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Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    05/11/2023, 12:06

General

  • Target

    1275699cf4eb00661bba626b03c76f0821aa85d991b0f128b27884f1fefd60fc.exe

  • Size

    5.6MB

  • MD5

    323b80d197856881202531163a8bb7d3

  • SHA1

    9fefa8409302a9288f7ae1d3f80ce9fed88580d5

  • SHA256

    1275699cf4eb00661bba626b03c76f0821aa85d991b0f128b27884f1fefd60fc

  • SHA512

    ce894e9dd5e5c721ab491dd7752f605eca6f6f9607721300ed65ba87dd3826a2f5aea97795c4b81188915a7eb55745cbb421228c1359ee135b7a725c92dbfd4d

  • SSDEEP

    98304:tiRmxZFsM4kxzDcT+GcY437KvDwEHuujlsaSzsC0p43MpQdZ9nc+fsCb+oSBAON6:0Rm1syxacY48eda2TMpQdZ9nc+fyhNjG

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 34 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs net.exe
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1275699cf4eb00661bba626b03c76f0821aa85d991b0f128b27884f1fefd60fc.exe
    "C:\Users\Admin\AppData\Local\Temp\1275699cf4eb00661bba626b03c76f0821aa85d991b0f128b27884f1fefd60fc.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:656
    • C:\Users\Admin\AppData\Local\Temp\is-4GO4J.tmp\is-7KA1L.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-4GO4J.tmp\is-7KA1L.tmp" /SL4 $701E4 "C:\Users\Admin\AppData\Local\Temp\1275699cf4eb00661bba626b03c76f0821aa85d991b0f128b27884f1fefd60fc.exe" 5597940 141824
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:4116
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 2
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3068
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 2
          4⤵
            PID:4344
        • C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe
          "C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe" -i
          3⤵
          • Executes dropped EXE
          PID:352
        • C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe
          "C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe" -s
          3⤵
          • Executes dropped EXE
          PID:4632

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe

      Filesize

      4.4MB

      MD5

      81bf17b6bc712eec07e481349afc3dbc

      SHA1

      eedecca191d3a6b1f16483714343fe1019d7fc62

      SHA256

      81baf334067384061f84fb8335cd811aa22984601ad103e3f575f0a5cb9a639b

      SHA512

      3aa53bfc176d2313e7a02c8f3511e1892adcacf02ee28135e5ae46b1224fdfaef6ddcba8b5f9b340c40c39d22b87d23468401df2c84ac57c57fdeabf2f302171

    • C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe

      Filesize

      4.4MB

      MD5

      81bf17b6bc712eec07e481349afc3dbc

      SHA1

      eedecca191d3a6b1f16483714343fe1019d7fc62

      SHA256

      81baf334067384061f84fb8335cd811aa22984601ad103e3f575f0a5cb9a639b

      SHA512

      3aa53bfc176d2313e7a02c8f3511e1892adcacf02ee28135e5ae46b1224fdfaef6ddcba8b5f9b340c40c39d22b87d23468401df2c84ac57c57fdeabf2f302171

    • C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe

      Filesize

      4.4MB

      MD5

      81bf17b6bc712eec07e481349afc3dbc

      SHA1

      eedecca191d3a6b1f16483714343fe1019d7fc62

      SHA256

      81baf334067384061f84fb8335cd811aa22984601ad103e3f575f0a5cb9a639b

      SHA512

      3aa53bfc176d2313e7a02c8f3511e1892adcacf02ee28135e5ae46b1224fdfaef6ddcba8b5f9b340c40c39d22b87d23468401df2c84ac57c57fdeabf2f302171

    • C:\Users\Admin\AppData\Local\Temp\is-4GO4J.tmp\is-7KA1L.tmp

      Filesize

      642KB

      MD5

      e57693101a63b1f934f462bc7a2ef093

      SHA1

      2748ea8c66b980f14c9ce36c1c3061e690cf3ce7

      SHA256

      71267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f

      SHA512

      3dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e

    • C:\Users\Admin\AppData\Local\Temp\is-4GO4J.tmp\is-7KA1L.tmp

      Filesize

      642KB

      MD5

      e57693101a63b1f934f462bc7a2ef093

      SHA1

      2748ea8c66b980f14c9ce36c1c3061e690cf3ce7

      SHA256

      71267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f

      SHA512

      3dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e

    • \Users\Admin\AppData\Local\Temp\is-FFSFC.tmp\_iscrypt.dll

      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    • memory/352-86-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/352-82-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/352-84-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/352-87-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/656-1-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/656-91-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/4116-94-0x0000000000400000-0x00000000004CF000-memory.dmp

      Filesize

      828KB

    • memory/4116-7-0x00000000001F0000-0x00000000001F1000-memory.dmp

      Filesize

      4KB

    • memory/4116-92-0x00000000001F0000-0x00000000001F1000-memory.dmp

      Filesize

      4KB

    • memory/4632-95-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4632-112-0x0000000000BE0000-0x0000000000C84000-memory.dmp

      Filesize

      656KB

    • memory/4632-96-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4632-99-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4632-102-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4632-105-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4632-108-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4632-111-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4632-113-0x0000000000BE0000-0x0000000000C84000-memory.dmp

      Filesize

      656KB

    • memory/4632-90-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4632-117-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4632-118-0x0000000000BE0000-0x0000000000C84000-memory.dmp

      Filesize

      656KB

    • memory/4632-121-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4632-124-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4632-127-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4632-130-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4632-133-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4632-137-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB

    • memory/4632-140-0x0000000000400000-0x000000000086F000-memory.dmp

      Filesize

      4.4MB