Analysis

  • max time kernel
    158s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-12-2023 16:01

General

  • Target

    612004c097e70e5f3e8cc0e21324f93ccff44b16c3693d282c2ce8fab8a89724.exe

  • Size

    6.9MB

  • MD5

    f76c6e10d09e82a2cc8f0fdb93d91112

  • SHA1

    0075383e6d9b66982be091ed5c8a3fa635cce5db

  • SHA256

    612004c097e70e5f3e8cc0e21324f93ccff44b16c3693d282c2ce8fab8a89724

  • SHA512

    7589ab30c8ab638a1f7d125619fc9d4c2e8030631a1b10a9e229df36f8b78dd72eab53c5294fa7728f91260fe931cf10e645cc6ac430fd43bb062d4a198e4f1a

  • SSDEEP

    196608:ueusL5Sg97UrK5EvfjuiKsrGugWn7juD9k3Ozj:9Vsg95KnxLrGufn765k+zj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 2 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\612004c097e70e5f3e8cc0e21324f93ccff44b16c3693d282c2ce8fab8a89724.exe
    "C:\Users\Admin\AppData\Local\Temp\612004c097e70e5f3e8cc0e21324f93ccff44b16c3693d282c2ce8fab8a89724.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3052
    • C:\Users\Admin\AppData\Local\Temp\is-799DG.tmp\612004c097e70e5f3e8cc0e21324f93ccff44b16c3693d282c2ce8fab8a89724.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-799DG.tmp\612004c097e70e5f3e8cc0e21324f93ccff44b16c3693d282c2ce8fab8a89724.tmp" /SL5="$50174,6944675,68096,C:\Users\Admin\AppData\Local\Temp\612004c097e70e5f3e8cc0e21324f93ccff44b16c3693d282c2ce8fab8a89724.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1796
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:3184
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i
          3⤵
          • Executes dropped EXE
          PID:3556
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s
          3⤵
          • Executes dropped EXE
          PID:1768
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4748
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:324

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.8MB

        MD5

        fe9e9d10c240fabd1e08b138e19b2da4

        SHA1

        f65c6f1509625234372f820c9027a8f864489fd3

        SHA256

        ed07307aa6b42a4170865e4f5ac1aa9d2aafe055044e8b97b386f910fc5ff03c

        SHA512

        993d5f4bef3846b3af002179aef461cc555b22e5c2c3e16f94983934b4fef7808f248a771620f538e0a416ce1d8d96f720d373d828dad779194df2fa88c3bb2a

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

        Filesize

        1.6MB

        MD5

        a460a04e37972c0190fa5d27f3d696e5

        SHA1

        357db2fdf5b32c4958f3f95f7a46350685850a67

        SHA256

        b18d9c081aba68d1b4c9fff6f63bd726849673cd26300d577f3f4e60e968cc7c

        SHA512

        0d3426be1bf2e8ee1b957a6c5baa929f271eaaccb2036c3378cb032bce5966f0eb8abb4f32cdf2439130d6eeb9dd3eb453225670dbbb073bf49765f4d05a3153

      • C:\Users\Admin\AppData\Local\Temp\is-799DG.tmp\612004c097e70e5f3e8cc0e21324f93ccff44b16c3693d282c2ce8fab8a89724.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • C:\Users\Admin\AppData\Local\Temp\is-PKU2D.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-PKU2D.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/1768-191-0x0000000000790000-0x000000000082E000-memory.dmp

        Filesize

        632KB

      • memory/1768-186-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1768-202-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1768-196-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1768-193-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1768-180-0x0000000000790000-0x000000000082E000-memory.dmp

        Filesize

        632KB

      • memory/1768-189-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1768-205-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1768-159-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1768-199-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1768-162-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1768-181-0x0000000000790000-0x000000000082E000-memory.dmp

        Filesize

        632KB

      • memory/1768-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1768-167-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1768-170-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1768-173-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1768-176-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1768-179-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1796-163-0x0000000002350000-0x0000000002351000-memory.dmp

        Filesize

        4KB

      • memory/1796-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/1796-7-0x0000000002350000-0x0000000002351000-memory.dmp

        Filesize

        4KB

      • memory/3052-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3052-25-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3052-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3556-156-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3556-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3556-153-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3556-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB