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Analysis

  • max time kernel
    156s
  • max time network
    158s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    03/10/2022, 16:16

General

  • Target

    877c97b644ff93cbda33f41a20878d840e008fd4a41fa283a6897f9c5789035b.exe

  • Size

    160KB

  • MD5

    6e59fcb0c2c2a5c02daa1413f5092310

  • SHA1

    74917617ce9d83d12fc73e2ab6bbd8e2a95a7b26

  • SHA256

    877c97b644ff93cbda33f41a20878d840e008fd4a41fa283a6897f9c5789035b

  • SHA512

    ae87bda425aef19f6cc6e3004c115687da05c53f71b735eef94dbeeb8ed630133c49bc9c902e157548f6ae84cde6dc0e00d051f830c6714f0b95a625653e666a

  • SSDEEP

    1536:3+gDbKlmyJKz5jR7766dxocisPfDsCUjhe+SPBp9oEoTTLgY++++1sY+++++ZDdM:3xbkuVbvLn7Uj3

Malware Config

Signatures

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 3 IoCs
  • UPX packed file 9 IoCs

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

  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\877c97b644ff93cbda33f41a20878d840e008fd4a41fa283a6897f9c5789035b.exe
    "C:\Users\Admin\AppData\Local\Temp\877c97b644ff93cbda33f41a20878d840e008fd4a41fa283a6897f9c5789035b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Users\Admin\AppData\Local\Temp\877c97b644ff93cbda33f41a20878d840e008fd4a41fa283a6897f9c5789035b.exe
      "C:\Users\Admin\AppData\Local\Temp\877c97b644ff93cbda33f41a20878d840e008fd4a41fa283a6897f9c5789035b.exe"
      2⤵
      • Loads dropped DLL
      • Checks whether UAC is enabled
      • Drops file in Windows directory
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1168
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\SWRNO.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1700
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "xplorer" /t REG_SZ /d "C:\Windows\xplorer\xplorer.exe" /f
          4⤵
          • Adds Run key to start application
          PID:2000
      • C:\Windows\xplorer\xplorer.exe
        "C:\Windows\xplorer\xplorer.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1696
        • C:\Windows\xplorer\xplorer.exe
          "C:\Windows\xplorer\xplorer.exe"
          4⤵
          • Executes dropped EXE
          • Checks whether UAC is enabled
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1752
        • C:\Windows\xplorer\xplorer.exe
          "C:\Windows\xplorer\xplorer.exe"
          4⤵
          • Executes dropped EXE
          • Maps connected drives based on registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:1412
          • C:\Windows\syswow64\svchost.exe
            C:\Windows\syswow64\svchost.exe
            5⤵
            • Adds policy Run key to start application
            • Drops file in Program Files directory
            • Drops file in Windows directory
            PID:848

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\SWRNO.bat

    Filesize

    124B

    MD5

    4e6e99d38b1264af2b53a68c7cd6d648

    SHA1

    55ffe17732d1d9c539d702a1311ef9674fe7b3cf

    SHA256

    168d9cdf4849fde3b4817db207e60934b6c877be439289f3fb3a4eb9e4326ff0

    SHA512

    bde21abed1bfc3dbdd6afc83614aa27c3f33dfbb434e139523ac57ecd84875b0e96a241f5828eda0b055f787ec7f95850b0f4ab0ee752ac36484b2bfd78a859d

  • C:\Windows\xplorer\xplorer.exe

    Filesize

    160KB

    MD5

    1858bb3152cc09f532ecd202a5d21a02

    SHA1

    0a84be7cc8b2d79162a2ebdce5d9e2ab5ac73926

    SHA256

    39da0d798ee1bf4760a14ce07191c0c9aea2adaec251e0b558021b3ecb29e65b

    SHA512

    78e6c71210b103959250cff792b2ad640a159925caabbaddf6daf581dc34dafe5864652f4846578e9b15304cb9d62a44070b62f8f7cb566e52c076bd742c05cc

  • C:\Windows\xplorer\xplorer.exe

    Filesize

    160KB

    MD5

    1858bb3152cc09f532ecd202a5d21a02

    SHA1

    0a84be7cc8b2d79162a2ebdce5d9e2ab5ac73926

    SHA256

    39da0d798ee1bf4760a14ce07191c0c9aea2adaec251e0b558021b3ecb29e65b

    SHA512

    78e6c71210b103959250cff792b2ad640a159925caabbaddf6daf581dc34dafe5864652f4846578e9b15304cb9d62a44070b62f8f7cb566e52c076bd742c05cc

  • C:\Windows\xplorer\xplorer.exe

    Filesize

    160KB

    MD5

    1858bb3152cc09f532ecd202a5d21a02

    SHA1

    0a84be7cc8b2d79162a2ebdce5d9e2ab5ac73926

    SHA256

    39da0d798ee1bf4760a14ce07191c0c9aea2adaec251e0b558021b3ecb29e65b

    SHA512

    78e6c71210b103959250cff792b2ad640a159925caabbaddf6daf581dc34dafe5864652f4846578e9b15304cb9d62a44070b62f8f7cb566e52c076bd742c05cc

  • C:\Windows\xplorer\xplorer.exe

    Filesize

    160KB

    MD5

    1858bb3152cc09f532ecd202a5d21a02

    SHA1

    0a84be7cc8b2d79162a2ebdce5d9e2ab5ac73926

    SHA256

    39da0d798ee1bf4760a14ce07191c0c9aea2adaec251e0b558021b3ecb29e65b

    SHA512

    78e6c71210b103959250cff792b2ad640a159925caabbaddf6daf581dc34dafe5864652f4846578e9b15304cb9d62a44070b62f8f7cb566e52c076bd742c05cc

  • \Windows\xplorer\xplorer.exe

    Filesize

    160KB

    MD5

    1858bb3152cc09f532ecd202a5d21a02

    SHA1

    0a84be7cc8b2d79162a2ebdce5d9e2ab5ac73926

    SHA256

    39da0d798ee1bf4760a14ce07191c0c9aea2adaec251e0b558021b3ecb29e65b

    SHA512

    78e6c71210b103959250cff792b2ad640a159925caabbaddf6daf581dc34dafe5864652f4846578e9b15304cb9d62a44070b62f8f7cb566e52c076bd742c05cc

  • \Windows\xplorer\xplorer.exe

    Filesize

    160KB

    MD5

    1858bb3152cc09f532ecd202a5d21a02

    SHA1

    0a84be7cc8b2d79162a2ebdce5d9e2ab5ac73926

    SHA256

    39da0d798ee1bf4760a14ce07191c0c9aea2adaec251e0b558021b3ecb29e65b

    SHA512

    78e6c71210b103959250cff792b2ad640a159925caabbaddf6daf581dc34dafe5864652f4846578e9b15304cb9d62a44070b62f8f7cb566e52c076bd742c05cc

  • \Windows\xplorer\xplorer.exe

    Filesize

    160KB

    MD5

    1858bb3152cc09f532ecd202a5d21a02

    SHA1

    0a84be7cc8b2d79162a2ebdce5d9e2ab5ac73926

    SHA256

    39da0d798ee1bf4760a14ce07191c0c9aea2adaec251e0b558021b3ecb29e65b

    SHA512

    78e6c71210b103959250cff792b2ad640a159925caabbaddf6daf581dc34dafe5864652f4846578e9b15304cb9d62a44070b62f8f7cb566e52c076bd742c05cc

  • \Windows\xplorer\xplorer.exe

    Filesize

    160KB

    MD5

    1858bb3152cc09f532ecd202a5d21a02

    SHA1

    0a84be7cc8b2d79162a2ebdce5d9e2ab5ac73926

    SHA256

    39da0d798ee1bf4760a14ce07191c0c9aea2adaec251e0b558021b3ecb29e65b

    SHA512

    78e6c71210b103959250cff792b2ad640a159925caabbaddf6daf581dc34dafe5864652f4846578e9b15304cb9d62a44070b62f8f7cb566e52c076bd742c05cc

  • memory/848-103-0x0000000000080000-0x0000000000085000-memory.dmp

    Filesize

    20KB

  • memory/848-108-0x0000000000020000-0x0000000000025000-memory.dmp

    Filesize

    20KB

  • memory/848-102-0x0000000000CA0000-0x0000000000CA8000-memory.dmp

    Filesize

    32KB

  • memory/848-105-0x0000000000020000-0x0000000000025000-memory.dmp

    Filesize

    20KB

  • memory/1168-63-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1168-56-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1168-64-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1168-60-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1168-68-0x0000000075A71000-0x0000000075A73000-memory.dmp

    Filesize

    8KB

  • memory/1168-59-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1168-67-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1168-98-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1168-57-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1412-89-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/1412-93-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/1412-101-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/1412-90-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/1752-104-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1752-107-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB