Overview

overview

10

Static

static

8

3.msi

windows7_x64

10

3.msi

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    164s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    09-07-2020 12:34

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General

  • Target

    3.msi

  • Size

    2.7MB

  • MD5

    37d4011965747658d3a4dce01d375677

  • SHA1

    a6ecd3a818d463155c31977000e6fde3eb8a2352

  • SHA256

    2461d5d8eb8bfaa6b178fe2c457c215bbea85443a7d33bb007aa7dce52428d18

  • SHA512

    9bdb506ae47b731efbdaedac5a95cc3e9d915f6a0de4b359e991c33e39cbc1072c47e10aeb35adf9d7a071d340346be09d8602f15d0faba346961751cf642329

Score
10/10
persistencetrojanevilnum

Malware Config

Signatures

  • Evilnum

    A malware family with multiple components distributed through LNK files.

    trojanevilnum
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 6 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

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

  • Drops file in System32 directory 33 IoCs
  • Modifies service 2 TTPs 147 IoCs
    persistence
  • Drops file in Windows directory 12 IoCs
  • Modifies Control Panel 1 IoCs
    evasion
  • Modifies data under HKEY_USERS 44 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 208 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\3.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1408
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Modifies service
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1560
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 81DE3C4374467D515C17F1DF5647DCF8
      2⤵
      • Loads dropped DLL
      PID:1948
    • C:\Users\Admin\AppData\Local\microsoft\Mediia\ypoc.exe
      "C:\Users\Admin\AppData\Local\microsoft\Mediia\ypoc.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2000
      • C:\Users\Admin\AppData\Localpolicy\policy.exe
        "C:\Users\Admin\AppData\Localpolicy\policy.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in System32 directory
        • Modifies Control Panel
        PID:1572
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Modifies service
    • Suspicious use of AdjustPrivilegeToken
    PID:536
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot12" "" "" "6d110b0a3" "0000000000000000" "00000000000005A4" "00000000000005AC"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:1832

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1408-0-0x00000000040E0000-0x00000000040E4000-memory.dmp

    Filesize

    16KB

    Download

  • memory/1408-52-0x00000000040E0000-0x00000000040E4000-memory.dmp

    Filesize

    16KB

    Download

  • memory/1408-53-0x0000000002330000-0x0000000002334000-memory.dmp

    Filesize

    16KB

    Download

  • memory/1560-49-0x0000000001640000-0x0000000001660000-memory.dmp

    Filesize

    128KB

    Download

  • memory/1560-8-0x0000000001640000-0x0000000001660000-memory.dmp

    Filesize

    128KB

    Download

  • memory/1560-7-0x00000000017F0000-0x00000000017F4000-memory.dmp

    Filesize

    16KB

    Download

  • memory/1560-6-0x0000000001870000-0x0000000001874000-memory.dmp

    Filesize

    16KB

    Download

  • memory/1560-48-0x0000000004BA0000-0x0000000004BA4000-memory.dmp

    Filesize

    16KB

    Download

  • memory/1560-51-0x0000000004BA0000-0x0000000004BA4000-memory.dmp

    Filesize

    16KB

    Download