Analysis

  • max time kernel
    154s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 19:32

General

  • Target

    d5a6bf6bd9ade7459e6035f31062330aa9c4a4fad5c522caddc37eb998e3c1c4.exe

  • Size

    208KB

  • MD5

    afd35835b446dac7153cffdfd0e48fb0

  • SHA1

    9aef34c4db3a0e7b69400acc2b6fd823c8a4242d

  • SHA256

    d5a6bf6bd9ade7459e6035f31062330aa9c4a4fad5c522caddc37eb998e3c1c4

  • SHA512

    78eaa89c4cce8ef8257b48277953276be2cafcdcb45ebac202e74cb88bece386cb6a3ef0e89763b0a7e1dd9380b9705ddd2826576e41b33bf0ea9f47b424d3b6

  • SSDEEP

    1536:Vfuxw10lxJM5y8w5OZRVmgyDl+cWaxJcveQZNTRSb3EBAR1AlQPsxjheYhpXN5yh:f0OtF2Qo7VsJgisxlYegEX0ZZbW

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • UPX packed file 16 IoCs

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

  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d5a6bf6bd9ade7459e6035f31062330aa9c4a4fad5c522caddc37eb998e3c1c4.exe
    "C:\Users\Admin\AppData\Local\Temp\d5a6bf6bd9ade7459e6035f31062330aa9c4a4fad5c522caddc37eb998e3c1c4.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1132
    • C:\Users\Admin\AppData\Local\Temp\d5a6bf6bd9ade7459e6035f31062330aa9c4a4fad5c522caddc37eb998e3c1c4.exe
      "C:\Users\Admin\AppData\Local\Temp\d5a6bf6bd9ade7459e6035f31062330aa9c4a4fad5c522caddc37eb998e3c1c4.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1932
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\PUABH.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2032
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "svhust" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe" /f
          4⤵
          • Adds Run key to start application
          PID:2000
      • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
        "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:908
        • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
          "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1488
        • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
          "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in System32 directory
          • Suspicious use of FindShellTrayWindow
          PID:824

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\PUABH.bat
    Filesize

    141B

    MD5

    e83a2e0b3c1e03dfb96ffd9924117a45

    SHA1

    27a3e4ba115ba1bad0bf094f5b97e768d1ece33e

    SHA256

    655407d94fff9e707712a588d97a2017cc1c9d690a67c688ed0abcb79e452b13

    SHA512

    5f61686a3b7db3544d83a4f2ce1a75868c7dc266709f72a34eafecc3a26696a985b1912a559aed8f5a2cacbfe26be9beae2374340d1801bb18473de785557480

  • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    116e820d86448b7f4a5424ea766ec41d

    SHA1

    5e7774a4e14c529125050c583823116cc43a9c7a

    SHA256

    d952aea80cf6f4d3272cb5c1a13520d03e590c392da8d0ffa869e139c33f7858

    SHA512

    75a3b3d934d18a2cc772c67a567eac372d1b9222983ac132fdf407572188a257b25639cfe9d62805cb64eabf9fbbebb10df29a96e54fec293968868de8175a4a

  • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    116e820d86448b7f4a5424ea766ec41d

    SHA1

    5e7774a4e14c529125050c583823116cc43a9c7a

    SHA256

    d952aea80cf6f4d3272cb5c1a13520d03e590c392da8d0ffa869e139c33f7858

    SHA512

    75a3b3d934d18a2cc772c67a567eac372d1b9222983ac132fdf407572188a257b25639cfe9d62805cb64eabf9fbbebb10df29a96e54fec293968868de8175a4a

  • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    116e820d86448b7f4a5424ea766ec41d

    SHA1

    5e7774a4e14c529125050c583823116cc43a9c7a

    SHA256

    d952aea80cf6f4d3272cb5c1a13520d03e590c392da8d0ffa869e139c33f7858

    SHA512

    75a3b3d934d18a2cc772c67a567eac372d1b9222983ac132fdf407572188a257b25639cfe9d62805cb64eabf9fbbebb10df29a96e54fec293968868de8175a4a

  • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    116e820d86448b7f4a5424ea766ec41d

    SHA1

    5e7774a4e14c529125050c583823116cc43a9c7a

    SHA256

    d952aea80cf6f4d3272cb5c1a13520d03e590c392da8d0ffa869e139c33f7858

    SHA512

    75a3b3d934d18a2cc772c67a567eac372d1b9222983ac132fdf407572188a257b25639cfe9d62805cb64eabf9fbbebb10df29a96e54fec293968868de8175a4a

  • \Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    116e820d86448b7f4a5424ea766ec41d

    SHA1

    5e7774a4e14c529125050c583823116cc43a9c7a

    SHA256

    d952aea80cf6f4d3272cb5c1a13520d03e590c392da8d0ffa869e139c33f7858

    SHA512

    75a3b3d934d18a2cc772c67a567eac372d1b9222983ac132fdf407572188a257b25639cfe9d62805cb64eabf9fbbebb10df29a96e54fec293968868de8175a4a

  • \Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    116e820d86448b7f4a5424ea766ec41d

    SHA1

    5e7774a4e14c529125050c583823116cc43a9c7a

    SHA256

    d952aea80cf6f4d3272cb5c1a13520d03e590c392da8d0ffa869e139c33f7858

    SHA512

    75a3b3d934d18a2cc772c67a567eac372d1b9222983ac132fdf407572188a257b25639cfe9d62805cb64eabf9fbbebb10df29a96e54fec293968868de8175a4a

  • \Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    116e820d86448b7f4a5424ea766ec41d

    SHA1

    5e7774a4e14c529125050c583823116cc43a9c7a

    SHA256

    d952aea80cf6f4d3272cb5c1a13520d03e590c392da8d0ffa869e139c33f7858

    SHA512

    75a3b3d934d18a2cc772c67a567eac372d1b9222983ac132fdf407572188a257b25639cfe9d62805cb64eabf9fbbebb10df29a96e54fec293968868de8175a4a

  • \Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    116e820d86448b7f4a5424ea766ec41d

    SHA1

    5e7774a4e14c529125050c583823116cc43a9c7a

    SHA256

    d952aea80cf6f4d3272cb5c1a13520d03e590c392da8d0ffa869e139c33f7858

    SHA512

    75a3b3d934d18a2cc772c67a567eac372d1b9222983ac132fdf407572188a257b25639cfe9d62805cb64eabf9fbbebb10df29a96e54fec293968868de8175a4a

  • memory/824-113-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/824-99-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/824-108-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/824-107-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/824-110-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/824-95-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/824-93-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/824-101-0x0000000000476940-mapping.dmp
  • memory/824-109-0x0000000074821000-0x0000000074823000-memory.dmp
    Filesize

    8KB

  • memory/824-98-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/908-78-0x0000000000000000-mapping.dmp
  • memory/908-82-0x00000000008DD000-0x00000000008F2000-memory.dmp
    Filesize

    84KB

  • memory/1132-56-0x000000000060D000-0x0000000000623000-memory.dmp
    Filesize

    88KB

  • memory/1488-90-0x00000000004085D0-mapping.dmp
  • memory/1488-114-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1488-111-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1932-63-0x00000000004085D0-mapping.dmp
  • memory/1932-66-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1932-58-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1932-59-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1932-105-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1932-61-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1932-70-0x0000000075FB1000-0x0000000075FB3000-memory.dmp
    Filesize

    8KB

  • memory/1932-69-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1932-65-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1932-62-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2000-73-0x0000000000000000-mapping.dmp
  • memory/2032-71-0x0000000000000000-mapping.dmp