Analysis

  • max time kernel
    100s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    19/09/2022, 02:17

General

  • Target

    c6d893067a788a46a07d631e48798baff420430ebc097981aaa3a09bd63965bb.exe

  • Size

    129KB

  • MD5

    98c2327ab98096861171ae4f6846e662

  • SHA1

    692aebee9149cf25b70da842456c16b3e5553085

  • SHA256

    c6d893067a788a46a07d631e48798baff420430ebc097981aaa3a09bd63965bb

  • SHA512

    73d38d5c268533d3e0a3b3feb2ea091da81e6ba29231da23a0f0db11185cc8aa40984b1d788e1a2dd5ae8c30f47eeff36180d74bc16cf9f4dd86367a4c0b9215

  • SSDEEP

    3072:zQIURTXJcuFxM//D/IiIQirww/lRN58TuNVHjdZYXLSd:zsW+x+IiIAwNRgTYVDdz

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 11 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 14 IoCs
  • Modifies Internet Explorer settings 1 TTPs 34 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c6d893067a788a46a07d631e48798baff420430ebc097981aaa3a09bd63965bb.exe
    "C:\Users\Admin\AppData\Local\Temp\c6d893067a788a46a07d631e48798baff420430ebc097981aaa3a09bd63965bb.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1288
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\foxdown.jse"
      2⤵
      • Blocklisted process makes network request
      • Suspicious use of WriteProcessMemory
      PID:1332
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" http://down.tian-kong.com/install/meng.html
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:564
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:564 CREDAT:275457 /prefetch:2
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:1228
    • C:\Users\Admin\AppData\Local\Temp\undelfile.exe
      "C:\Users\Admin\AppData\Local\Temp\undelfile.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1824
      • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
        "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
        3⤵
        • Executes dropped EXE
        • Deletes itself
        • Loads dropped DLL
        PID:856

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\foxdown.jse

          Filesize

          1KB

          MD5

          46af444b9c8ddbab7589329d5b0c4616

          SHA1

          14fa83ff4953caddb31d8a1d81530b2d3b871952

          SHA256

          43df685ccd1200455dcf56b0c7fe313e3b8c563bde078896b9cb61ac10576ac9

          SHA512

          e3a5d6251e766f3e6bc80756ed93b6caf090d937490847a20466baca3341d1d9444dec928e8c7498ef19d69f4b3a05c8d79370b5db1aaba13cf1a438395b43df

        • C:\Users\Admin\AppData\Local\Temp\temp.ini

          Filesize

          126B

          MD5

          5525e101f29aa9c294f2015de4f4c807

          SHA1

          1e61346677e6b4628162caf056ff4dd703c7a409

          SHA256

          dfc7656c3360840b2e5e2081c2f70f1d56bf19bc14472672997db4390e2dc416

          SHA512

          ed79873415a13f658b42a3f6666d5ef88047b5051ac4db0587378514394711b84e9d0d36b5125f2144953b7cd0114f24b709ce8a353c6ec6b1ceb0bd326bfa96

        • C:\Users\Admin\AppData\Local\Temp\undelfile.exe

          Filesize

          40KB

          MD5

          fa1289433a5aec7b67c5c567c560017f

          SHA1

          3ce0ea5534516dc56243de2550ab250971db01c1

          SHA256

          02ffd75facf27ff64a52611e06d4108e8ff172f3c889b96887f243b084c4c3c3

          SHA512

          535fe49c975bf44f265ebee0c0c24725453ea43eec287b719b5538829c70e0b29c632c6aa0cb01244a73bcdbe50570824ccc85d01c8e3a04dc5dcdd6072563dd

        • C:\Users\Admin\AppData\Local\Temp\undelfile.exe

          Filesize

          40KB

          MD5

          fa1289433a5aec7b67c5c567c560017f

          SHA1

          3ce0ea5534516dc56243de2550ab250971db01c1

          SHA256

          02ffd75facf27ff64a52611e06d4108e8ff172f3c889b96887f243b084c4c3c3

          SHA512

          535fe49c975bf44f265ebee0c0c24725453ea43eec287b719b5538829c70e0b29c632c6aa0cb01244a73bcdbe50570824ccc85d01c8e3a04dc5dcdd6072563dd

        • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          40KB

          MD5

          fa1289433a5aec7b67c5c567c560017f

          SHA1

          3ce0ea5534516dc56243de2550ab250971db01c1

          SHA256

          02ffd75facf27ff64a52611e06d4108e8ff172f3c889b96887f243b084c4c3c3

          SHA512

          535fe49c975bf44f265ebee0c0c24725453ea43eec287b719b5538829c70e0b29c632c6aa0cb01244a73bcdbe50570824ccc85d01c8e3a04dc5dcdd6072563dd

        • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          40KB

          MD5

          fa1289433a5aec7b67c5c567c560017f

          SHA1

          3ce0ea5534516dc56243de2550ab250971db01c1

          SHA256

          02ffd75facf27ff64a52611e06d4108e8ff172f3c889b96887f243b084c4c3c3

          SHA512

          535fe49c975bf44f265ebee0c0c24725453ea43eec287b719b5538829c70e0b29c632c6aa0cb01244a73bcdbe50570824ccc85d01c8e3a04dc5dcdd6072563dd

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\TH7OLVBA.txt

          Filesize

          608B

          MD5

          07b795935684c6bb8813580ecdc51e33

          SHA1

          c14d09bf4dd8e27254a4b37cd496b64e764202d4

          SHA256

          cabd0716926b69614c3b47721ff3bbb3d6dc1cb38ff7bf60a2f28f91146d6055

          SHA512

          d7c531f7342e4c7ec4dcf1670abcf0d6c6d5ff667f476d3244a110f1aeab03b7be2e3e30ae38697c3620b03f935eee5848423b08a30ed9d2af6cbcf4b9c6dfa4

        • \Users\Admin\AppData\Local\Temp\nst18D1.tmp\System.dll

          Filesize

          11KB

          MD5

          c17103ae9072a06da581dec998343fc1

          SHA1

          b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

          SHA256

          dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

          SHA512

          d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

        • \Users\Admin\AppData\Local\Temp\undelfile.exe

          Filesize

          40KB

          MD5

          fa1289433a5aec7b67c5c567c560017f

          SHA1

          3ce0ea5534516dc56243de2550ab250971db01c1

          SHA256

          02ffd75facf27ff64a52611e06d4108e8ff172f3c889b96887f243b084c4c3c3

          SHA512

          535fe49c975bf44f265ebee0c0c24725453ea43eec287b719b5538829c70e0b29c632c6aa0cb01244a73bcdbe50570824ccc85d01c8e3a04dc5dcdd6072563dd

        • \Users\Admin\AppData\Local\Temp\undelfile.exe

          Filesize

          40KB

          MD5

          fa1289433a5aec7b67c5c567c560017f

          SHA1

          3ce0ea5534516dc56243de2550ab250971db01c1

          SHA256

          02ffd75facf27ff64a52611e06d4108e8ff172f3c889b96887f243b084c4c3c3

          SHA512

          535fe49c975bf44f265ebee0c0c24725453ea43eec287b719b5538829c70e0b29c632c6aa0cb01244a73bcdbe50570824ccc85d01c8e3a04dc5dcdd6072563dd

        • \Users\Admin\AppData\Local\Temp\undelfile.exe

          Filesize

          40KB

          MD5

          fa1289433a5aec7b67c5c567c560017f

          SHA1

          3ce0ea5534516dc56243de2550ab250971db01c1

          SHA256

          02ffd75facf27ff64a52611e06d4108e8ff172f3c889b96887f243b084c4c3c3

          SHA512

          535fe49c975bf44f265ebee0c0c24725453ea43eec287b719b5538829c70e0b29c632c6aa0cb01244a73bcdbe50570824ccc85d01c8e3a04dc5dcdd6072563dd

        • \Users\Admin\AppData\Local\Temp\undelfile.exe

          Filesize

          40KB

          MD5

          fa1289433a5aec7b67c5c567c560017f

          SHA1

          3ce0ea5534516dc56243de2550ab250971db01c1

          SHA256

          02ffd75facf27ff64a52611e06d4108e8ff172f3c889b96887f243b084c4c3c3

          SHA512

          535fe49c975bf44f265ebee0c0c24725453ea43eec287b719b5538829c70e0b29c632c6aa0cb01244a73bcdbe50570824ccc85d01c8e3a04dc5dcdd6072563dd

        • \Users\Admin\AppData\Local\Temp\undelfile.exe

          Filesize

          40KB

          MD5

          fa1289433a5aec7b67c5c567c560017f

          SHA1

          3ce0ea5534516dc56243de2550ab250971db01c1

          SHA256

          02ffd75facf27ff64a52611e06d4108e8ff172f3c889b96887f243b084c4c3c3

          SHA512

          535fe49c975bf44f265ebee0c0c24725453ea43eec287b719b5538829c70e0b29c632c6aa0cb01244a73bcdbe50570824ccc85d01c8e3a04dc5dcdd6072563dd

        • \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          40KB

          MD5

          fa1289433a5aec7b67c5c567c560017f

          SHA1

          3ce0ea5534516dc56243de2550ab250971db01c1

          SHA256

          02ffd75facf27ff64a52611e06d4108e8ff172f3c889b96887f243b084c4c3c3

          SHA512

          535fe49c975bf44f265ebee0c0c24725453ea43eec287b719b5538829c70e0b29c632c6aa0cb01244a73bcdbe50570824ccc85d01c8e3a04dc5dcdd6072563dd

        • \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          40KB

          MD5

          fa1289433a5aec7b67c5c567c560017f

          SHA1

          3ce0ea5534516dc56243de2550ab250971db01c1

          SHA256

          02ffd75facf27ff64a52611e06d4108e8ff172f3c889b96887f243b084c4c3c3

          SHA512

          535fe49c975bf44f265ebee0c0c24725453ea43eec287b719b5538829c70e0b29c632c6aa0cb01244a73bcdbe50570824ccc85d01c8e3a04dc5dcdd6072563dd

        • \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          40KB

          MD5

          fa1289433a5aec7b67c5c567c560017f

          SHA1

          3ce0ea5534516dc56243de2550ab250971db01c1

          SHA256

          02ffd75facf27ff64a52611e06d4108e8ff172f3c889b96887f243b084c4c3c3

          SHA512

          535fe49c975bf44f265ebee0c0c24725453ea43eec287b719b5538829c70e0b29c632c6aa0cb01244a73bcdbe50570824ccc85d01c8e3a04dc5dcdd6072563dd

        • \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          40KB

          MD5

          fa1289433a5aec7b67c5c567c560017f

          SHA1

          3ce0ea5534516dc56243de2550ab250971db01c1

          SHA256

          02ffd75facf27ff64a52611e06d4108e8ff172f3c889b96887f243b084c4c3c3

          SHA512

          535fe49c975bf44f265ebee0c0c24725453ea43eec287b719b5538829c70e0b29c632c6aa0cb01244a73bcdbe50570824ccc85d01c8e3a04dc5dcdd6072563dd

        • \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          40KB

          MD5

          fa1289433a5aec7b67c5c567c560017f

          SHA1

          3ce0ea5534516dc56243de2550ab250971db01c1

          SHA256

          02ffd75facf27ff64a52611e06d4108e8ff172f3c889b96887f243b084c4c3c3

          SHA512

          535fe49c975bf44f265ebee0c0c24725453ea43eec287b719b5538829c70e0b29c632c6aa0cb01244a73bcdbe50570824ccc85d01c8e3a04dc5dcdd6072563dd

        • memory/1288-54-0x00000000752B1000-0x00000000752B3000-memory.dmp

          Filesize

          8KB