Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-12-2023 12:56

General

  • Target

    0558f82d89120a0e3bb02e13af95432ae194f53589058cd45cc3df309c4b36cd.exe

  • Size

    6.9MB

  • MD5

    d413c1bd4ad5a688dfa03922ea76f3a2

  • SHA1

    59a1848a7675327f5ecbae7da4a1caa2ef3713a2

  • SHA256

    0558f82d89120a0e3bb02e13af95432ae194f53589058cd45cc3df309c4b36cd

  • SHA512

    11dea99d788d1545e8cb96b95e49d23e809d8b703c24b33cac7faf2905a98654964cb783141c56353011d473218f27281b7f5e901924ff842b6966182f807f51

  • SSDEEP

    196608:ZeusL5Sg97UrK5EvfjuiKsrGugWn7juD9k3Ozj:sVsg95KnxLrGufn765k+zj

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\0558f82d89120a0e3bb02e13af95432ae194f53589058cd45cc3df309c4b36cd.exe
    "C:\Users\Admin\AppData\Local\Temp\0558f82d89120a0e3bb02e13af95432ae194f53589058cd45cc3df309c4b36cd.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3728
    • C:\Users\Admin\AppData\Local\Temp\is-L3TK1.tmp\0558f82d89120a0e3bb02e13af95432ae194f53589058cd45cc3df309c4b36cd.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-L3TK1.tmp\0558f82d89120a0e3bb02e13af95432ae194f53589058cd45cc3df309c4b36cd.tmp" /SL5="$70222,6944675,68096,C:\Users\Admin\AppData\Local\Temp\0558f82d89120a0e3bb02e13af95432ae194f53589058cd45cc3df309c4b36cd.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2248
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2012
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i
          3⤵
          • Executes dropped EXE
          PID:1572
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s
          3⤵
          • Executes dropped EXE
          PID:4332
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4860
    • C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 11
      1⤵
        PID:4964

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        567KB

        MD5

        b39e5481cabe3d18df969ea423b1b9a8

        SHA1

        271d23386ff8eb2270e8dbfcd87d599e1eeadc6f

        SHA256

        1baba58e9befb58ad991680fad5097a37b4fbbbd59d5b727b9a6230ad29374df

        SHA512

        230df94a88dd1a3d1681615524e583ec13db5ae46b42ff3882bf9433ede6bf1f449cd80402232e3f223a8721be73c3cce592e1bc058c90f133c7dca4628b620a

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

        Filesize

        725KB

        MD5

        c3897e1543b1ecd116841449c9186fca

        SHA1

        ecf57a80e57644753757acad3e99d0f182f67828

        SHA256

        d619edbae2caa2dd1deeb8024260eb4fa29b56d380ff333c2e52af3aa1471582

        SHA512

        c71a382f96b3846dfc6cc014584fb84e67bda4d0d5e6233591049b692975df480cb44e7d2a28304869db8f37178b93b3e51fe50f376b904a72f00b4c90075988

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

        Filesize

        433KB

        MD5

        83fd6bb52802ef8dac58d226a7d17373

        SHA1

        7e03a48b6d5b0ca447d6220f5c242a159a63c961

        SHA256

        7327452770157d0108444d14b62f6a73b18ff1d653221dbc548a0c60abd2ddfc

        SHA512

        353e5bbabd929142ac15a3bfa405dd41732e84baf3f05326b30969b77d9bc61467141597531c51ed1bda6cb67ba1949ff460783b98775b22bd4f47919c0f35e5

      • C:\Users\Admin\AppData\Local\Temp\is-IKHRE.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-IKHRE.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-L3TK1.tmp\0558f82d89120a0e3bb02e13af95432ae194f53589058cd45cc3df309c4b36cd.tmp

        Filesize

        38KB

        MD5

        076ec46c66e56e41b2acc4968b379512

        SHA1

        15a17722591924c22e07af8f378cb593244208ce

        SHA256

        2c2c1d12c7b98ae10ca979b05808e3a94d8659a4f17e5783efee50102451a4d1

        SHA512

        c74bb271defce713914c0f66638496b4645f4f706c5f64285c50ee392157eafcb1122e83fc7a5458f0e5693d4848cd8ec0590f7c56c6113573c9d7e9eee84ab0

      • C:\Users\Admin\AppData\Local\Temp\is-L3TK1.tmp\0558f82d89120a0e3bb02e13af95432ae194f53589058cd45cc3df309c4b36cd.tmp

        Filesize

        33KB

        MD5

        ca12e8a1efc44c2596e1858a4d7d0caa

        SHA1

        a599a164ece96b7497e59db794da861abef1de14

        SHA256

        f4ca8e570a2bed1b13e42260c1dbda2aac3cdf8cc296027e135b004727561772

        SHA512

        c9659b687d326cc37807203752a7e94b1b05622c44a7ff2d1eea1b405369dd4a6bedafaf51f43e171e534836679f1f71f4ea987b80276a6ee3be13c56080f229

      • memory/1572-155-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1572-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1572-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1572-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2248-7-0x0000000000640000-0x0000000000641000-memory.dmp

        Filesize

        4KB

      • memory/2248-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/2248-163-0x0000000000640000-0x0000000000641000-memory.dmp

        Filesize

        4KB

      • memory/3728-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3728-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3728-160-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4332-162-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4332-180-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4332-157-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4332-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4332-167-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4332-170-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4332-173-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4332-176-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4332-179-0x0000000002240000-0x00000000022DE000-memory.dmp

        Filesize

        632KB

      • memory/4332-159-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4332-183-0x0000000002240000-0x00000000022DE000-memory.dmp

        Filesize

        632KB

      • memory/4332-186-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4332-189-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4332-190-0x0000000002240000-0x00000000022DE000-memory.dmp

        Filesize

        632KB

      • memory/4332-193-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4332-196-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4332-199-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4332-203-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4332-206-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4332-209-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB