e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e

Analysis

max time kernel
15s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
30-10-2022 18:39

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General

Target

e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe
Size

302KB
MD5

823ede592dd1d0d7b564dd0bc45c119a
SHA1

36d17ae4de4b47f90b4288a785f02c60f021eaac
SHA256

e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e
SHA512

5c391584a8d8a43a29444de3ea463ba3d5682017442c0e848cbbb43d8344aab0e2e565d19669e9577143d9881953819b5cdf3f7c3f9c93e8fbcf1d841fe86ee3
SSDEEP

6144:2zm01fxxOUCjMOc+WjRSCnVW5GJZ2tNYLj8MfsBB+2Anva:2y037VzYKj86s3+23

Score

6^/10

bootkit persistence

Malware Config

Signatures

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

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1432 set thread context of 1480	1432	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe	28

Modifies registry class 3 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1480	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe
1480	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1432	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1432 wrote to memory of 1480	1432	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe	28
PID 1432 wrote to memory of 1480	1432	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe	28
PID 1432 wrote to memory of 1480	1432	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe	28
PID 1432 wrote to memory of 1480	1432	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe	28
PID 1432 wrote to memory of 1480	1432	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe	28
PID 1432 wrote to memory of 1480	1432	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe	28
PID 1432 wrote to memory of 1480	1432	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe	28
PID 1432 wrote to memory of 1480	1432	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe	28
PID 1480 wrote to memory of 1376	1480	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe	11
PID 1480 wrote to memory of 1376	1480	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe	11
PID 1480 wrote to memory of 1376	1480	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe	11
PID 1480 wrote to memory of 1376	1480	e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe	11

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1376
- C:\Users\Admin\AppData\Local\Temp\e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe
  "C:\Users\Admin\AppData\Local\Temp\e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe"
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of SetThreadContext
  - Modifies registry class
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1432
- - C:\Users\Admin\AppData\Local\Temp\e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe
    C:\Users\Admin\AppData\Local\Temp\e5f4bb4dab3d465b2fc919313b0631fbc540c50a5d62af3878efbad607601a8e.exe
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1480

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1376-62-0x000000007FFF0000-0x000000007FFF7000-memory.dmp

Filesize
28KB

Download
memory/1432-59-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/1480-56-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1480-60-0x0000000000400000-0x00000000004083A0-memory.dmp

Filesize
32KB

Download
memory/1480-61-0x0000000075FB1000-0x0000000075FB3000-memory.dmp

Filesize
8KB

Download
memory/1480-65-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download