Overview

overview

8

Static

static

ba6c8a5c36...59.exe

windows7-x64

6

ba6c8a5c36...59.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    227s
  • max time network
    301s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2022 06:26

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General

  • Target

    ba6c8a5c36451f87d7ba614de5c15b1e01678acd0db8f482689191d9873c6659.exe

  • Size

    830KB

  • MD5

    0d87c84d642f5a1d2df5df72091549c0

  • SHA1

    7fcf4e214cb1d981b940fd393140c2fa4b13e898

  • SHA256

    ba6c8a5c36451f87d7ba614de5c15b1e01678acd0db8f482689191d9873c6659

  • SHA512

    517580ba21ccfdf63bb9269b2d0e8489078e57685ea1d71235d54ba002469729dc08a9f9cace3daeafcb5319cf481882bd6a018ae7d8876cfc483698c0fce153

  • SSDEEP

    12288:kt8Q83MKOEAsl2T4bswqIERX0fNs1MVPQMqfwBKnotJJeDOVXVoBL0MbrI+Ekz3s:esbsBTXQNh75BKnKJd7+t6eHXKN

Score
6/10
bootkitpersistence

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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.

    bootkitpersistence
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of FindShellTrayWindow 11 IoCs
  • Suspicious use of SendNotifyMessage 11 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ba6c8a5c36451f87d7ba614de5c15b1e01678acd0db8f482689191d9873c6659.exe
    "C:\Users\Admin\AppData\Local\Temp\ba6c8a5c36451f87d7ba614de5c15b1e01678acd0db8f482689191d9873c6659.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    PID:1164

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Bootkit

1
T1067

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/1164-54-0x0000000075151000-0x0000000075153000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1164-55-0x0000000000400000-0x0000000000A1D000-memory.dmp
    Filesize

    6.1MB

    Download
  • memory/1164-57-0x0000000000400000-0x0000000000A1D000-memory.dmp
    Filesize

    6.1MB

    Download
  • memory/1164-58-0x0000000000400000-0x0000000000A1D000-memory.dmp
    Filesize

    6.1MB

    Download