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Analysis

  • max time kernel
    153s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02/10/2022, 16:00

General

  • Target

    1d84e8f21ed6460ddd8a69811d481eed48d27c5dc934c63d22f5f6d8167c130b.exe

  • Size

    646KB

  • MD5

    016cc5c921eb0d1101395025d7c0c505

  • SHA1

    98b47c84aea06e1443c396eb1b7d33e331ca6749

  • SHA256

    1d84e8f21ed6460ddd8a69811d481eed48d27c5dc934c63d22f5f6d8167c130b

  • SHA512

    31d4bdba2d2ca5c7ba12b8e4db1c9d8ba9bb4ce600aa1c84968f85186f0b44eea74f7c606e620f70137498c9f018102094a8f216eb9bb18b1040064a085aec5c

  • SSDEEP

    12288:k/dr9yql7Xa+mO0FKUDTtMi1NzW/DaRMvNXx265syu4MrZ:kl8qNKyUdMONUzeosyu4M

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 4 IoCs
  • UPX packed file 8 IoCs

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

  • Loads dropped DLL 8 IoCs
  • Adds Run key to start application 2 TTPs 29 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 33 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1d84e8f21ed6460ddd8a69811d481eed48d27c5dc934c63d22f5f6d8167c130b.exe
    "C:\Users\Admin\AppData\Local\Temp\1d84e8f21ed6460ddd8a69811d481eed48d27c5dc934c63d22f5f6d8167c130b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:548
    • C:\Users\Admin\AppData\Local\Temp\1d84e8f21ed6460ddd8a69811d481eed48d27c5dc934c63d22f5f6d8167c130b.exe
      1d84e8f21ed6460ddd8a69811d481eed48d27c5dc934c63d22f5f6d8167c130b.exe
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1696
      • C:\Users\Admin\g6NuH2.exe
        C:\Users\Admin\g6NuH2.exe
        3⤵
        • Modifies visiblity of hidden/system files in Explorer
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1292
        • C:\Users\Admin\buzaj.exe
          "C:\Users\Admin\buzaj.exe"
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1784
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c tasklist&&del g6NuH2.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1708
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            5⤵
            • Enumerates processes with tasklist
            • Suspicious use of AdjustPrivilegeToken
            PID:1604
      • C:\Users\Admin\adhost.exe
        C:\Users\Admin\adhost.exe
        3⤵
        • Executes dropped EXE
        PID:1324
      • C:\Users\Admin\bdhost.exe
        C:\Users\Admin\bdhost.exe
        3⤵
        • Executes dropped EXE
        PID:2000

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\adhost.exe

    Filesize

    172KB

    MD5

    36fa3dbb1702552896cc677b5bda52dc

    SHA1

    c87f2707913047dcd2a896896fe2905b08c33985

    SHA256

    e8a3a99554c8aea64d2afa291655795896fbc14d053d3d29178c3536eee39f74

    SHA512

    9ace90bd8e81b507d2db75a493554b4a676730271883976033e4025dc6d19250070b6fd8825905e2aeea213bfc271e5d2c43a2eeca86bce0b3db497801731c53

  • C:\Users\Admin\bdhost.exe

    Filesize

    174KB

    MD5

    f3e286f3fc9467d3b9e56d41038b17d5

    SHA1

    3653c381586b01016a56de58d59300e431368162

    SHA256

    ec735fb26d310b803d6c4370b7cdd2a4e0f100dc442d0545f3742b3b48da5f3f

    SHA512

    0ba3b50c8dbce8da4f3a312a8f57375b102dcc7348485300b1d65fec3b6f55f62eb54e8252ddd4d73620442813731f7bfceb84c122c07a778afde76d8a642e2d

  • C:\Users\Admin\buzaj.exe

    Filesize

    256KB

    MD5

    8fc9b60b2684d19c5b615ca02dddd6cc

    SHA1

    af902328a9b13ecde2333bdad96f1bb6d00186cb

    SHA256

    d4d0233958d7a2903abf93ecf882e2b22d203fe69d07214c452f9ca0c04fecda

    SHA512

    5354b8ec6aacf41c26a0731b6475c40ed201e1c7f1965b24ad2f8b90f8700780ff0b7d33d02bc6cfd19d459ab07d9cc44d0bb244e77621df33dcb785e9eda419

  • C:\Users\Admin\buzaj.exe

    Filesize

    256KB

    MD5

    8fc9b60b2684d19c5b615ca02dddd6cc

    SHA1

    af902328a9b13ecde2333bdad96f1bb6d00186cb

    SHA256

    d4d0233958d7a2903abf93ecf882e2b22d203fe69d07214c452f9ca0c04fecda

    SHA512

    5354b8ec6aacf41c26a0731b6475c40ed201e1c7f1965b24ad2f8b90f8700780ff0b7d33d02bc6cfd19d459ab07d9cc44d0bb244e77621df33dcb785e9eda419

  • C:\Users\Admin\g6NuH2.exe

    Filesize

    256KB

    MD5

    be8379280ac23f08b8b091e1bc345eae

    SHA1

    bb432b69277aec39e5566ec120d6fd8fe4e0097b

    SHA256

    caf1a47f843337e61a31e6faf6745bd9fd70e14af77f171c8764ea9d2fbe9dc5

    SHA512

    d5a26da6a5ded9961cc995a8f6e53b9a97d95330654a1e1e588ddcabcf4d058fe527b1d68de057b8b73be49f4bcb64b58db229a2007c9eb5858a7f1d81ddd215

  • C:\Users\Admin\g6NuH2.exe

    Filesize

    256KB

    MD5

    be8379280ac23f08b8b091e1bc345eae

    SHA1

    bb432b69277aec39e5566ec120d6fd8fe4e0097b

    SHA256

    caf1a47f843337e61a31e6faf6745bd9fd70e14af77f171c8764ea9d2fbe9dc5

    SHA512

    d5a26da6a5ded9961cc995a8f6e53b9a97d95330654a1e1e588ddcabcf4d058fe527b1d68de057b8b73be49f4bcb64b58db229a2007c9eb5858a7f1d81ddd215

  • \Users\Admin\adhost.exe

    Filesize

    172KB

    MD5

    36fa3dbb1702552896cc677b5bda52dc

    SHA1

    c87f2707913047dcd2a896896fe2905b08c33985

    SHA256

    e8a3a99554c8aea64d2afa291655795896fbc14d053d3d29178c3536eee39f74

    SHA512

    9ace90bd8e81b507d2db75a493554b4a676730271883976033e4025dc6d19250070b6fd8825905e2aeea213bfc271e5d2c43a2eeca86bce0b3db497801731c53

  • \Users\Admin\adhost.exe

    Filesize

    172KB

    MD5

    36fa3dbb1702552896cc677b5bda52dc

    SHA1

    c87f2707913047dcd2a896896fe2905b08c33985

    SHA256

    e8a3a99554c8aea64d2afa291655795896fbc14d053d3d29178c3536eee39f74

    SHA512

    9ace90bd8e81b507d2db75a493554b4a676730271883976033e4025dc6d19250070b6fd8825905e2aeea213bfc271e5d2c43a2eeca86bce0b3db497801731c53

  • \Users\Admin\bdhost.exe

    Filesize

    174KB

    MD5

    f3e286f3fc9467d3b9e56d41038b17d5

    SHA1

    3653c381586b01016a56de58d59300e431368162

    SHA256

    ec735fb26d310b803d6c4370b7cdd2a4e0f100dc442d0545f3742b3b48da5f3f

    SHA512

    0ba3b50c8dbce8da4f3a312a8f57375b102dcc7348485300b1d65fec3b6f55f62eb54e8252ddd4d73620442813731f7bfceb84c122c07a778afde76d8a642e2d

  • \Users\Admin\bdhost.exe

    Filesize

    174KB

    MD5

    f3e286f3fc9467d3b9e56d41038b17d5

    SHA1

    3653c381586b01016a56de58d59300e431368162

    SHA256

    ec735fb26d310b803d6c4370b7cdd2a4e0f100dc442d0545f3742b3b48da5f3f

    SHA512

    0ba3b50c8dbce8da4f3a312a8f57375b102dcc7348485300b1d65fec3b6f55f62eb54e8252ddd4d73620442813731f7bfceb84c122c07a778afde76d8a642e2d

  • \Users\Admin\buzaj.exe

    Filesize

    256KB

    MD5

    8fc9b60b2684d19c5b615ca02dddd6cc

    SHA1

    af902328a9b13ecde2333bdad96f1bb6d00186cb

    SHA256

    d4d0233958d7a2903abf93ecf882e2b22d203fe69d07214c452f9ca0c04fecda

    SHA512

    5354b8ec6aacf41c26a0731b6475c40ed201e1c7f1965b24ad2f8b90f8700780ff0b7d33d02bc6cfd19d459ab07d9cc44d0bb244e77621df33dcb785e9eda419

  • \Users\Admin\buzaj.exe

    Filesize

    256KB

    MD5

    8fc9b60b2684d19c5b615ca02dddd6cc

    SHA1

    af902328a9b13ecde2333bdad96f1bb6d00186cb

    SHA256

    d4d0233958d7a2903abf93ecf882e2b22d203fe69d07214c452f9ca0c04fecda

    SHA512

    5354b8ec6aacf41c26a0731b6475c40ed201e1c7f1965b24ad2f8b90f8700780ff0b7d33d02bc6cfd19d459ab07d9cc44d0bb244e77621df33dcb785e9eda419

  • \Users\Admin\g6NuH2.exe

    Filesize

    256KB

    MD5

    be8379280ac23f08b8b091e1bc345eae

    SHA1

    bb432b69277aec39e5566ec120d6fd8fe4e0097b

    SHA256

    caf1a47f843337e61a31e6faf6745bd9fd70e14af77f171c8764ea9d2fbe9dc5

    SHA512

    d5a26da6a5ded9961cc995a8f6e53b9a97d95330654a1e1e588ddcabcf4d058fe527b1d68de057b8b73be49f4bcb64b58db229a2007c9eb5858a7f1d81ddd215

  • \Users\Admin\g6NuH2.exe

    Filesize

    256KB

    MD5

    be8379280ac23f08b8b091e1bc345eae

    SHA1

    bb432b69277aec39e5566ec120d6fd8fe4e0097b

    SHA256

    caf1a47f843337e61a31e6faf6745bd9fd70e14af77f171c8764ea9d2fbe9dc5

    SHA512

    d5a26da6a5ded9961cc995a8f6e53b9a97d95330654a1e1e588ddcabcf4d058fe527b1d68de057b8b73be49f4bcb64b58db229a2007c9eb5858a7f1d81ddd215

  • memory/1696-60-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/1696-54-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/1696-68-0x0000000076171000-0x0000000076173000-memory.dmp

    Filesize

    8KB

  • memory/1696-65-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/1696-64-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/1696-69-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/1696-55-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/1696-57-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/1696-93-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/2000-99-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/2000-100-0x000000000053F000-0x0000000000559000-memory.dmp

    Filesize

    104KB