Analysis

  • max time kernel
    141s
  • max time network
    146s
  • platform
    windows10-1703_x64
  • resource
    win10-20231129-en
  • resource tags

    arch:x64arch:x86image:win10-20231129-enlocale:en-usos:windows10-1703-x64system
  • submitted
    11/12/2023, 05:40

General

  • Target

    fd862917b55d7d9873d1ab5a31fa3e656403dcd40e4a1945586685c12094bbb2.exe

  • Size

    6.9MB

  • MD5

    ea2073d70dff1cec9c5ed58066510be1

  • SHA1

    d61db5edf19504a06bea3569d3d884393e8a610e

  • SHA256

    fd862917b55d7d9873d1ab5a31fa3e656403dcd40e4a1945586685c12094bbb2

  • SHA512

    b5d163aa030c4719f4fadf8419c5f9f0c8957c7cd25671903d603564f24a9787809d427f186f180848b360e03784afff0cc2bceda0d1075f95eda08b5562b15e

  • SSDEEP

    196608:oH/2cOhoGEpX+jRFRvz29jgM7+3Utny3r/mvZO0agzj:dcOhoGE1ArRvqlgM7xtAT0Hzj

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\fd862917b55d7d9873d1ab5a31fa3e656403dcd40e4a1945586685c12094bbb2.exe
    "C:\Users\Admin\AppData\Local\Temp\fd862917b55d7d9873d1ab5a31fa3e656403dcd40e4a1945586685c12094bbb2.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3064
    • C:\Users\Admin\AppData\Local\Temp\is-KJR5Q.tmp\fd862917b55d7d9873d1ab5a31fa3e656403dcd40e4a1945586685c12094bbb2.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-KJR5Q.tmp\fd862917b55d7d9873d1ab5a31fa3e656403dcd40e4a1945586685c12094bbb2.tmp" /SL5="$50236,6982471,68096,C:\Users\Admin\AppData\Local\Temp\fd862917b55d7d9873d1ab5a31fa3e656403dcd40e4a1945586685c12094bbb2.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1716
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:5028
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4768
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
          3⤵
          • Executes dropped EXE
          PID:4012
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3676
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:4776

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              1.8MB

              MD5

              c343c906aaa2e2ac5b3ae9ab154c80a4

              SHA1

              b1ed930436a743821a403f3c185a222f41a2af44

              SHA256

              ea6a69b2b6f3893ac9963afcb168abc24e5c879ea1c600f6c54723564bfbe135

              SHA512

              df1ebb33e8675a5decd77cc66ba0befb7dad77442b5447009301123e868332a520dca4177b7db2fa9e39846b916daa2e77b172e238a251b80a40990931a94eb6

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

              Filesize

              1.5MB

              MD5

              3ea0aa45b3744161470244c2fd6954cf

              SHA1

              bee38b1f874805ca52ee900118e32e44599dda5c

              SHA256

              a8d45aa889ce940e19145d8ac5e2622ef922378817501bbf1eca1902165d72a9

              SHA512

              b0ecc2f763455a78986d580287f1ca0a8229153d8ee517b99435de23295320f50894d6e68496cd47e3fe82973bde0b2926f93a358bf15baf9c1966d2ba235159

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

              Filesize

              1.1MB

              MD5

              9792c659e919c06ae77faf76179d9690

              SHA1

              9957881ea1628187640997ad7850fa561d66ef21

              SHA256

              76b53e241873e1934cb2821b7b9b3ba43a097cec430e5dcdedfa2168209dfbf1

              SHA512

              46c08616aa5bc7a2b55f13b96cb614e4493d2daacb4f81cac7bcd8e8bcb4bb60704d5163d23b7e553f98419cd0ac6077dfb09491b791e3afc974f662c4584c9f

            • C:\Users\Admin\AppData\Local\Temp\is-KJR5Q.tmp\fd862917b55d7d9873d1ab5a31fa3e656403dcd40e4a1945586685c12094bbb2.tmp

              Filesize

              661KB

              MD5

              dd1b2d8219d28ec6b4135595bd7c290e

              SHA1

              a54411b23e7456e974371ec390be1731bd661644

              SHA256

              3196df2a4cd762cc7317eb69db48fc2c765c20a46abe74a8e6af9849cb4010f9

              SHA512

              a50868b1ed8f846ba7766aa053aa71f863a4c365e98aa72b19e6f38e40cb680ead0dff777af4bb4f7bf843506baaa378c1b90a64e8a92a6554fb6cae2f7fcd87

            • C:\Users\Admin\AppData\Local\Temp\is-KJR5Q.tmp\fd862917b55d7d9873d1ab5a31fa3e656403dcd40e4a1945586685c12094bbb2.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

            • \Users\Admin\AppData\Local\Temp\is-I0755.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • \Users\Admin\AppData\Local\Temp\is-I0755.tmp\_isetup\_isdecmp.dll

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • memory/1716-10-0x00000000001F0000-0x00000000001F1000-memory.dmp

              Filesize

              4KB

            • memory/1716-162-0x00000000001F0000-0x00000000001F1000-memory.dmp

              Filesize

              4KB

            • memory/1716-160-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB

            • memory/3064-2-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/3064-0-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/3064-159-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/4012-185-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4012-177-0x00000000006F0000-0x000000000078E000-memory.dmp

              Filesize

              632KB

            • memory/4012-208-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4012-205-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4012-161-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4012-202-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4012-165-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4012-166-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4012-169-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4012-172-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4012-175-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4012-158-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4012-181-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4012-182-0x00000000006F0000-0x000000000078E000-memory.dmp

              Filesize

              632KB

            • memory/4012-198-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4012-188-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4012-189-0x00000000006F0000-0x000000000078E000-memory.dmp

              Filesize

              632KB

            • memory/4012-192-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4012-195-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4768-151-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4768-152-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4768-154-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4768-155-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB