gcleaner | 5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b

Analysis

max time kernel
104s
max time network
106s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
10-09-2024 21:59

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General

Target

5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b.exe
Size

295KB
MD5

6e3716c0a67dc70a318593daf25042a5
SHA1

19f7e468a80a36995a71199edc7307b2dfced214
SHA256

5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b
SHA512

0ec466775d1f47425a12849aa803595fa196cf7c29e0a4a9171991f87d3a040d83bf623709dc92de72b2d7acdc6ddc91567555dc820b6b74e3c85bf2d647c2e4
SSDEEP

6144:Q0DNVFqzDiBBvQk1fyIUhMUvhruX/76L/M40Vdh1aQ:QENVI3iBBvxfyIUWs+76QVdz

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4500	2388	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	5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b.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
1704	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1704	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2520	2388	5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b.exe	97
PID 2388 wrote to memory of 2520	2388	5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b.exe	97
PID 2388 wrote to memory of 2520	2388	5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b.exe	97
PID 2520 wrote to memory of 1704	2520	cmd.exe	101
PID 2520 wrote to memory of 1704	2520	cmd.exe	101
PID 2520 wrote to memory of 1704	2520	cmd.exe	101

C:\Users\Admin\AppData\Local\Temp\5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b.exe
"C:\Users\Admin\AppData\Local\Temp\5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2520
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1704
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2388 -s 1444
  2⤵
  - Program crash
  PID:4500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2388 -ip 2388
1⤵
PID:4872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\951G8FD5\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2388-1-0x00000000007B0000-0x00000000008B0000-memory.dmp

Filesize
1024KB

Download
memory/2388-2-0x00000000021A0000-0x00000000021CD000-memory.dmp

Filesize
180KB

Download
memory/2388-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2388-8-0x00000000007B0000-0x00000000008B0000-memory.dmp

Filesize
1024KB

Download
memory/2388-10-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2388-11-0x00000000021A0000-0x00000000021CD000-memory.dmp

Filesize
180KB

Download
memory/2388-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2388-21-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2388-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download