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Analysis

  • max time kernel
    145s
  • max time network
    133s
  • platform
    windows10-1703_x64
  • resource
    win10-20231023-en
  • resource tags

    arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system
  • submitted
    11/12/2023, 06:26

General

  • Target

    afebb527735723fa201955d0763e1e2028e1f1fad6e4d050dc1736c552e9789d.exe

  • Size

    6.9MB

  • MD5

    ae981fbf7185133562f708a9a7f6ab52

  • SHA1

    8c2289d861f2fc65dcca216d548a439d51648354

  • SHA256

    afebb527735723fa201955d0763e1e2028e1f1fad6e4d050dc1736c552e9789d

  • SHA512

    512059362fcbceefbac5b551079e0242b192aaa5b6e9ac65d532b73acc3aedd4c7e88b734e70ba24b3b134a89c672de4ae3a821ca70bbfb90f2052a41a86d4fb

  • SSDEEP

    98304:ezyQ4kc+v4jvDhsQepuwmrkz216aPE8d9X+X1M2CX27eGqc6hxTGZtsAzFjTidLb:bQ4PTP94zHQ9OX1M2CGjn6hDc6LKEzj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 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 63 IoCs
  • Runs net.exe
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\afebb527735723fa201955d0763e1e2028e1f1fad6e4d050dc1736c552e9789d.exe
    "C:\Users\Admin\AppData\Local\Temp\afebb527735723fa201955d0763e1e2028e1f1fad6e4d050dc1736c552e9789d.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4824
    • C:\Users\Admin\AppData\Local\Temp\is-OLK4K.tmp\afebb527735723fa201955d0763e1e2028e1f1fad6e4d050dc1736c552e9789d.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-OLK4K.tmp\afebb527735723fa201955d0763e1e2028e1f1fad6e4d050dc1736c552e9789d.tmp" /SL5="$4023E,6985458,68096,C:\Users\Admin\AppData\Local\Temp\afebb527735723fa201955d0763e1e2028e1f1fad6e4d050dc1736c552e9789d.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4924
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:4324
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:2864
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2744
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:5084
          • C:\Program Files (x86)\WMAFormat\wmaformat.exe
            "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
            3⤵
            • Executes dropped EXE
            PID:4208

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\WMAFormat\wmaformat.exe

        Filesize

        1.8MB

        MD5

        ce0b4d4d116f7ff827115c5ee2bfc0c4

        SHA1

        3a12cf70e643db463a3b33ec4a77c0b02acc3c82

        SHA256

        c2a5278ab88c29c6c60460dab68829f3fdcfdf6d634a9f31d8342e890ab679d2

        SHA512

        2d2ae0224032827b0a07a40faa34817ccce41742d3f45e124834f6808f39965d642715285fc4a3557bd428d6bea1de991b1768ba5796d2f6262ad0dff8e811bb

      • C:\Users\Admin\AppData\Local\Temp\is-OLK4K.tmp\afebb527735723fa201955d0763e1e2028e1f1fad6e4d050dc1736c552e9789d.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-15CMQ.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-15CMQ.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/2864-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2864-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2864-150-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2864-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4208-165-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4208-192-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4208-158-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4208-157-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4208-208-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4208-205-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4208-161-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4208-202-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4208-198-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4208-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4208-169-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4208-172-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4208-175-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4208-178-0x00000000008A0000-0x000000000093E000-memory.dmp

        Filesize

        632KB

      • memory/4208-179-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4208-182-0x00000000008A0000-0x000000000093E000-memory.dmp

        Filesize

        632KB

      • memory/4208-185-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4208-188-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4208-189-0x00000000008A0000-0x000000000093E000-memory.dmp

        Filesize

        632KB

      • memory/4208-195-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4824-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4824-159-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4924-9-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/4924-162-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/4924-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB