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Analysis

  • max time kernel
    141s
  • max time network
    142s
  • platform
    windows10-1703_x64
  • resource
    win10-20231129-en
  • resource tags

    arch:x64arch:x86image:win10-20231129-enlocale:en-usos:windows10-1703-x64system
  • submitted
    11/12/2023, 07:41

General

  • Target

    4d79cc6f84b9e7dae49c24913b2adc5f0f23536e4450b403ee011ad30e495fbf.exe

  • Size

    6.9MB

  • MD5

    dec808d994ffa0078998fe6cc400e896

  • SHA1

    3f4d3ce8ab5a91a7d0b95b1e6d43487d58b4ce68

  • SHA256

    4d79cc6f84b9e7dae49c24913b2adc5f0f23536e4450b403ee011ad30e495fbf

  • SHA512

    b9fe8e8106c87798b403bae6d3851a4cde9455c4f64037bba0930bd1a42de97fc2b7ce806cebe2765bbb223bf3ef23165f3dfde474817c8fa6e63fde1c4c2400

  • SSDEEP

    98304:yCtQAsI29jHcxWjRTp6azZzB8hi4ZoEiAmP+xhctqd60dVADjhSF1O8lw3kBL7l7:/stjRJ/4ZoSQQhtd6sWDlSrM0BLRrzj

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\4d79cc6f84b9e7dae49c24913b2adc5f0f23536e4450b403ee011ad30e495fbf.exe
    "C:\Users\Admin\AppData\Local\Temp\4d79cc6f84b9e7dae49c24913b2adc5f0f23536e4450b403ee011ad30e495fbf.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4428
    • C:\Users\Admin\AppData\Local\Temp\is-0IBCO.tmp\4d79cc6f84b9e7dae49c24913b2adc5f0f23536e4450b403ee011ad30e495fbf.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-0IBCO.tmp\4d79cc6f84b9e7dae49c24913b2adc5f0f23536e4450b403ee011ad30e495fbf.tmp" /SL5="$50218,6990075,68096,C:\Users\Admin\AppData\Local\Temp\4d79cc6f84b9e7dae49c24913b2adc5f0f23536e4450b403ee011ad30e495fbf.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4532
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:4388
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:3400
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
          3⤵
          • Executes dropped EXE
          PID:1576
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1696
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:4120

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        556KB

        MD5

        91a5efc22124fa566161d1ae7d3c560d

        SHA1

        b1dc9674ee9dd0b93e4bc2c7123b0b36ada84528

        SHA256

        f067f69c120ee5e6a86abc5f56c08e7e78d7bc3c1077ab064225b23f9c90e63c

        SHA512

        e6fec26accfba9752a2a4c46cc19be18e8cdfae9509f1883269b243b015df84bb806b5cfe1550db055bb19097331545b0e4933ea032ebce52523409dc7fe1bd5

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

        Filesize

        448KB

        MD5

        e9154e6d9baf83622279b926e1b1eb66

        SHA1

        904f7217af9dc4bb744c61ea6db92bbc5ed764f1

        SHA256

        bc009422417c0d7dec3f8722f14141dc6beb10601f566b8d8c2eeb0739dbf0dd

        SHA512

        930683e630c86d0955960d6b7249b7c2b9bda6fe0cf3df618c08c0b2d4f58bd5cd394c2cc4937d5febd599bddb6dca6a6f1fee2ac7d1feeb833c5f11b0d8903e

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

        Filesize

        403KB

        MD5

        b7d8f581a58f565071676c216098bebf

        SHA1

        84c94f289ea687b01708fd3d0e2656b10ed4dd94

        SHA256

        b66ae81a07da409297d9ed76925aaf5c66b6c69fdb7ea9b18ac30f044dd38616

        SHA512

        f2b9a895f471cb362e0fd092f2b508a397a45f13566198d87427d6a3fb3d3bf410fc32064b512d15010a1cf3e32505197140ef3914964f6334a45d8fac08667e

      • C:\Users\Admin\AppData\Local\Temp\is-0IBCO.tmp\4d79cc6f84b9e7dae49c24913b2adc5f0f23536e4450b403ee011ad30e495fbf.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

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

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/1576-182-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-190-0x00000000008B0000-0x000000000094E000-memory.dmp

        Filesize

        632KB

      • memory/1576-209-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-206-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-202-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-199-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-157-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-159-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-196-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-193-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-162-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-189-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-167-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-170-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-173-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-176-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-177-0x00000000008B0000-0x000000000094E000-memory.dmp

        Filesize

        632KB

      • memory/1576-186-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-183-0x00000000008B0000-0x000000000094E000-memory.dmp

        Filesize

        632KB

      • memory/3400-155-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3400-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3400-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4428-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4428-160-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4428-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4532-163-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/4532-10-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/4532-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB