gcleaner | 5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
12-09-2024 22:36

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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

Deletes itself 1 IoCs

pid	Process
2744	cmd.exe

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
2640	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2640	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 2744	1976	5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b.exe	32
PID 1976 wrote to memory of 2744	1976	5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b.exe	32
PID 1976 wrote to memory of 2744	1976	5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b.exe	32
PID 1976 wrote to memory of 2744	1976	5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b.exe	32
PID 2744 wrote to memory of 2640	2744	cmd.exe	34
PID 2744 wrote to memory of 2640	2744	cmd.exe	34
PID 2744 wrote to memory of 2640	2744	cmd.exe	34
PID 2744 wrote to memory of 2640	2744	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b.exe
"C:\Users\Admin\AppData\Local\Temp\5ab1b5c6a038381191b0539049a87a825ba76a79a0b7c73da22fb7031202b41b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1976
- 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⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2744
- - 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:2640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\4RXRX1VH\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1976-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/1976-3-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1976-2-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1976-8-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/1976-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1976-11-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1976-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1976-23-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/1976-21-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download