8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0

Analysis

max time kernel
149s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
09-01-2024 09:43

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General

Target

4dfbad475b27a8a0efb1e9a7ef7970b2.exe
Size

21KB
MD5

4dfbad475b27a8a0efb1e9a7ef7970b2
SHA1

547450bb3a828bc8ac65dc31d96636ef77c2b610
SHA256

8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0
SHA512

6f98e8353cf7ca146816a9d8a2e3913f967df453a90323de81b9d1152bb59c0194ae21fe79059d8296bb5f16bbe18f027ae376b2574a9ce1edb3c108d05905a2
SSDEEP

384:oCljiQc8rLfOf5x9nsBObC2ZQhCSgnPLUyLJ+6aOy9xRHjU:fiQcjX9nsBObxZQhCSgQyLA64l

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

T1542.003

Processes:

IEXPLORE.EXE

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	IEXPLORE.EXE

Suspicious use of SetThreadContext 1 IoCs

Processes:

4dfbad475b27a8a0efb1e9a7ef7970b2.exe

description	pid	Process	procid_target
PID 4436 set thread context of 944	4436	4dfbad475b27a8a0efb1e9a7ef7970b2.exe	15

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

IEXPLORE.EXE

pid	Process
944	IEXPLORE.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

4dfbad475b27a8a0efb1e9a7ef7970b2.exe

description	pid	Process
Token: SeIncBasePriorityPrivilege	4436	4dfbad475b27a8a0efb1e9a7ef7970b2.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

4dfbad475b27a8a0efb1e9a7ef7970b2.exe

description	pid	Process	procid_target
PID 4436 wrote to memory of 944	4436	4dfbad475b27a8a0efb1e9a7ef7970b2.exe	15
PID 4436 wrote to memory of 944	4436	4dfbad475b27a8a0efb1e9a7ef7970b2.exe	15
PID 4436 wrote to memory of 944	4436	4dfbad475b27a8a0efb1e9a7ef7970b2.exe	15
PID 4436 wrote to memory of 944	4436	4dfbad475b27a8a0efb1e9a7ef7970b2.exe	15
PID 4436 wrote to memory of 944	4436	4dfbad475b27a8a0efb1e9a7ef7970b2.exe	15
PID 4436 wrote to memory of 944	4436	4dfbad475b27a8a0efb1e9a7ef7970b2.exe	15
PID 4436 wrote to memory of 944	4436	4dfbad475b27a8a0efb1e9a7ef7970b2.exe	15

C:\Users\Admin\AppData\Local\Temp\4dfbad475b27a8a0efb1e9a7ef7970b2.exe
"C:\Users\Admin\AppData\Local\Temp\4dfbad475b27a8a0efb1e9a7ef7970b2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4436
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious behavior: EnumeratesProcesses
  PID:944

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/944-2-0x0000000013140000-0x00000000131E8000-memory.dmp

Filesize
672KB

Download
memory/4436-1-0x0000000014140000-0x0000000014149000-memory.dmp

Filesize
36KB

Download
memory/4436-0-0x0000000014140000-0x0000000014149000-memory.dmp

Filesize
36KB

Download