:228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 2552 -ip 2552
1⤵
PID:4728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2552 -ip 2552
1⤵
PID:2320

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 2552 -ip 2552
1⤵
PID:3224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 2552 -ip 2552
1⤵
PID:3088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 2552 -ip 2552
1⤵
PID:4760

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\CFIOOOZS\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2552-1-0x00000000027C0000-0x00000000028C0000-memory.dmp

Filesize
1024KB

Download
memory/2552-2-0x00000000025E0000-0x000000000261B000-memory.dmp

Filesize
236KB

Download
memory/2552-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2552-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2552-12-0x00000000027C0000-0x00000000028C0000-memory.dmp

Filesize
1024KB

Download
memory/2552-15-0x00000000025E0000-0x000000000261B000-memory.dmp

Filesize
236KB

Download
memory/2552-14-0x0000000000400000-0x0000000002485000-memory.dmp

Filesize
32.5MB

Download
memory/2552-17-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2552-36-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2552-35-0x0000000000400000-0x0000000002485000-memory.dmp

Filesize
32.5MB

Download

Analysis

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