Analysis

  • max time kernel
    150s
  • max time network
    151s
  • 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, 11:23

General

  • Target

    c15f840ee5f6a869656b0bbfbc31c42adda6838ad56a7b1561f5def470da47c4.exe

  • Size

    6.9MB

  • MD5

    71e489208c6f943f6102acf4dccec52d

  • SHA1

    9a911684465865969c2556c245666c9878ea6e45

  • SHA256

    c15f840ee5f6a869656b0bbfbc31c42adda6838ad56a7b1561f5def470da47c4

  • SHA512

    44f4e0d6da77cac25c13bb266916292d38fc5946b5303c22f9b5911a799aaef984ca3337a6ba7af3a1e5803a9b4633caa4e57aca8ed1a56b49940caa5af35f0a

  • SSDEEP

    196608:OH/2cOhoGEpX+jRFRvz29jgM7+3Utny3r/mvZO0agzj:LcOhoGE1ArRvqlgM7xtAT0Hzj

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\c15f840ee5f6a869656b0bbfbc31c42adda6838ad56a7b1561f5def470da47c4.exe
    "C:\Users\Admin\AppData\Local\Temp\c15f840ee5f6a869656b0bbfbc31c42adda6838ad56a7b1561f5def470da47c4.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2208
    • C:\Users\Admin\AppData\Local\Temp\is-S03BK.tmp\c15f840ee5f6a869656b0bbfbc31c42adda6838ad56a7b1561f5def470da47c4.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-S03BK.tmp\c15f840ee5f6a869656b0bbfbc31c42adda6838ad56a7b1561f5def470da47c4.tmp" /SL5="$9006A,6982471,68096,C:\Users\Admin\AppData\Local\Temp\c15f840ee5f6a869656b0bbfbc31c42adda6838ad56a7b1561f5def470da47c4.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3580
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:1844
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:428
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
          3⤵
          • Executes dropped EXE
          PID:4728
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:692
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:2076

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              1.2MB

              MD5

              0c9089ffb04995ff67394aa67b595bb4

              SHA1

              24b54f23ccfa53547cf2a0535cbc783a2d03fda5

              SHA256

              47380c6e86842537b558f97574016dcf6383da10a6c3581ca5a2575336835c81

              SHA512

              c8243906fa0c3eb64275a1b64fa9c74a118abd6dc3bf238552137fdbaa1f790ce9298c7a456d85350f5aa38f4e7d0d1aa3b54ec4ee3f76d12534276397782888

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

              Filesize

              1003KB

              MD5

              ac7b25c9a00d69185e6097d039442bfc

              SHA1

              a414efdf08b22eb79959492bb359b22a6638e654

              SHA256

              fe5bc6e6f2716359f661b81140ada73dcd6c1d9acc2096d9f1332da6c0bce5fb

              SHA512

              e7fda891636cb929e02a0b96b1fedf81405980d4ff543a14684036d2394ea17a1669bd8dd38eb6ed18fed5a3e0bdf69223002e97bf6dfa26f2f813b362ad121d

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

              Filesize

              113KB

              MD5

              d0bc00e11bc9a4b853d4b810ee854ed3

              SHA1

              ed6cee1748eb105b4b9b70f150f0a480f3e631d0

              SHA256

              71937ee0cef8b85256b416cc31d5d1e6dc8ab9552165f10791177143b744bf15

              SHA512

              1242d8c238a9b4f8bcd1823802555793fc3609c580e7f005968bb61aa7b66b63eec7b153f56f7e92747264218f508b92d7770b6de20cd24125a02a50c8cdc3b1

            • C:\Users\Admin\AppData\Local\Temp\is-7R3MK.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • C:\Users\Admin\AppData\Local\Temp\is-7R3MK.tmp\_isetup\_isdecmp.dll

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • C:\Users\Admin\AppData\Local\Temp\is-S03BK.tmp\c15f840ee5f6a869656b0bbfbc31c42adda6838ad56a7b1561f5def470da47c4.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

            • memory/428-152-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/428-151-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/428-155-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/2208-2-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/2208-0-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/2208-160-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/3580-16-0x00000000020F0000-0x00000000020F1000-memory.dmp

              Filesize

              4KB

            • memory/3580-161-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB

            • memory/3580-163-0x00000000020F0000-0x00000000020F1000-memory.dmp

              Filesize

              4KB

            • memory/4728-162-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4728-179-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4728-157-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4728-166-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4728-167-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4728-170-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4728-173-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4728-176-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4728-180-0x00000000007D0000-0x000000000086E000-memory.dmp

              Filesize

              632KB

            • memory/4728-159-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4728-185-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4728-188-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4728-189-0x00000000007D0000-0x000000000086E000-memory.dmp

              Filesize

              632KB

            • memory/4728-192-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4728-195-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4728-198-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4728-201-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4728-205-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4728-208-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB