647fe820d5315d3eeb7feed32f083c038e743cb8a4c32281269499126621c8f6

Analysis

max time kernel
129s
max time network
26s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
16/11/2023, 22:20

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General

Target

shutdownwin10.exe
Size

241KB
MD5

89e95190fc60f8f5b624b701a0f63068
SHA1

a36ec9dfed535e4b7715725e59d451648f6b644c
SHA256

647fe820d5315d3eeb7feed32f083c038e743cb8a4c32281269499126621c8f6
SHA512

0f44f96aef70dd86ff31fc6252137bbdcb270c885e84d133e016f86a39eb0bd86daf8d4b82246189aacf7559ecc31a4f8ac78ce3ba2294696d86f8f0a524ad3a
SSDEEP

6144:ebRdyCIzMEZ4DQ0SsG4kZ6dyCIzMEZ4DQ0SsG4iq:xlzMKwAZ1lzMKw/

Score

8^/10

discovery exploit

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs

exploit

pid	Process
2516	takeown.exe
2540	icacls.exe

Modifies file permissions 1 TTPs 2 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2516	takeown.exe
2540	icacls.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\shutdown.exe	shutdownwin10.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	2516	takeown.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2620 wrote to memory of 2376	2620	shutdownwin10.exe	29
PID 2620 wrote to memory of 2376	2620	shutdownwin10.exe	29
PID 2620 wrote to memory of 2376	2620	shutdownwin10.exe	29
PID 2376 wrote to memory of 2516	2376	cmd.exe	31
PID 2376 wrote to memory of 2516	2376	cmd.exe	31
PID 2376 wrote to memory of 2516	2376	cmd.exe	31
PID 2376 wrote to memory of 2540	2376	cmd.exe	32
PID 2376 wrote to memory of 2540	2376	cmd.exe	32
PID 2376 wrote to memory of 2540	2376	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\shutdownwin10.exe
"C:\Users\Admin\AppData\Local\Temp\shutdownwin10.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2620
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32 && icacls C:\Windows\System32 /grant "%username%:F"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2376
- - C:\Windows\system32\takeown.exe
    takeown /f C:\Windows\System32
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    - Suspicious use of AdjustPrivilegeToken
    PID:2516
- - C:\Windows\system32\icacls.exe
    icacls C:\Windows\System32 /grant "Admin:F"
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:2540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2620-0-0x00000000011E0000-0x0000000001222000-memory.dmp

Filesize
264KB

Download
memory/2620-1-0x000007FEF50E0000-0x000007FEF5ACC000-memory.dmp

Filesize
9.9MB

Download
memory/2620-2-0x000000001AEF0000-0x000000001AF70000-memory.dmp

Filesize
512KB

Download
memory/2620-3-0x000007FEF50E0000-0x000007FEF5ACC000-memory.dmp

Filesize
9.9MB

Download
memory/2620-4-0x000000001AEF0000-0x000000001AF70000-memory.dmp

Filesize
512KB

Download
memory/2620-6-0x000007FEF50E0000-0x000007FEF5ACC000-memory.dmp

Filesize
9.9MB

Download