Analysis

  • max time kernel
    156s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2022, 19:29

General

  • Target

    89b4ea041eca3ffaad934d52f3c67e86cf936d617525e76889e356c7457896ba.exe

  • Size

    30KB

  • MD5

    6083003ae026dda807c0f8cab9534dec

  • SHA1

    f3a3cc707cee8f450be17417b497bb2dbba4662d

  • SHA256

    89b4ea041eca3ffaad934d52f3c67e86cf936d617525e76889e356c7457896ba

  • SHA512

    af980737fc577c62ede04745f861e24d804b7da3fd39ba1922b70144387f0cff3d60047887fa23f4d49bfc7d36d964e5c0da1fb47828d90934136bac167d1498

  • SSDEEP

    768:gb3EhwiDVnjNL2K1IfnrzMkg8vUF17HcAm:gb3ESqLh1IzzMkggy17Hch

Score
8/10

Malware Config

Signatures

  • Adds policy Run key to start application 2 TTPs 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Modifies Installed Components in the registry 2 TTPs 2 IoCs
  • UPX packed file 7 IoCs

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

  • Drops file in System32 directory 6 IoCs
  • Drops file in Windows directory 8 IoCs
  • Checks processor information in registry 2 TTPs 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 52 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\89b4ea041eca3ffaad934d52f3c67e86cf936d617525e76889e356c7457896ba.exe
    "C:\Users\Admin\AppData\Local\Temp\89b4ea041eca3ffaad934d52f3c67e86cf936d617525e76889e356c7457896ba.exe"
    1⤵
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Checks processor information in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3544
    • C:\Windows\svchost.exe
      C:\Windows\svchost.exe
      2⤵
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Modifies Installed Components in the registry
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Checks processor information in registry
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:380
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del "C:\Users\Admin\AppData\Local\Temp\89b4ea041eca3ffaad934d52f3c67e86cf936d617525e76889e356c7457896ba.exe"
      2⤵
        PID:3656

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\msxsfl.com

      Filesize

      30KB

      MD5

      6083003ae026dda807c0f8cab9534dec

      SHA1

      f3a3cc707cee8f450be17417b497bb2dbba4662d

      SHA256

      89b4ea041eca3ffaad934d52f3c67e86cf936d617525e76889e356c7457896ba

      SHA512

      af980737fc577c62ede04745f861e24d804b7da3fd39ba1922b70144387f0cff3d60047887fa23f4d49bfc7d36d964e5c0da1fb47828d90934136bac167d1498

    • C:\Windows\svchost.exe

      Filesize

      30KB

      MD5

      6083003ae026dda807c0f8cab9534dec

      SHA1

      f3a3cc707cee8f450be17417b497bb2dbba4662d

      SHA256

      89b4ea041eca3ffaad934d52f3c67e86cf936d617525e76889e356c7457896ba

      SHA512

      af980737fc577c62ede04745f861e24d804b7da3fd39ba1922b70144387f0cff3d60047887fa23f4d49bfc7d36d964e5c0da1fb47828d90934136bac167d1498

    • C:\Windows\svchost.exe

      Filesize

      30KB

      MD5

      6083003ae026dda807c0f8cab9534dec

      SHA1

      f3a3cc707cee8f450be17417b497bb2dbba4662d

      SHA256

      89b4ea041eca3ffaad934d52f3c67e86cf936d617525e76889e356c7457896ba

      SHA512

      af980737fc577c62ede04745f861e24d804b7da3fd39ba1922b70144387f0cff3d60047887fa23f4d49bfc7d36d964e5c0da1fb47828d90934136bac167d1498

    • memory/380-135-0x0000000000400000-0x000000000041D000-memory.dmp

      Filesize

      116KB

    • memory/380-140-0x0000000000400000-0x000000000041D000-memory.dmp

      Filesize

      116KB

    • memory/3544-132-0x0000000000400000-0x000000000041D000-memory.dmp

      Filesize

      116KB

    • memory/3544-139-0x0000000000400000-0x000000000041D000-memory.dmp

      Filesize

      116KB