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Analysis

  • max time kernel
    138s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/12/2023, 23:58

General

  • Target

    1b389f2f31906e0efefe1b92905d1016.exe

  • Size

    512KB

  • MD5

    1b389f2f31906e0efefe1b92905d1016

  • SHA1

    6e29ce4c743e3bef65a66653b2b37654e998cc59

  • SHA256

    22d43752def9631329bb7aaff47e1fc063398c240fed4f4eaf00c30ccbf065ea

  • SHA512

    421d8a3be87b9d1faa01e9f0964a3d0b1962a905bac9bbc22ce47342081eae2dc7fa350de5d8fdf10357b4203e651898e32bbe087df0eac49d5b1b152456dd0e

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4j:0+h9OY70z+warul3E4j

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 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
  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1b389f2f31906e0efefe1b92905d1016.exe
    "C:\Users\Admin\AppData\Local\Temp\1b389f2f31906e0efefe1b92905d1016.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks computer location settings
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:464
    • C:\Users\Admin\AppData\Local\Temp\n2403\s2403.exe
      "C:\Users\Admin\AppData\Local\Temp\n2403\s2403.exe" 53ca46194ef772c0ebaa1ee2UtCvLHj118X8/vKeUs+0i01DzASEG4JC6BvtnrwN4UwbQNLCasrjj/2V9bugAwQXrSkh+5dNW9txFQT6mBl5IabRB+dvppcK6rlOwegJGnArDC93ikfKDv4MawIMbzcpjXz8TCNuNup9MQu1vYiG932y /v "C:\Users\Admin\AppData\Local\Temp\1b389f2f31906e0efefe1b92905d1016.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4608

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n2403\s2403.exe

    Filesize

    118KB

    MD5

    425af1a47bd268c80074f592c9ba8574

    SHA1

    84aeecc35c65b24bb581e0605fe9146e6e86eb88

    SHA256

    29b82030c0366e82029b80305e61c7c55f32b3e3a8dd0f0480bbafdcedf29dfd

    SHA512

    c3d888b38bd9ccf09deaef64bfb11075640a759e89e6ced9bbe1f2706e7f5917e3db4fdc02e3ac619e8d4658b4ae0c936ac18dd69581c3017408f48b724782bb

  • C:\Users\Admin\AppData\Local\Temp\n2403\s2403.exe

    Filesize

    91KB

    MD5

    cbc00c0ba304d3fed2eaa132e9571b9c

    SHA1

    99726907ba39d12b2dcd3beb90d8d07573d50798

    SHA256

    f2a6c86cfeef6319c1448800259f62b9b88e02a6c0fc8bf18cacf6e9e1871d1b

    SHA512

    e1832057a2595b73f2c0c8509d8d2f08b18b5daa5a35600834cdd8d32ce5cb33d1fe1b20378bc52f62355e0a0601da37cd2f398f3a915cf49aed54aa65ac687c

  • memory/4608-13-0x00000000011A0000-0x00000000011B0000-memory.dmp

    Filesize

    64KB

  • memory/4608-12-0x00007FFB47CE0000-0x00007FFB48681000-memory.dmp

    Filesize

    9.6MB

  • memory/4608-29-0x0000000001110000-0x0000000001122000-memory.dmp

    Filesize

    72KB

  • memory/4608-33-0x000000001CB80000-0x000000001CC1C000-memory.dmp

    Filesize

    624KB

  • memory/4608-32-0x000000001C610000-0x000000001CADE000-memory.dmp

    Filesize

    4.8MB

  • memory/4608-34-0x000000001CD30000-0x000000001CD92000-memory.dmp

    Filesize

    392KB

  • memory/4608-35-0x00000000011A0000-0x00000000011B0000-memory.dmp

    Filesize

    64KB

  • memory/4608-36-0x0000000001150000-0x0000000001158000-memory.dmp

    Filesize

    32KB

  • memory/4608-38-0x00000000011A0000-0x00000000011B0000-memory.dmp

    Filesize

    64KB

  • memory/4608-37-0x00000000011A0000-0x00000000011B0000-memory.dmp

    Filesize

    64KB

  • memory/4608-40-0x00000000011A0000-0x00000000011B0000-memory.dmp

    Filesize

    64KB

  • memory/4608-39-0x00000000011A0000-0x00000000011B0000-memory.dmp

    Filesize

    64KB

  • memory/4608-41-0x00000000207C0000-0x0000000020CCE000-memory.dmp

    Filesize

    5.1MB

  • memory/4608-42-0x000000001E330000-0x000000001E46C000-memory.dmp

    Filesize

    1.2MB

  • memory/4608-44-0x00000000011A0000-0x00000000011B0000-memory.dmp

    Filesize

    64KB

  • memory/4608-43-0x00007FFB47CE0000-0x00007FFB48681000-memory.dmp

    Filesize

    9.6MB

  • memory/4608-46-0x00007FFB47CE0000-0x00007FFB48681000-memory.dmp

    Filesize

    9.6MB