gcleaner | 3cf4b258142373b805745bdc652582e00b0d95da8c9729be02833977923e62fc

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-09-2024 05:50

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General

Target

fd9a3c71d5a32e7225629951d31dc852.exe
Size

302KB
MD5

fd9a3c71d5a32e7225629951d31dc852
SHA1

a3de7d79c42fa9b7509e64c74805527ef067d008
SHA256

3cf4b258142373b805745bdc652582e00b0d95da8c9729be02833977923e62fc
SHA512

b047e87a77e3f1de57b4f001c879a478ff9eeebfbb26251907484c37c20eb8b179fdd0913be32ef376d063f77a9562acbc295b9472b3b913e4f8cf51a1f52675
SSDEEP

6144:JGLgjInTdk8y0FQ7VkmPun5mrQVXQ/UpSFYc5Qi:8UsTdkAQJkmPA5yQVXbri

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

Processes:

cmd.exe

pid process

2512 cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2512	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

Processes:

taskkill.exefd9a3c71d5a32e7225629951d31dc852.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fd9a3c71d5a32e7225629951d31dc852.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2488 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2488 taskkill.exe

pid	process
2488	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2488	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

fd9a3c71d5a32e7225629951d31dc852.execmd.exe

description	pid	process	target process
PID 2052 wrote to memory of 2512	2052	fd9a3c71d5a32e7225629951d31dc852.exe	cmd.exe
PID 2052 wrote to memory of 2512	2052	fd9a3c71d5a32e7225629951d31dc852.exe	cmd.exe
PID 2052 wrote to memory of 2512	2052	fd9a3c71d5a32e7225629951d31dc852.exe	cmd.exe
PID 2052 wrote to memory of 2512	2052	fd9a3c71d5a32e7225629951d31dc852.exe	cmd.exe
PID 2512 wrote to memory of 2488	2512	cmd.exe	taskkill.exe
PID 2512 wrote to memory of 2488	2512	cmd.exe	taskkill.exe
PID 2512 wrote to memory of 2488	2512	cmd.exe	taskkill.exe
PID 2512 wrote to memory of 2488	2512	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\fd9a3c71d5a32e7225629951d31dc852.exe
"C:\Users\Admin\AppData\Local\Temp\fd9a3c71d5a32e7225629951d31dc852.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2052

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "fd9a3c71d5a32e7225629951d31dc852.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\fd9a3c71d5a32e7225629951d31dc852.exe" & exit
2⤵
- Deletes itself
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2512

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "fd9a3c71d5a32e7225629951d31dc852.exe" /f
3⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2488

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\Temporary Internet Files\Content.IE5\ZOGPI1N2\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/2052-1-0x00000000006B0000-0x00000000007B0000-memory.dmp

Filesize
1024KB

Download
memory/2052-3-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/2052-2-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2052-9-0x00000000006B0000-0x00000000007B0000-memory.dmp

Filesize
1024KB

Download
memory/2052-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2052-11-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/2052-23-0x00000000006B0000-0x00000000007B0000-memory.dmp

Filesize
1024KB

Download
memory/2052-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2052-21-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download