Analysis

  • max time kernel
    150s
  • max time network
    152s
  • 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, 09:33

General

  • Target

    2dbb78d360fd5bd5ab899b8071aecafd2bf0f6e0d1e5edc8cfe31392e37a3399.exe

  • Size

    6.9MB

  • MD5

    4fc37da278d8c38c1639dca683a5c412

  • SHA1

    ccb99d48f01c12e300771e44d4554d2dea1ef9f1

  • SHA256

    2dbb78d360fd5bd5ab899b8071aecafd2bf0f6e0d1e5edc8cfe31392e37a3399

  • SHA512

    fa096b0a060d8408573d7d569f5006e499aa7762695102710557050f8667602a4d38a04754cc36571335c795209996b7f6fd86ad5b1a5b82adbdf02a2343c059

  • SSDEEP

    196608:YRW8Bq+q3WGhRQY914E1DF+V3bm/LCGNq3eUeKP3gdVfzj:YQeqbhPK4DFY4CtOUYVfzj

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\2dbb78d360fd5bd5ab899b8071aecafd2bf0f6e0d1e5edc8cfe31392e37a3399.exe
    "C:\Users\Admin\AppData\Local\Temp\2dbb78d360fd5bd5ab899b8071aecafd2bf0f6e0d1e5edc8cfe31392e37a3399.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:100
    • C:\Users\Admin\AppData\Local\Temp\is-GK41S.tmp\2dbb78d360fd5bd5ab899b8071aecafd2bf0f6e0d1e5edc8cfe31392e37a3399.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-GK41S.tmp\2dbb78d360fd5bd5ab899b8071aecafd2bf0f6e0d1e5edc8cfe31392e37a3399.tmp" /SL5="$70062,6953145,68096,C:\Users\Admin\AppData\Local\Temp\2dbb78d360fd5bd5ab899b8071aecafd2bf0f6e0d1e5edc8cfe31392e37a3399.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4868
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:3480
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:548
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
          3⤵
          • Executes dropped EXE
          PID:3108
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2012
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:432

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              1.1MB

              MD5

              440c0e6bfbf3da7755c5692af1992d4b

              SHA1

              2745a6c221c8ee1a18d355a5c55385bea819c41d

              SHA256

              b100486ab5d6a211f294cc37660baa24f74d713c11243871449245bc70aae1f2

              SHA512

              0a962a42c42314e94b6c27708c58dcad6894b56a9ede0df96bdf1c5e7d9d556879a5b8c09ac09950d3524e82f89ca901d8da400573302ae429e827112cc94d27

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

              Filesize

              1.2MB

              MD5

              731ca4c07877de583a3865dc6080fda1

              SHA1

              9f80239158345cf474aff221c66a6f367a90ffcd

              SHA256

              ceb3c7237d9f29a491481d0d71b92e903306e96eab407e2b0cc007e0a3f17096

              SHA512

              fd48e50afdec3040ea2e5fbf12f26135bc438a6070fb68be478dbb0b859e9fd76825dba34da02f760ed9eaa74823375044b6b252ab6a4755d66a8e622ef752e9

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

              Filesize

              399KB

              MD5

              a9149660cd1e1def277dfcc8ffd5513b

              SHA1

              0fb3fb59afc65ea23a62ffdb8ac93bd087b1befd

              SHA256

              9f8c312413e8b388bbbbc876b1f669fb8c3777ab0d89cd1c4f5ba00393ec801c

              SHA512

              92b91ce3c08f29dd4273aea3f8e54133e18e0a2e393554752608e708160a6635fc80cdd1db84bf528b0910c83b1492045da0dcc76cafb1e2a78beb1e4a55670d

            • C:\Users\Admin\AppData\Local\Temp\is-GK41S.tmp\2dbb78d360fd5bd5ab899b8071aecafd2bf0f6e0d1e5edc8cfe31392e37a3399.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

            • C:\Users\Admin\AppData\Local\Temp\is-TB0D3.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • C:\Users\Admin\AppData\Local\Temp\is-TB0D3.tmp\_isetup\_isdecmp.dll

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • memory/100-160-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/100-1-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/548-151-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/548-152-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/548-155-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/548-154-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3108-166-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3108-183-0x0000000000730000-0x00000000007CE000-memory.dmp

              Filesize

              632KB

            • memory/3108-211-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3108-158-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3108-162-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3108-208-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3108-204-0x0000000000730000-0x00000000007CE000-memory.dmp

              Filesize

              632KB

            • memory/3108-167-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3108-170-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3108-173-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3108-176-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3108-180-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3108-179-0x0000000000730000-0x00000000007CE000-memory.dmp

              Filesize

              632KB

            • memory/3108-159-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3108-186-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3108-189-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3108-190-0x0000000000730000-0x00000000007CE000-memory.dmp

              Filesize

              632KB

            • memory/3108-193-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3108-196-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3108-199-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3108-202-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3108-203-0x0000000000730000-0x00000000007CE000-memory.dmp

              Filesize

              632KB

            • memory/4868-18-0x0000000000650000-0x0000000000651000-memory.dmp

              Filesize

              4KB

            • memory/4868-163-0x0000000000650000-0x0000000000651000-memory.dmp

              Filesize

              4KB

            • memory/4868-161-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB