Analysis

  • max time kernel
    150s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-10-2023 08:46

General

  • Target

    3a63992bc8760d45bd1e0887421fc7d510f490025109d5c1a7247d09ed2f14ff.exe

  • Size

    2.5MB

  • MD5

    eaca518b1e134dcb313324dfe5be66fb

  • SHA1

    b4c66ccf5b67adb33ea9e6fa2c16e97f5d31f1df

  • SHA256

    3a63992bc8760d45bd1e0887421fc7d510f490025109d5c1a7247d09ed2f14ff

  • SHA512

    697513968490a072ab468b44b0e7e84f7480703b6d31d16db3d75be90b004d116ae57e1367e1d8ce436d48f661c193551a23716da1513577395d218d03296797

  • SSDEEP

    49152:RSnEknyUzsrkl5daDwXt8aHc68V/V7L1T:GDn3z0kUDwXtfH+5V1T

Score
10/10

Malware Config

Signatures

  • r77

    r77 is an open-source, userland rootkit.

  • r77 rootkit payload 2 IoCs

    Detects the payload of the r77 rootkit.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 25 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3a63992bc8760d45bd1e0887421fc7d510f490025109d5c1a7247d09ed2f14ff.exe
    "C:\Users\Admin\AppData\Local\Temp\3a63992bc8760d45bd1e0887421fc7d510f490025109d5c1a7247d09ed2f14ff.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2712
    • C:\Users\Admin\AppData\Local\Temp\a.exe
      C:\Users\Admin\AppData\Local\Temp\\a.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4152

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\a.exe

    Filesize

    1.3MB

    MD5

    d5e098531d6c0d3d59541f934b62dfba

    SHA1

    182489876f54e3f51fbcb468a04e18f5589f872c

    SHA256

    06b4d1399741e9af55f549e9940319e1ef6ddf42266662142c214d85fd1f72af

    SHA512

    b3c4a064c7603c0f737c805aee4b402634d8e1412a73c9a3acf5a2e9ad9d7e61ef06faa1e6ff3351caba6c2c7869dab6999f978ef6342019cc5a7a4da4660f33

  • C:\Users\Admin\AppData\Local\Temp\a.exe

    Filesize

    1.3MB

    MD5

    d5e098531d6c0d3d59541f934b62dfba

    SHA1

    182489876f54e3f51fbcb468a04e18f5589f872c

    SHA256

    06b4d1399741e9af55f549e9940319e1ef6ddf42266662142c214d85fd1f72af

    SHA512

    b3c4a064c7603c0f737c805aee4b402634d8e1412a73c9a3acf5a2e9ad9d7e61ef06faa1e6ff3351caba6c2c7869dab6999f978ef6342019cc5a7a4da4660f33

  • memory/2712-30-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-15-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-5-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-34-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-9-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-11-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-13-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-36-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-17-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-19-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-21-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-23-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-26-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-38-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-0-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-32-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-7-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-3-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-28-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-40-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-42-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-44-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-46-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-1-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/2712-2-0x0000000010000000-0x000000001003F000-memory.dmp

    Filesize

    252KB

  • memory/4152-50-0x0000024AEEFB0000-0x0000024AEEFE2000-memory.dmp

    Filesize

    200KB

  • memory/4152-51-0x00007FF87A380000-0x00007FF87AE41000-memory.dmp

    Filesize

    10.8MB

  • memory/4152-53-0x0000024AEF970000-0x0000024AEF980000-memory.dmp

    Filesize

    64KB

  • memory/4152-52-0x0000024AEF970000-0x0000024AEF980000-memory.dmp

    Filesize

    64KB

  • memory/4152-54-0x0000024AEF970000-0x0000024AEF980000-memory.dmp

    Filesize

    64KB

  • memory/4152-55-0x0000024AEF970000-0x0000024AEF980000-memory.dmp

    Filesize

    64KB

  • memory/4152-56-0x0000024AEF970000-0x0000024AEF980000-memory.dmp

    Filesize

    64KB

  • memory/4152-57-0x00007FF87A380000-0x00007FF87AE41000-memory.dmp

    Filesize

    10.8MB