Overview

overview

10

Static

static

10

Nursultan.exe

windows7-x64

10

Nursultan.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    870s
  • max time network
    426s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-12-2024 14:09

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    Nursultan.exe

  • Size

    93KB

  • MD5

    73c7a3c03ab43cd390c64e04374c43d9

  • SHA1

    661c1d5642647432a69c1471803a007592b16543

  • SHA256

    8280702dae2acdb7ffe64077ff710b22474109e5adbd0b600f333f3902fd7ff9

  • SHA512

    2cd13500928ce9179b5c8ddec0c5e07713754e8e8665f973e4006a374e210aa30c5bb5763807dc91d22cf89952f4a7ca6eda992ac3bfae684b3cf7754e087b0c

  • SSDEEP

    1536:axGq+8Tnc7iXQj5piFejEwzGi1dDIDngS:axXTnkiXE4Vi1dOg

Score
8/10
discoveryevasionpersistenceprivilege_escalation

Malware Config

Signatures

  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops autorun.inf file 1 TTPs 4 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

    persistenceprivilege_escalation
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Nursultan.exe
    "C:\Users\Admin\AppData\Local\Temp\Nursultan.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3780
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Drops autorun.inf file
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3856
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:4084
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
      PID:2100
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /4
      1⤵
        PID:1064
      • C:\Windows\system32\taskmgr.exe
        "C:\Windows\system32\taskmgr.exe" /4
        1⤵
          PID:676

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\server.exe
          Filesize

          93KB

          MD5

          73c7a3c03ab43cd390c64e04374c43d9

          SHA1

          661c1d5642647432a69c1471803a007592b16543

          SHA256

          8280702dae2acdb7ffe64077ff710b22474109e5adbd0b600f333f3902fd7ff9

          SHA512

          2cd13500928ce9179b5c8ddec0c5e07713754e8e8665f973e4006a374e210aa30c5bb5763807dc91d22cf89952f4a7ca6eda992ac3bfae684b3cf7754e087b0c

          Download Submit

        • C:\Users\Admin\AppData\Roaming\app
          Filesize

          5B

          MD5

          53ce6d1ae8885b5d12e654469f456c83

          SHA1

          9d8b30c523ddef4d24134072b27716bec7d94d6f

          SHA256

          d7ebf92ad6e3bc44fbc3cfbb234ef4afafd7ea339f712229641a2849b6f87ce2

          SHA512

          c15df9281e9ccbb8d30e24e751b77a030e734f8cda4bd9482d3ca02f6b23e463a8e90ddd78a582ca059e57b8d0492c22583d792bc7368094ffc06e12cd145d9d

          Download Submit

        • memory/3780-0-0x0000000075332000-0x0000000075333000-memory.dmp

          Filesize

          4KB

          Download

        • memory/3780-1-0x0000000075330000-0x00000000758E1000-memory.dmp

          Filesize

          5.7MB

          Download

        • memory/3780-2-0x0000000075330000-0x00000000758E1000-memory.dmp

          Filesize

          5.7MB

          Download

        • memory/3780-13-0x0000000075330000-0x00000000758E1000-memory.dmp

          Filesize

          5.7MB

          Download

        • memory/3856-14-0x0000000075330000-0x00000000758E1000-memory.dmp

          Filesize

          5.7MB

          Download

        • memory/3856-15-0x0000000075330000-0x00000000758E1000-memory.dmp

          Filesize

          5.7MB

          Download

        • memory/3856-29-0x0000000075330000-0x00000000758E1000-memory.dmp

          Filesize

          5.7MB

          Download