Analysis

  • max time kernel
    150s
  • max time network
    95s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    07-11-2022 16:08

General

  • Target

    a448d3517a18f7e76d1f3fb3cc3548c0d0e45ce275a26065d1d6676face57c3d.exe

  • Size

    160KB

  • MD5

    06b1e92cb285460afb3cb7452caa6821

  • SHA1

    e97c76bb84dfeb8dc1d8e4c906816ca6bb4cb1cf

  • SHA256

    a448d3517a18f7e76d1f3fb3cc3548c0d0e45ce275a26065d1d6676face57c3d

  • SHA512

    3772073e7406003ae7639de0d82f20ce6411d23df4d315532e21ed7bc4f9d993aa7e1b1ce43bbdb783972ea4e141bce1d7986b584ef255a439582d8bcbaef293

  • 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\a448d3517a18f7e76d1f3fb3cc3548c0d0e45ce275a26065d1d6676face57c3d.exe
    "C:\Users\Admin\AppData\Local\Temp\a448d3517a18f7e76d1f3fb3cc3548c0d0e45ce275a26065d1d6676face57c3d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:620
    • C:\Users\Admin\AppData\Local\Temp\a448d3517a18f7e76d1f3fb3cc3548c0d0e45ce275a26065d1d6676face57c3d.exe
      "C:\Users\Admin\AppData\Local\Temp\a448d3517a18f7e76d1f3fb3cc3548c0d0e45ce275a26065d1d6676face57c3d.exe"
      2⤵
      • Loads dropped DLL
      • Checks whether UAC is enabled
      • Drops file in Windows directory
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1188
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\GJVWE.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:660
        • 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:1256
      • 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:1748
        • 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:828
        • 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:1536
          • 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:1352

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    124B

    MD5

    4e6e99d38b1264af2b53a68c7cd6d648

    SHA1

    55ffe17732d1d9c539d702a1311ef9674fe7b3cf

    SHA256

    168d9cdf4849fde3b4817db207e60934b6c877be439289f3fb3a4eb9e4326ff0

    SHA512

    bde21abed1bfc3dbdd6afc83614aa27c3f33dfbb434e139523ac57ecd84875b0e96a241f5828eda0b055f787ec7f95850b0f4ab0ee752ac36484b2bfd78a859d

  • C:\Windows\xplorer\xplorer.exe

    Filesize

    160KB

    MD5

    ea506c64469b609ced7d97027333bcc4

    SHA1

    1063d61e1a9001aa6a9b0e3585e9984ed402c550

    SHA256

    ea0a25638742f60ee95898347ec5a033ddbe8393caf1806e0edfae04c0cbb5b0

    SHA512

    deb3cd5fd4d20898d0233b90b3b3dca50f03c2e83816035c65e3e37ea34ebc63c07d3ed20877a95ad7079868edb04f3c723e729944ece311b0148310bcd26f93

  • C:\Windows\xplorer\xplorer.exe

    Filesize

    160KB

    MD5

    ea506c64469b609ced7d97027333bcc4

    SHA1

    1063d61e1a9001aa6a9b0e3585e9984ed402c550

    SHA256

    ea0a25638742f60ee95898347ec5a033ddbe8393caf1806e0edfae04c0cbb5b0

    SHA512

    deb3cd5fd4d20898d0233b90b3b3dca50f03c2e83816035c65e3e37ea34ebc63c07d3ed20877a95ad7079868edb04f3c723e729944ece311b0148310bcd26f93

  • C:\Windows\xplorer\xplorer.exe

    Filesize

    160KB

    MD5

    ea506c64469b609ced7d97027333bcc4

    SHA1

    1063d61e1a9001aa6a9b0e3585e9984ed402c550

    SHA256

    ea0a25638742f60ee95898347ec5a033ddbe8393caf1806e0edfae04c0cbb5b0

    SHA512

    deb3cd5fd4d20898d0233b90b3b3dca50f03c2e83816035c65e3e37ea34ebc63c07d3ed20877a95ad7079868edb04f3c723e729944ece311b0148310bcd26f93

  • C:\Windows\xplorer\xplorer.exe

    Filesize

    160KB

    MD5

    ea506c64469b609ced7d97027333bcc4

    SHA1

    1063d61e1a9001aa6a9b0e3585e9984ed402c550

    SHA256

    ea0a25638742f60ee95898347ec5a033ddbe8393caf1806e0edfae04c0cbb5b0

    SHA512

    deb3cd5fd4d20898d0233b90b3b3dca50f03c2e83816035c65e3e37ea34ebc63c07d3ed20877a95ad7079868edb04f3c723e729944ece311b0148310bcd26f93

  • \Windows\xplorer\xplorer.exe

    Filesize

    160KB

    MD5

    ea506c64469b609ced7d97027333bcc4

    SHA1

    1063d61e1a9001aa6a9b0e3585e9984ed402c550

    SHA256

    ea0a25638742f60ee95898347ec5a033ddbe8393caf1806e0edfae04c0cbb5b0

    SHA512

    deb3cd5fd4d20898d0233b90b3b3dca50f03c2e83816035c65e3e37ea34ebc63c07d3ed20877a95ad7079868edb04f3c723e729944ece311b0148310bcd26f93

  • \Windows\xplorer\xplorer.exe

    Filesize

    160KB

    MD5

    ea506c64469b609ced7d97027333bcc4

    SHA1

    1063d61e1a9001aa6a9b0e3585e9984ed402c550

    SHA256

    ea0a25638742f60ee95898347ec5a033ddbe8393caf1806e0edfae04c0cbb5b0

    SHA512

    deb3cd5fd4d20898d0233b90b3b3dca50f03c2e83816035c65e3e37ea34ebc63c07d3ed20877a95ad7079868edb04f3c723e729944ece311b0148310bcd26f93

  • \Windows\xplorer\xplorer.exe

    Filesize

    160KB

    MD5

    ea506c64469b609ced7d97027333bcc4

    SHA1

    1063d61e1a9001aa6a9b0e3585e9984ed402c550

    SHA256

    ea0a25638742f60ee95898347ec5a033ddbe8393caf1806e0edfae04c0cbb5b0

    SHA512

    deb3cd5fd4d20898d0233b90b3b3dca50f03c2e83816035c65e3e37ea34ebc63c07d3ed20877a95ad7079868edb04f3c723e729944ece311b0148310bcd26f93

  • \Windows\xplorer\xplorer.exe

    Filesize

    160KB

    MD5

    ea506c64469b609ced7d97027333bcc4

    SHA1

    1063d61e1a9001aa6a9b0e3585e9984ed402c550

    SHA256

    ea0a25638742f60ee95898347ec5a033ddbe8393caf1806e0edfae04c0cbb5b0

    SHA512

    deb3cd5fd4d20898d0233b90b3b3dca50f03c2e83816035c65e3e37ea34ebc63c07d3ed20877a95ad7079868edb04f3c723e729944ece311b0148310bcd26f93

  • memory/660-69-0x0000000000000000-mapping.dmp

  • memory/828-86-0x00000000004085D0-mapping.dmp

  • memory/828-100-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/828-107-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1188-68-0x0000000075711000-0x0000000075713000-memory.dmp

    Filesize

    8KB

  • memory/1188-60-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1188-56-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1188-67-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1188-64-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1188-63-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1188-57-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1188-61-0x00000000004085D0-mapping.dmp

  • memory/1188-59-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1188-99-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1256-71-0x0000000000000000-mapping.dmp

  • memory/1352-102-0x0000000000000000-mapping.dmp

  • memory/1352-104-0x0000000000600000-0x0000000000608000-memory.dmp

    Filesize

    32KB

  • memory/1352-105-0x0000000000080000-0x0000000000085000-memory.dmp

    Filesize

    20KB

  • memory/1352-106-0x0000000000020000-0x0000000000025000-memory.dmp

    Filesize

    20KB

  • memory/1352-108-0x0000000000020000-0x0000000000025000-memory.dmp

    Filesize

    20KB

  • memory/1536-97-0x000000000040141C-mapping.dmp

  • memory/1536-95-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/1536-91-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/1536-101-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/1536-88-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/1748-76-0x0000000000000000-mapping.dmp