gcleaner | 2ad7f6c458f4284a70b4c3c8df5b94192640c6b6640ce3263ff51b22486ec88a

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
20/08/2024, 11:35

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General

Target

443481bdfa92ecce6368de3f6a566f6f.exe
Size

306KB
MD5

443481bdfa92ecce6368de3f6a566f6f
SHA1

ce634d3a596584f2e247240406ee87466320207b
SHA256

2ad7f6c458f4284a70b4c3c8df5b94192640c6b6640ce3263ff51b22486ec88a
SHA512

ba53d8095ae0452a8a883e6c039c6c85dd5bc4ce963157601568f1a9a80c4f1e9d12c094b08d09166a36f6889597d528b087a2556ba23b8ba8bf65d1f75f9e8d
SSDEEP

3072:KOwWukWX+aOMHrU2KfldTOsaLsEDaJR5Y2zoYLl:XMXqMHvK/2LtMzl

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
2696	cmd.exe

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

System Information Discovery
T1082

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	443481bdfa92ecce6368de3f6a566f6f.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2592	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2592	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1532 wrote to memory of 2696	1532	443481bdfa92ecce6368de3f6a566f6f.exe	31
PID 1532 wrote to memory of 2696	1532	443481bdfa92ecce6368de3f6a566f6f.exe	31
PID 1532 wrote to memory of 2696	1532	443481bdfa92ecce6368de3f6a566f6f.exe	31
PID 1532 wrote to memory of 2696	1532	443481bdfa92ecce6368de3f6a566f6f.exe	31
PID 2696 wrote to memory of 2592	2696	cmd.exe	33
PID 2696 wrote to memory of 2592	2696	cmd.exe	33
PID 2696 wrote to memory of 2592	2696	cmd.exe	33
PID 2696 wrote to memory of 2592	2696	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\443481bdfa92ecce6368de3f6a566f6f.exe
"C:\Users\Admin\AppData\Local\Temp\443481bdfa92ecce6368de3f6a566f6f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1532
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "443481bdfa92ecce6368de3f6a566f6f.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\443481bdfa92ecce6368de3f6a566f6f.exe" & exit
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2696
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "443481bdfa92ecce6368de3f6a566f6f.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2592

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\YW15VCHK\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1532-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/1532-2-0x0000000000250000-0x000000000027D000-memory.dmp

Filesize
180KB

Download
memory/1532-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1532-7-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/1532-9-0x0000000000250000-0x000000000027D000-memory.dmp

Filesize
180KB

Download
memory/1532-11-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1532-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1532-22-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/1532-21-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1532-23-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download