Analysis

  • max time kernel
    145s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/03/2025, 10:56

General

  • Target

    Server.exe

  • Size

    93KB

  • MD5

    be8230b1a5ba47dacb5b4d4f990f0da2

  • SHA1

    1c44f6422cdf7117c69ab172625eee8d8a561159

  • SHA256

    c7bd3056f1c01d0d36cd4ee675677f9dd20be0684fe8520f18df7d303c494e94

  • SHA512

    26176c2277701fc6b2dd568cb7e9448a83ebfb4f4394469e24ed44511870b3d57e1cd6b6bbe8a305f2bebb7c701330a5be2e37b1f35c19055f43f640c879e402

  • SSDEEP

    1536:NUwC+xhUa9urgOBPmNvMcjEwzGi1dDGDIgS:NUmUa9urgOkdCi1dYx

Malware Config

Signatures

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

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

  • Executes dropped EXE 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs
  • 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.

  • 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.

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 37 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    "C:\Users\Admin\AppData\Local\Temp\Server.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5936
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLE
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:5972
    • C:\Users\Admin\AppData\Local\Temp\tmpCDBB.tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmpCDBB.tmp.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3704

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpCDBB.tmp.exe

    Filesize

    28KB

    MD5

    6c2210ba180f0e1b9d831c3c6c14c8b4

    SHA1

    00bebdf704f4cabf254583c6ad87c6e72872b61a

    SHA256

    501c36ac282029ccf7950a4957d4c10ea72fe18f0ad8d6daeabfe628fa4070a7

    SHA512

    26a63ad05199cf45acd7519fbc63945097b4c4a89bb2cdfa4f87ba004e1ce106220b0b99419e656de26d164265b3868a9ce541c71b05d4e4db1a9a1343130e9b

  • memory/3704-23-0x0000000006030000-0x00000000065D4000-memory.dmp

    Filesize

    5.6MB

  • memory/3704-27-0x0000000071400000-0x0000000071BB0000-memory.dmp

    Filesize

    7.7MB

  • memory/3704-29-0x0000000071400000-0x0000000071BB0000-memory.dmp

    Filesize

    7.7MB

  • memory/3704-28-0x000000007140E000-0x000000007140F000-memory.dmp

    Filesize

    4KB

  • memory/3704-26-0x0000000005B90000-0x0000000005BE6000-memory.dmp

    Filesize

    344KB

  • memory/3704-25-0x0000000005B20000-0x0000000005B2A000-memory.dmp

    Filesize

    40KB

  • memory/3704-20-0x000000007140E000-0x000000007140F000-memory.dmp

    Filesize

    4KB

  • memory/3704-24-0x0000000005A80000-0x0000000005B12000-memory.dmp

    Filesize

    584KB

  • memory/3704-21-0x0000000000FE0000-0x0000000000FEE000-memory.dmp

    Filesize

    56KB

  • memory/3704-22-0x00000000059E0000-0x0000000005A7C000-memory.dmp

    Filesize

    624KB

  • memory/5936-2-0x00000000749F0000-0x0000000074FA1000-memory.dmp

    Filesize

    5.7MB

  • memory/5936-0-0x00000000749F2000-0x00000000749F3000-memory.dmp

    Filesize

    4KB

  • memory/5936-1-0x00000000749F0000-0x0000000074FA1000-memory.dmp

    Filesize

    5.7MB

  • memory/5936-8-0x00000000749F0000-0x0000000074FA1000-memory.dmp

    Filesize

    5.7MB

  • memory/5936-7-0x00000000749F0000-0x0000000074FA1000-memory.dmp

    Filesize

    5.7MB

  • memory/5936-6-0x00000000749F0000-0x0000000074FA1000-memory.dmp

    Filesize

    5.7MB

  • memory/5936-5-0x00000000749F0000-0x0000000074FA1000-memory.dmp

    Filesize

    5.7MB

  • memory/5936-4-0x00000000749F2000-0x00000000749F3000-memory.dmp

    Filesize

    4KB