b3020dd6c9ffceaba72c465c8d596cf04e2d7388b4fd58f10d78be6b91a7e99d

Analysis

max time kernel
24s
max time network
255s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
16-04-2024 06:49

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General

Target

salinewin.exe
Size

283KB
MD5

2b1e9226d7e1015552a21faca891ec41
SHA1

f87fcbe10fa9312048214d4473498ad4f9f331ce
SHA256

7163fefbf2f865ef78a2d3d4480532fffb979300d6f0a77b6f3fc5c4b0d2cada
SHA512

1852f6d05c9fca962178bc190bc8c90f0ca54ea99714480690f44417e49eee6c392579091ae8a6cd053ec47ad1980dbbbc0db3e0e00520ee1bdbadbf8dc9d69e
SSDEEP

3072:HZVUJ58IAelkapH3shY6iEwgaBZP5pHQpYR95WPNpNMl3:nUJ5PzB5ZPPHQpY35WPNpGl3

Score

8^/10

bootkit evasion persistence

Malware Config

Signatures

Disables Task Manager via registry modification
evasion

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	salinewin.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1672	reg.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	4504	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	4504	AUDIODG.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3376 wrote to memory of 2456	3376	salinewin.exe	105
PID 3376 wrote to memory of 2456	3376	salinewin.exe	105
PID 3376 wrote to memory of 2456	3376	salinewin.exe	105
PID 2456 wrote to memory of 1672	2456	cmd.exe	107
PID 2456 wrote to memory of 1672	2456	cmd.exe	107
PID 2456 wrote to memory of 1672	2456	cmd.exe	107

C:\Users\Admin\AppData\Local\Temp\salinewin.exe
"C:\Users\Admin\AppData\Local\Temp\salinewin.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
PID:3376
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c REG ADD hkcu\Software\Microsoft\Windows\CurrentVersion\policies\system /v DisableTaskMgr /t reg_dword /d 1 /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2456
- - C:\Windows\SysWOW64\reg.exe
    REG ADD hkcu\Software\Microsoft\Windows\CurrentVersion\policies\system /v DisableTaskMgr /t reg_dword /d 1 /f
    3⤵
    - Modifies registry key
    PID:1672

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4388,i,11689630796550498308,215737424132741214,262144 --variations-seed-version --mojo-platform-channel-handle=4112 /prefetch:8
1⤵
PID:2836

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x2cc 0x374
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4504

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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