Analysis

  • max time kernel
    149s
  • max time network
    142s
  • 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, 09:09

General

  • Target

    9b38ccb1071831f438b6d7ee5c7f4749ec46d1b168af89ddbedbf8dff4cc6c00.exe

  • Size

    6.9MB

  • MD5

    81192afd3636208d2ea5a8236458dd15

  • SHA1

    9b6e5b6fb9cb3ee58c3a7db282f3493489c5c529

  • SHA256

    9b38ccb1071831f438b6d7ee5c7f4749ec46d1b168af89ddbedbf8dff4cc6c00

  • SHA512

    024ef1de8521b56387397ed1c9eda52d4b27eed5f1b33548a19ccc0e2c8a9f02e82392642834d0de7cfc7ac70d6e67557e9e8dd5022fdc4c78730f8590d1ac0e

  • SSDEEP

    196608:3RW8Bq+q3WGhRQY914E1DF+V3bm/LCGNq3eUeKP3gdVfzj:3QeqbhPK4DFY4CtOUYVfzj

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\9b38ccb1071831f438b6d7ee5c7f4749ec46d1b168af89ddbedbf8dff4cc6c00.exe
    "C:\Users\Admin\AppData\Local\Temp\9b38ccb1071831f438b6d7ee5c7f4749ec46d1b168af89ddbedbf8dff4cc6c00.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4924
    • C:\Users\Admin\AppData\Local\Temp\is-RC9QA.tmp\9b38ccb1071831f438b6d7ee5c7f4749ec46d1b168af89ddbedbf8dff4cc6c00.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-RC9QA.tmp\9b38ccb1071831f438b6d7ee5c7f4749ec46d1b168af89ddbedbf8dff4cc6c00.tmp" /SL5="$500DC,6953145,68096,C:\Users\Admin\AppData\Local\Temp\9b38ccb1071831f438b6d7ee5c7f4749ec46d1b168af89ddbedbf8dff4cc6c00.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3712
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2524
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4564
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2320
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:2332
          • C:\Program Files (x86)\WMAFormat\wmaformat.exe
            "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
            3⤵
            • Executes dropped EXE
            PID:1576

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.8MB

        MD5

        0280b00d7cf6a1d0e836f72f5e94c0fb

        SHA1

        8f21d39aa6137c758f73c378042dde4001006946

        SHA256

        5494dda0175037320250f0dca19188091efff397b7e3a7f181e449c4c216703c

        SHA512

        072cf3bc6c580035a8f0ae719b03662d762a994138f879d2c6380cd8aff71b1c55731fb99658dec6a23756ad8fbafa7122480a6cd8434788eee6047181b7920e

      • C:\Users\Admin\AppData\Local\Temp\is-K880O.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-K880O.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-RC9QA.tmp\9b38ccb1071831f438b6d7ee5c7f4749ec46d1b168af89ddbedbf8dff4cc6c00.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

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

        Filesize

        1.8MB

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

        Filesize

        1.8MB

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

        Filesize

        1.8MB

      • memory/1576-201-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

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

        Filesize

        1.8MB

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

        Filesize

        1.8MB

      • memory/1576-156-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-158-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

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

        Filesize

        1.8MB

      • memory/1576-190-0x00000000007C0000-0x000000000085E000-memory.dmp

        Filesize

        632KB

      • 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/1576-181-0x00000000007C0000-0x000000000085E000-memory.dmp

        Filesize

        632KB

      • 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/1576-179-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1576-180-0x00000000007C0000-0x000000000085E000-memory.dmp

        Filesize

        632KB

      • memory/3712-6-0x00000000005D0000-0x00000000005D1000-memory.dmp

        Filesize

        4KB

      • memory/3712-163-0x00000000005D0000-0x00000000005D1000-memory.dmp

        Filesize

        4KB

      • memory/3712-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/4564-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4564-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4564-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4564-149-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4924-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4924-159-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB