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Analysis

  • max time kernel
    141s
  • max time network
    146s
  • 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, 13:38

General

  • Target

    29a8c4f9e759dc16931cdc2e8d3ee7c8996c84d8bb84022300bc85bb77b404f6.exe

  • Size

    6.9MB

  • MD5

    ec9ae05863adeb62c247113ad4d5db18

  • SHA1

    bf260d02e25c2bcd2f3a080c2f4f9a4bf79bb4d2

  • SHA256

    29a8c4f9e759dc16931cdc2e8d3ee7c8996c84d8bb84022300bc85bb77b404f6

  • SHA512

    8d15eb4a6975507299429d56ae64a1bdbb71448692e7899dd4e43adb63b0e6fe1507bf4da609f39886999edef43bea57c827d9b9c7120aa329580ba548072dfd

  • SSDEEP

    196608:vW0fKLtr95HARqIrmVY8S50UL8Kj8yTwHvWY3Nzj:vtO/hAPmVNyEWeNzj

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\29a8c4f9e759dc16931cdc2e8d3ee7c8996c84d8bb84022300bc85bb77b404f6.exe
    "C:\Users\Admin\AppData\Local\Temp\29a8c4f9e759dc16931cdc2e8d3ee7c8996c84d8bb84022300bc85bb77b404f6.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3664
    • C:\Users\Admin\AppData\Local\Temp\is-67FIS.tmp\29a8c4f9e759dc16931cdc2e8d3ee7c8996c84d8bb84022300bc85bb77b404f6.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-67FIS.tmp\29a8c4f9e759dc16931cdc2e8d3ee7c8996c84d8bb84022300bc85bb77b404f6.tmp" /SL5="$40242,6973457,68096,C:\Users\Admin\AppData\Local\Temp\29a8c4f9e759dc16931cdc2e8d3ee7c8996c84d8bb84022300bc85bb77b404f6.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4776
      • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
        "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2128
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2884
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s
          3⤵
          • Executes dropped EXE
          PID:1632
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4912
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:1264

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe

        Filesize

        847KB

        MD5

        884be7363bfb84d754e37ba78ce88901

        SHA1

        fb769d82e7c9dc8ea3eafb3c88d916f22b9e43f3

        SHA256

        43a21bf905fd7b7ae70e157acdcc2a4ba93e898d89fa1e48c512f8f6fe5d0403

        SHA512

        608197ffc2988ec763c8761803c7b60ef3f8178644f25ac94b14b9508ede39c358bf314762c0fe8a5bf86310759c6ce57bb3302e50227e3ee888456d10770b11

      • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe

        Filesize

        845KB

        MD5

        701f420e4a302d82c23bf97bbb3db677

        SHA1

        8ece03c0a49e7c3934a379e6aa9d40a786d78de3

        SHA256

        af554a616f51d86b9efc4e23ea79925c4acb5b09db8a5c2e467033b9c9f1e544

        SHA512

        804f58015a9a020e1d531b0f41b10d4b061d82b542500b8a2f2bf4a5bb2d2cde5cd97cfd257a2eca6e75732fcaf214e1d420574b2bd19d91e7d54d67be8595d9

      • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe

        Filesize

        898KB

        MD5

        89ecbdb51a4650ace6ffa84bdc885395

        SHA1

        ab461930079dc1706b14de68e1bbf6a06a597b3b

        SHA256

        53a4831678614adc116d839d0edce13f865ea3a7e1112b9050c183e52ad8d677

        SHA512

        81b44b75c21e03370009cb88cfb2dc10f6e2586eee320b895c1212f860638d4711ca1ad11bdf74bd2bc238117ba4e3a75a4ddbedc502a187d73f13a121cad52a

      • C:\Users\Admin\AppData\Local\Temp\is-67FIS.tmp\29a8c4f9e759dc16931cdc2e8d3ee7c8996c84d8bb84022300bc85bb77b404f6.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

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

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/1632-183-0x0000000000750000-0x00000000007EE000-memory.dmp

        Filesize

        632KB

      • memory/1632-190-0x0000000000750000-0x00000000007EE000-memory.dmp

        Filesize

        632KB

      • memory/1632-209-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1632-206-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1632-203-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1632-199-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1632-158-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1632-159-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1632-196-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1632-193-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1632-162-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1632-189-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1632-165-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1632-167-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1632-170-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1632-173-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1632-176-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1632-178-0x0000000000750000-0x00000000007EE000-memory.dmp

        Filesize

        632KB

      • memory/1632-186-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1632-182-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2128-155-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2128-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2128-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3664-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3664-160-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3664-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4776-163-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/4776-7-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/4776-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB