gcleaner | 0da43f879e4207fae509199b92e90b762dadb9deb6e090a6c6845465af753a2c

General

Target

0da43f879e4207fae509199b92e90b762dadb9deb6e090a6c6845465af753a2c.exe
Size

388KB
MD5

2f5caba365df69bb9f341d089191234d
SHA1

674e5820323ece8c39d71345d182304421024b72
SHA256

0da43f879e4207fae509199b92e90b762dadb9deb6e090a6c6845465af753a2c
SHA512

45e4f737c6a206bb6e53f18ab8eab5edab6e95d89946119305ccff2faef0ea9e45ab124a018343160d239cf11ea5dd75d65c8f8ced3da42699f55f97bf32b013
SSDEEP

6144:DynO2dYn6tT+xsHdzSV9110IDB7hgSCaeIif:DKFC6tT+6Hd9IDBNgX6

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	0da43f879e4207fae509199b92e90b762dadb9deb6e090a6c6845465af753a2c.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
2400	5076	WerFault.exe	82
4496	5076	WerFault.exe	82
4876	5076	WerFault.exe	82
1036	5076	WerFault.exe	82
4700	5076	WerFault.exe	82
2776	5076	WerFault.exe	82
2420	5076	WerFault.exe	82
1468	5076	WerFault.exe	82
4116	5076	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	0da43f879e4207fae509199b92e90b762dadb9deb6e090a6c6845465af753a2c.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
4396	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4396	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5076 wrote to memory of 4044	5076	0da43f879e4207fae509199b92e90b762dadb9deb6e090a6c6845465af753a2c.exe	112
PID 5076 wrote to memory of 4044	5076	0da43f879e4207fae509199b92e90b762dadb9deb6e090a6c6845465af753a2c.exe	112
PID 5076 wrote to memory of 4044	5076	0da43f879e4207fae509199b92e90b762dadb9deb6e090a6c6845465af753a2c.exe	112
PID 4044 wrote to memory of 4396	4044	cmd.exe	116
PID 4044 wrote to memory of 4396	4044	cmd.exe	116
PID 4044 wrote to memory of 4396	4044	cmd.exe	116

C:\Users\Admin\AppData\Local\Temp\0da43f879e4207fae509199b92e90b762dadb9deb6e090a6c6845465af753a2c.exe
"C:\Users\Admin\AppData\Local\Temp\0da43f879e4207fae509199b92e90b762dadb9deb6e090a6c6845465af753a2c.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5076
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 452
  2⤵
  - Program crash
  PID:2400
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 764
  2⤵
  - Program crash
  PID:4496
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 804
  2⤵
  - Program crash
  PID:4876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 824
  2⤵
  - Program crash
  PID:1036
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 848
  2⤵
  - Program crash
  PID:4700
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 928
  2⤵
  - Program crash
  PID:2776
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 980
  2⤵
  - Program crash
  PID:2420
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 1620
  2⤵
  - Program crash
  PID:1468
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "0da43f879e4207fae509199b92e90b762dadb9deb6e090a6c6845465af753a2c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\0da43f879e4207fae509199b92e90b762dadb9deb6e090a6c6845465af753a2c.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4044
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "0da43f879e4207fae509199b92e90b762dadb9deb6e090a6c6845465af753a2c.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4396
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 492
  2⤵
  - Program crash
  PID:4116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 5076 -ip 5076
1⤵
PID:2580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 5076 -ip 5076
1⤵
PID:2100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 5076 -ip 5076
1⤵
PID:4688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 5076 -ip 5076
1⤵
PID:4140

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 5076 -ip 5076
1⤵
PID:4372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 5076 -ip 5076
1⤵
PID:2908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 5076 -ip 5076
1⤵
PID:3676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 5076 -ip 5076
1⤵
PID:1428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 5076 -ip 5076
1⤵
PID:1476

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/5076-1-0x0000000002670000-0x0000000002770000-memory.dmp

Filesize
1024KB

Download
memory/5076-2-0x0000000002620000-0x000000000265B000-memory.dmp

Filesize
236KB

Download
memory/5076-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/5076-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/5076-13-0x0000000002670000-0x0000000002770000-memory.dmp

Filesize
1024KB

Download
memory/5076-16-0x0000000002620000-0x000000000265B000-memory.dmp

Filesize
236KB

Download
memory/5076-15-0x0000000000400000-0x000000000247A000-memory.dmp

Filesize
32.5MB

Download
memory/5076-17-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/5076-29-0x0000000000400000-0x000000000247A000-memory.dmp

Filesize
32.5MB

Download
memory/5076-36-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/5076-35-0x0000000000400000-0x000000000247A000-memory.dmp

Filesize
32.5MB

Download

Analysis

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