8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0

Analysis

max time kernel
146s
max time network
165s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
15-04-2022 22:48

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General

Target

8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0.exe
Size

21KB
MD5

4dfbad475b27a8a0efb1e9a7ef7970b2
SHA1

547450bb3a828bc8ac65dc31d96636ef77c2b610
SHA256

8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0
SHA512

6f98e8353cf7ca146816a9d8a2e3913f967df453a90323de81b9d1152bb59c0194ae21fe79059d8296bb5f16bbe18f027ae376b2574a9ce1edb3c108d05905a2

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

Processes:

IEXPLORE.EXE

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0.exe

description	pid	Process	procid_target
PID 3784 set thread context of 1812	3784	8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0.exe	75

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

IEXPLORE.EXE

pid	Process
1812	IEXPLORE.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0.exe

description	pid	Process
Token: SeIncBasePriorityPrivilege	3784	8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0.exe

description	pid	Process	procid_target
PID 3784 wrote to memory of 1812	3784	8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0.exe	75
PID 3784 wrote to memory of 1812	3784	8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0.exe	75
PID 3784 wrote to memory of 1812	3784	8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0.exe	75
PID 3784 wrote to memory of 1812	3784	8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0.exe	75
PID 3784 wrote to memory of 1812	3784	8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0.exe	75
PID 3784 wrote to memory of 1812	3784	8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0.exe	75
PID 3784 wrote to memory of 1812	3784	8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0.exe	75

C:\Users\Admin\AppData\Local\Temp\8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0.exe
"C:\Users\Admin\AppData\Local\Temp\8f94644c3292463229a39c1cff372b557f6571493b4c84fed8bce221cc1125b0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3784
- 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:1812

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/3784-130-0x0000000014140000-0x0000000014149000-memory.dmp

Filesize
36KB

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