Analysis

  • max time kernel
    150s
  • max time network
    160s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    16-07-2021 12:29

General

  • Target

    c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe

  • Size

    5.3MB

  • MD5

    8ef5332fdb6ef8626ba63cfcf716370f

  • SHA1

    482f1cd74f401a545a62a2f0bac89ee37f103627

  • SHA256

    c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479

  • SHA512

    451492c1f80828022a989ef4d77b79ad42736d23db150123cc21c5ffff6aebd3b78853399bd293d97cbeca2fc499bb15a7ccb5c6805e535214f0a23a75763c2e

Score
6/10

Malware Config

Signatures

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • 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.

  • Modifies system certificate store 2 TTPs 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe
    "C:\Users\Admin\AppData\Local\Temp\c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • System policy modification
    PID:2012

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Bootkit

1
T1067

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

2
T1112

Command and Control

Web Service

1
T1102

Replay Monitor

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Downloads

  • memory/2012-59-0x00000000009A0000-0x00000000009A1000-memory.dmp
    Filesize

    4KB

  • memory/2012-61-0x0000000002350000-0x0000000002382000-memory.dmp
    Filesize

    200KB

  • memory/2012-62-0x0000000004590000-0x0000000004591000-memory.dmp
    Filesize

    4KB

  • memory/2012-64-0x0000000004596000-0x00000000045A7000-memory.dmp
    Filesize

    68KB

  • memory/2012-63-0x0000000004591000-0x0000000004592000-memory.dmp
    Filesize

    4KB

  • memory/2012-65-0x00000000045A7000-0x00000000045A8000-memory.dmp
    Filesize

    4KB