gcleaner | 140ff01ce940b33fb6b4111310379255fece9c72c1b275089a46cd7682819c07

General

Target

140ff01ce940b33fb6b4111310379255fece9c72c1b275089a46cd7682819c07N.exe
Size

454KB
MD5

9e7b9e4a7ded28cd4c8a4003fe0b9b00
SHA1

b19b8df33f77c739e03c0aac4fd6da410e336691
SHA256

140ff01ce940b33fb6b4111310379255fece9c72c1b275089a46cd7682819c07
SHA512

0247a017a3493c7df99b14a4e1f5cadba0703e0da9775996cdaa6200c0ac2a9125c60500779879c12bdcd1bac0475b740b2ba117c89e9452bc8217727f746c43
SSDEEP

6144:1LdeTU+VIk/fYCxGnXOWwYA0g6EU6hv7jT41Pz+7gXH9Ay6BbOkT0:eTU+ik4CMXOHr0Pz+SdkNOM

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

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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	140ff01ce940b33fb6b4111310379255fece9c72c1b275089a46cd7682819c07N.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
3692	4680	WerFault.exe	83
4840	4680	WerFault.exe	83
2216	4680	WerFault.exe	83
4392	4680	WerFault.exe	83
3724	4680	WerFault.exe	83
1124	4680	WerFault.exe	83
3016	4680	WerFault.exe	83
2312	4680	WerFault.exe	83
3588	4680	WerFault.exe	83
2016	4680	WerFault.exe	83

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	140ff01ce940b33fb6b4111310379255fece9c72c1b275089a46cd7682819c07N.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
2160	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2160	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4680 wrote to memory of 3796	4680	140ff01ce940b33fb6b4111310379255fece9c72c1b275089a46cd7682819c07N.exe	103
PID 4680 wrote to memory of 3796	4680	140ff01ce940b33fb6b4111310379255fece9c72c1b275089a46cd7682819c07N.exe	103
PID 4680 wrote to memory of 3796	4680	140ff01ce940b33fb6b4111310379255fece9c72c1b275089a46cd7682819c07N.exe	103
PID 3796 wrote to memory of 2160	3796	cmd.exe	107
PID 3796 wrote to memory of 2160	3796	cmd.exe	107
PID 3796 wrote to memory of 2160	3796	cmd.exe	107

C:\Users\Admin\AppData\Local\Temp\140ff01ce940b33fb6b4111310379255fece9c72c1b275089a46cd7682819c07N.exe
"C:\Users\Admin\AppData\Local\Temp\140ff01ce940b33fb6b4111310379255fece9c72c1b275089a46cd7682819c07N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4680 -s 748
  2⤵
  - Program crash
  PID:3692
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4680 -s 756
  2⤵
  - Program crash
  PID:4840
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4680 -s 764
  2⤵
  - Program crash
  PID:2216
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4680 -s 836
  2⤵
  - Program crash
  PID:4392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4680 -s 904
  2⤵
  - Program crash
  PID:3724
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4680 -s 908
  2⤵
  - Program crash
  PID:1124
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4680 -s 1004
  2⤵
  - Program crash
  PID:3016
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4680 -s 1428
  2⤵
  - Program crash
  PID:2312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "140ff01ce940b33fb6b4111310379255fece9c72c1b275089a46cd7682819c07N.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\140ff01ce940b33fb6b4111310379255fece9c72c1b275089a46cd7682819c07N.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3796
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "140ff01ce940b33fb6b4111310379255fece9c72c1b275089a46cd7682819c07N.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2160
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4680 -s 1392
  2⤵
  - Program crash
  PID:3588
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4680 -s 1400
  2⤵
  - Program crash
  PID:2016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4680 -ip 4680
1⤵
PID:1388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4680 -ip 4680
1⤵
PID:2008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4680 -ip 4680
1⤵
PID:3240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4680 -ip 4680
1⤵
PID:3500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4680 -ip 4680
1⤵
PID:3024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4680 -ip 4680
1⤵
PID:2096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4680 -ip 4680
1⤵
PID:4372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4680 -ip 4680
1⤵
PID:32

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4680 -ip 4680
1⤵
PID:3716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4680 -ip 4680
1⤵
PID:504

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\8B3ZU6S9\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4680-1-0x0000000000670000-0x0000000000770000-memory.dmp

Filesize
1024KB

Download
memory/4680-2-0x0000000000630000-0x000000000065D000-memory.dmp

Filesize
180KB

Download
memory/4680-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4680-8-0x0000000000670000-0x0000000000770000-memory.dmp

Filesize
1024KB

Download
memory/4680-10-0x0000000000630000-0x000000000065D000-memory.dmp

Filesize
180KB

Download
memory/4680-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4680-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4680-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4680-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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