4903af6f93e8071209af7b5ba37337d22c72676fc3ccc9b2e1313b0a384f1995

Analysis

max time kernel
113s
max time network
125s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
16-11-2023 22:20

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General

Target

wininitoverwriter.exe
Size

1.1MB
MD5

6b10b1ccb93e68986628cc285ea034df
SHA1

b2da46a7d5542110691a44bca53005aa94bfc795
SHA256

4903af6f93e8071209af7b5ba37337d22c72676fc3ccc9b2e1313b0a384f1995
SHA512

e8b7d3ab9d1e56532661911e97f1345743a2e47afb3e47db070d9b5b29aaf3e550f86bfb50a5c54f624446f07350e99e822fb1a5d305741b9086d6b21e7b8da2
SSDEEP

24576:ldz8yaFhsKrh0hg6TKnHYxERyMHdRE3LgLAOh7bCLsgi8fBi6dS:kkPKyqyuE3tOlmsh8f

Score

8^/10

discovery exploit

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs

exploit

pid	Process
2168	takeown.exe
1420	icacls.exe

Modifies file permissions 1 TTPs 2 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2168	takeown.exe
1420	icacls.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	2168	takeown.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2456 wrote to memory of 2088	2456	wininitoverwriter.exe	28
PID 2456 wrote to memory of 2088	2456	wininitoverwriter.exe	28
PID 2456 wrote to memory of 2088	2456	wininitoverwriter.exe	28
PID 2088 wrote to memory of 2168	2088	cmd.exe	30
PID 2088 wrote to memory of 2168	2088	cmd.exe	30
PID 2088 wrote to memory of 2168	2088	cmd.exe	30
PID 2088 wrote to memory of 1420	2088	cmd.exe	31
PID 2088 wrote to memory of 1420	2088	cmd.exe	31
PID 2088 wrote to memory of 1420	2088	cmd.exe	31

C:\Users\Admin\AppData\Local\Temp\wininitoverwriter.exe
"C:\Users\Admin\AppData\Local\Temp\wininitoverwriter.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2456
- 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:2088
- - C:\Windows\system32\takeown.exe
    takeown /f C:\Windows\System32
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    - Suspicious use of AdjustPrivilegeToken
    PID:2168
- - C:\Windows\system32\icacls.exe
    icacls C:\Windows\System32 /grant "Admin:F"
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1420

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

Replay Monitor

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Downloads

memory/2456-0-0x0000000000AD0000-0x0000000000BF8000-memory.dmp

Filesize
1.2MB

Download
memory/2456-1-0x000007FEF5290000-0x000007FEF5C7C000-memory.dmp

Filesize
9.9MB

Download
memory/2456-2-0x000000001B540000-0x000000001B5C0000-memory.dmp

Filesize
512KB

Download
memory/2456-3-0x000007FEF5290000-0x000007FEF5C7C000-memory.dmp

Filesize
9.9MB

Download
memory/2456-4-0x000000001B540000-0x000000001B5C0000-memory.dmp

Filesize
512KB

Download