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Analysis

  • max time kernel
    119s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/09/2024, 01:44

General

  • Target

    bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784N.exe

  • Size

    514KB

  • MD5

    dc53d3f643ba19a1c7967cc380660640

  • SHA1

    149b6e91d5039c843903765cc4e9f4b2b334559a

  • SHA256

    bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784

  • SHA512

    8b03d73a7d9d99235679087d9d5f1e0c50448454d847421f4b860f57c26b2b0a6460c415dcf340a3d4bd08b5e63ef6a51199cad737e1ed215f96a883514be66f

  • SSDEEP

    12288:l/lc87eqqV5e+wBV6O+NXJzwByDZJtwuSdd8wfG68XimP:l/SqqHeVBx4XJ0kxtSPJJKimP

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • 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: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of UnmapMainImage
    PID:3360
    • C:\Users\Admin\AppData\Local\Temp\bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784N.exe
      "C:\Users\Admin\AppData\Local\Temp\bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784N.exe"
      2⤵
      • Adds Run key to start application
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1684
      • C:\Users\Admin\AppData\Roaming\ByteHost\iscsHost.exe
        "C:\Users\Admin\AppData\Roaming\ByteHost"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:412
        • C:\Users\Admin\AppData\Local\Temp\~D07F.tmp
          3360 526856 412 1
          4⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:3188
  • C:\Windows\SysWOW64\hhll32.exe
    C:\Windows\SysWOW64\hhll32.exe -s
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2412

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\~D07F.tmp

    Filesize

    8KB

    MD5

    86dc243576cf5c7445451af37631eea9

    SHA1

    99a81c47c4c02f32c0ab456bfa23c306c7a09bf9

    SHA256

    25d2a671e1b5b5b95697ac0234ce4d46e0d0894919521b54aabebd9daecf994a

    SHA512

    c7310524f9b65f811146c1eb6ae944966351ac88a95fbc1ac422d8810730e5e212a7e28090ad758ea23c96ba38073e7fcf42460575e7f09dbc759a45c5d5a4a4

  • C:\Users\Admin\AppData\Roaming\ByteHost\iscsHost.exe

    Filesize

    514KB

    MD5

    e2b85841c24981741bb70cfb739be35d

    SHA1

    c42c168936c4994eed0afe7aceae50b494db1a92

    SHA256

    90e4710435fffe6693af8abe20ea458ed3c2322b0f4f9d984fb3ee5e82bd974d

    SHA512

    8bf1b5b67143fe16586e5277f2a570b84d7708ca06d858f566dd78c10eea1ce9e9fbc215aba782a722245fb908328fe528f786fa839af94fa1ab16246103cb4b

  • memory/412-29-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/412-12-0x0000000000540000-0x00000000005C9000-memory.dmp

    Filesize

    548KB

  • memory/412-6-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/412-13-0x00000000008F0000-0x00000000008F5000-memory.dmp

    Filesize

    20KB

  • memory/1684-28-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/1684-0-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/1684-1-0x0000000000730000-0x00000000007B9000-memory.dmp

    Filesize

    548KB

  • memory/2412-15-0x0000000000660000-0x00000000006E9000-memory.dmp

    Filesize

    548KB

  • memory/2412-14-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/3360-26-0x0000000002F20000-0x0000000002F2D000-memory.dmp

    Filesize

    52KB

  • memory/3360-25-0x00000000013C0000-0x00000000013C6000-memory.dmp

    Filesize

    24KB

  • memory/3360-18-0x00000000034A0000-0x0000000003530000-memory.dmp

    Filesize

    576KB

  • memory/3360-27-0x00000000034A0000-0x0000000003530000-memory.dmp

    Filesize

    576KB