Analysis

  • max time kernel
    149s
  • max time network
    148s
  • 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, 11:59

General

  • Target

    74a9d48e0dfbecd391dd9c596b7ae43136ae65bf3eac8efa7e842e6275951b6d.exe

  • Size

    6.9MB

  • MD5

    4109d771cb65be7d5efc3edc4a6ba592

  • SHA1

    8a35aee249b6a97d6ce2d504c890266d3ec2247a

  • SHA256

    74a9d48e0dfbecd391dd9c596b7ae43136ae65bf3eac8efa7e842e6275951b6d

  • SHA512

    1d0f1fb6f1e7b07ca380a33de39d4dbcdcffb2ce7acb152117d21c4591937b76e281a1badbcfb2325d9acbce3754dea3d689ec03dbb352b9996273196d9ba458

  • SSDEEP

    98304:KCtQAsI29jHcxWjRTp6azZzB8hi4ZoEiAmP+xhctqd60dVADjhSF1O8lw3kBL7l7:nstjRJ/4ZoSQQhtd6sWDlSrM0BLRrzj

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\74a9d48e0dfbecd391dd9c596b7ae43136ae65bf3eac8efa7e842e6275951b6d.exe
    "C:\Users\Admin\AppData\Local\Temp\74a9d48e0dfbecd391dd9c596b7ae43136ae65bf3eac8efa7e842e6275951b6d.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4572
    • C:\Users\Admin\AppData\Local\Temp\is-1U1L2.tmp\74a9d48e0dfbecd391dd9c596b7ae43136ae65bf3eac8efa7e842e6275951b6d.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-1U1L2.tmp\74a9d48e0dfbecd391dd9c596b7ae43136ae65bf3eac8efa7e842e6275951b6d.tmp" /SL5="$9006A,6990075,68096,C:\Users\Admin\AppData\Local\Temp\74a9d48e0dfbecd391dd9c596b7ae43136ae65bf3eac8efa7e842e6275951b6d.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:516
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2044
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:1172
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
          3⤵
          • Executes dropped EXE
          PID:692
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2040
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:1492

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.8MB

        MD5

        524bfe0d470e2ab13742f92cdbfed508

        SHA1

        48101afa30091d7c96a380b5691ffacb5bc384df

        SHA256

        c4c9b495dc588973e4e7309756105795a1d3e0328fa19337a97f5b8a3ed45ea1

        SHA512

        50beaf5e63bdcfa1cff6fc3c4d88ba77e3ec55f6ae9d81163dea30b83f91fb672964460167a66730735d2fccfc8f92a209d272f69349b31b162abe939c7c504e

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

        Filesize

        877KB

        MD5

        6a032c0d49359b59f79986e8319bf56c

        SHA1

        ae871567371fc839a37edb7850c1bbda6836696a

        SHA256

        cf8141a538bba478e80f99c4c32aebecc910e2dfadd0678e4d7d7dbba2a40493

        SHA512

        2a07d441ecee406681d01cfef86f77a335f73ff71a546a7b8736692744babd6fd714d29f30f18e726d45037b249a68b62579b4023865ff26a296a5dc809149cf

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

        Filesize

        380KB

        MD5

        35c363f863b0d6710839c778ed510c68

        SHA1

        804f9a6bdcbbc5349a2c72d4a0b01bcd455e4494

        SHA256

        4de1d0647b0331ae474b67525a4a32938e11bc5b479f954adb02030db1314163

        SHA512

        c60efb1c5d50fce4452f26450ca7747aec3999b703adf1450e69f8a9cfe2eb318ece63f2b139f973b9fd98ee07bdbca0b0a903d0b49590b76209e7581e8081e2

      • C:\Users\Admin\AppData\Local\Temp\is-1U1L2.tmp\74a9d48e0dfbecd391dd9c596b7ae43136ae65bf3eac8efa7e842e6275951b6d.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • C:\Users\Admin\AppData\Local\Temp\is-TMTS1.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-TMTS1.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/516-163-0x0000000000670000-0x0000000000671000-memory.dmp

        Filesize

        4KB

      • memory/516-13-0x0000000000670000-0x0000000000671000-memory.dmp

        Filesize

        4KB

      • memory/516-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/692-186-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/692-189-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/692-209-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/692-206-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/692-157-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/692-159-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/692-203-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/692-199-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/692-162-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/692-196-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/692-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/692-167-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/692-170-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/692-173-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/692-176-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/692-179-0x0000000000860000-0x00000000008FE000-memory.dmp

        Filesize

        632KB

      • memory/692-180-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/692-183-0x0000000000860000-0x00000000008FE000-memory.dmp

        Filesize

        632KB

      • memory/692-193-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/692-190-0x0000000000860000-0x00000000008FE000-memory.dmp

        Filesize

        632KB

      • memory/1172-153-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1172-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1172-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1172-155-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4572-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4572-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4572-160-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB