gcleaner | 6c10c6befa2ed075af8e443d10715aadfb5c01e9161317584a5429a69bcd4e98

General

Target

6c10c6befa2ed075af8e443d10715aadfb5c01e9161317584a5429a69bcd4e98.exe
Size

311KB
MD5

b0d985f94baf83124702f65dd32c9a32
SHA1

a0bdf12cca957ba14a96ef7b59a033ee14f98f89
SHA256

6c10c6befa2ed075af8e443d10715aadfb5c01e9161317584a5429a69bcd4e98
SHA512

0ccf5d5e2070c79396e31e991097119b2ef46e2af43e41c407b87388b3e19a4dc4fdc974953c864e654fee17e68ec30e35f36a73711eb6748b611417b2866558
SSDEEP

6144:KIopxVqUt3EgyNXLhcQORKft7RnXdProV0:KICVqUegyNbCU7RnXdPro

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	6c10c6befa2ed075af8e443d10715aadfb5c01e9161317584a5429a69bcd4e98.exe

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

System Information Discovery
T1082

Program crash 10 IoCs

pid	pid_target	Process	procid_target
2628	3344	WerFault.exe	84
64	3344	WerFault.exe	84
1964	3344	WerFault.exe	84
4760	3344	WerFault.exe	84
5084	3344	WerFault.exe	84
2276	3344	WerFault.exe	84
4920	3344	WerFault.exe	84
4320	3344	WerFault.exe	84
796	3344	WerFault.exe	84
3744	3344	WerFault.exe	84

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	6c10c6befa2ed075af8e443d10715aadfb5c01e9161317584a5429a69bcd4e98.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
3832	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3832	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3344 wrote to memory of 524	3344	6c10c6befa2ed075af8e443d10715aadfb5c01e9161317584a5429a69bcd4e98.exe	113
PID 3344 wrote to memory of 524	3344	6c10c6befa2ed075af8e443d10715aadfb5c01e9161317584a5429a69bcd4e98.exe	113
PID 3344 wrote to memory of 524	3344	6c10c6befa2ed075af8e443d10715aadfb5c01e9161317584a5429a69bcd4e98.exe	113
PID 524 wrote to memory of 3832	524	cmd.exe	118
PID 524 wrote to memory of 3832	524	cmd.exe	118
PID 524 wrote to memory of 3832	524	cmd.exe	118

C:\Users\Admin\AppData\Local\Temp\6c10c6befa2ed075af8e443d10715aadfb5c01e9161317584a5429a69bcd4e98.exe
"C:\Users\Admin\AppData\Local\Temp\6c10c6befa2ed075af8e443d10715aadfb5c01e9161317584a5429a69bcd4e98.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3344
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 452
  2⤵
  - Program crash
  PID:2628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 764
  2⤵
  - Program crash
  PID:64
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 776
  2⤵
  - Program crash
  PID:1964
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 820
  2⤵
  - Program crash
  PID:4760
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 868
  2⤵
  - Program crash
  PID:5084
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 928
  2⤵
  - Program crash
  PID:2276
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 932
  2⤵
  - Program crash
  PID:4920
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 928
  2⤵
  - Program crash
  PID:4320
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 1572
  2⤵
  - Program crash
  PID:796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "6c10c6befa2ed075af8e443d10715aadfb5c01e9161317584a5429a69bcd4e98.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\6c10c6befa2ed075af8e443d10715aadfb5c01e9161317584a5429a69bcd4e98.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:524
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "6c10c6befa2ed075af8e443d10715aadfb5c01e9161317584a5429a69bcd4e98.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3832
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 1692
  2⤵
  - Program crash
  PID:3744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3344 -ip 3344
1⤵
PID:4304

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3344 -ip 3344
1⤵
PID:4540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3344 -ip 3344
1⤵
PID:4028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3344 -ip 3344
1⤵
PID:4952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3344 -ip 3344
1⤵
PID:60

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3344 -ip 3344
1⤵
PID:2704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3344 -ip 3344
1⤵
PID:2360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3344 -ip 3344
1⤵
PID:3296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3344 -ip 3344
1⤵
PID:3464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3344 -ip 3344
1⤵
PID:528

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/3344-2-0x0000000004510000-0x000000000454B000-memory.dmp

Filesize
236KB

Download
memory/3344-1-0x00000000028A0000-0x00000000029A0000-memory.dmp

Filesize
1024KB

Download
memory/3344-3-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3344-8-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/3344-13-0x00000000028A0000-0x00000000029A0000-memory.dmp

Filesize
1024KB

Download
memory/3344-14-0x0000000004510000-0x000000000454B000-memory.dmp

Filesize
236KB

Download
memory/3344-17-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3344-16-0x0000000000400000-0x000000000279E000-memory.dmp

Filesize
35.6MB

Download
memory/3344-29-0x0000000000400000-0x000000000279E000-memory.dmp

Filesize
35.6MB

Download
memory/3344-36-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3344-35-0x0000000000400000-0x000000000279E000-memory.dmp

Filesize
35.6MB

Download

Analysis

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