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Analysis

  • max time kernel
    225s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    17/11/2023, 17:25

General

  • Target

    NEAS.58129d574276d13cf0744a87d51ee28a.exe

  • Size

    19KB

  • MD5

    58129d574276d13cf0744a87d51ee28a

  • SHA1

    d6ea309607c33a4b064700a4f8b521e5abca5642

  • SHA256

    6f363e914c2b4f121513e2dc9988001d09ce014c20a307e86d8fd039acf23c5a

  • SHA512

    2bfb0d2d3d3ece406c51b83f443f2554679c308463ce934eaa714e9f933f542c31960e205c34df80918af088e077935b62bb006c4b3f05e4ea5d34e7870080aa

  • SSDEEP

    384:UBWoC5GDr6wc/w3HgM6vDUTAXBGCVf4WVlFvXO1Bf:rRkiLw3HsDSARGG/WBf

Malware Config

Signatures

  • Windows security bypass 2 TTPs 4 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • Sets file execution options in registry 2 TTPs 3 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • UPX packed file 13 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Windows security modification 2 TTPs 4 IoCs
  • Modifies WinLogon 2 TTPs 5 IoCs
  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.58129d574276d13cf0744a87d51ee28a.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.58129d574276d13cf0744a87d51ee28a.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2576
    • C:\Windows\SysWOW64\rmass.exe
      "C:\Windows\system32\rmass.exe"
      2⤵
      • Windows security bypass
      • Drops file in Drivers directory
      • Modifies Installed Components in the registry
      • Sets file execution options in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Windows security modification
      • Modifies WinLogon
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3044
      • C:\Windows\SysWOW64\rmass.exe
        --k33p
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:2536
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1192
    • C:\Windows\system32\winlogon.exe
      winlogon.exe
      1⤵
        PID:420

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Windows\SysWOW64\RECOVER32.DLL

        Filesize

        5KB

        MD5

        2b2c28a7a01f9584fe220ef84003427f

        SHA1

        5fc023df0b5064045eb8de7f2dbe26f07f6fec70

        SHA256

        9e00af53b1d0c0f5270d94a666d95aa7b4dcb9fea49487c210c055c9dcfcc9eb

        SHA512

        39192a8a91dec1abff25af8dac0cf39da4dfd51b3fb4f1ef0b4e776185d4280fbe8387c2ea778da7bbf2ce288b0bce4d23cbe8d9e87bbd250159044f5adbac78

      • C:\Windows\SysWOW64\ahuy.exe

        Filesize

        22KB

        MD5

        f723b823f5487d7830ac3f777cf1d4eb

        SHA1

        90286a1cc7762118fcf0400079edd31eaade5bb2

        SHA256

        6af6a9dffc7cf652d2572f07d44c4cbc08e8394d5b5a2b5805f8c3718032267a

        SHA512

        f7ceee31e3b10d5adae91828e918f4d2e79693e12bd41d26f7e10fb638401fa7cc27b5be0778b150a5553efcf29100330b73eeed694b5820999e9d362091eb25

      • C:\Windows\SysWOW64\ntdbg.exe

        Filesize

        23KB

        MD5

        6b4622fae8a00397bb8c61733253e57c

        SHA1

        6972e7308b843220ec5bb21697683547b5348ab4

        SHA256

        995e5dcc6f15d9d901a4012ac5a928d5c471122c253ff7955f70be0b5bba24d8

        SHA512

        925f2dc6ccc8e2fa303062741535a5f7e4b225f9bb1dd1c596aff5ac970c28cd7c776be5571d7e6ed9197b9bc20126a82a7544fe9c77d8ed4c42ce3eedf0be9d

      • C:\Windows\SysWOW64\rmass.exe

        Filesize

        19KB

        MD5

        58129d574276d13cf0744a87d51ee28a

        SHA1

        d6ea309607c33a4b064700a4f8b521e5abca5642

        SHA256

        6f363e914c2b4f121513e2dc9988001d09ce014c20a307e86d8fd039acf23c5a

        SHA512

        2bfb0d2d3d3ece406c51b83f443f2554679c308463ce934eaa714e9f933f542c31960e205c34df80918af088e077935b62bb006c4b3f05e4ea5d34e7870080aa

      • C:\Windows\SysWOW64\rmass.exe

        Filesize

        19KB

        MD5

        58129d574276d13cf0744a87d51ee28a

        SHA1

        d6ea309607c33a4b064700a4f8b521e5abca5642

        SHA256

        6f363e914c2b4f121513e2dc9988001d09ce014c20a307e86d8fd039acf23c5a

        SHA512

        2bfb0d2d3d3ece406c51b83f443f2554679c308463ce934eaa714e9f933f542c31960e205c34df80918af088e077935b62bb006c4b3f05e4ea5d34e7870080aa

      • C:\Windows\SysWOW64\rmass.exe

        Filesize

        19KB

        MD5

        58129d574276d13cf0744a87d51ee28a

        SHA1

        d6ea309607c33a4b064700a4f8b521e5abca5642

        SHA256

        6f363e914c2b4f121513e2dc9988001d09ce014c20a307e86d8fd039acf23c5a

        SHA512

        2bfb0d2d3d3ece406c51b83f443f2554679c308463ce934eaa714e9f933f542c31960e205c34df80918af088e077935b62bb006c4b3f05e4ea5d34e7870080aa

      • C:\Windows\SysWOW64\rmass.exe

        Filesize

        19KB

        MD5

        58129d574276d13cf0744a87d51ee28a

        SHA1

        d6ea309607c33a4b064700a4f8b521e5abca5642

        SHA256

        6f363e914c2b4f121513e2dc9988001d09ce014c20a307e86d8fd039acf23c5a

        SHA512

        2bfb0d2d3d3ece406c51b83f443f2554679c308463ce934eaa714e9f933f542c31960e205c34df80918af088e077935b62bb006c4b3f05e4ea5d34e7870080aa

      • C:\Windows\System32\drivers\etc\hosts

        Filesize

        1KB

        MD5

        b10b13206b0f2cf3968050072f6979bf

        SHA1

        699db21ba9cecf3f13ac3d76e22cfa41aa94da80

        SHA256

        0eef3217095cb97b695c434e74d6314bf9e869a013d6e9c88e58c34576a276b4

        SHA512

        d33bfd931be6676539507a69101d99fa4c5ef36b12422bd11f063b9b6a47b7444f6c4ad5f35e044714fdb872e96cd9fddf049e8329af1219483887f6ac5f4a5d

      • \Windows\SysWOW64\rmass.exe

        Filesize

        19KB

        MD5

        58129d574276d13cf0744a87d51ee28a

        SHA1

        d6ea309607c33a4b064700a4f8b521e5abca5642

        SHA256

        6f363e914c2b4f121513e2dc9988001d09ce014c20a307e86d8fd039acf23c5a

        SHA512

        2bfb0d2d3d3ece406c51b83f443f2554679c308463ce934eaa714e9f933f542c31960e205c34df80918af088e077935b62bb006c4b3f05e4ea5d34e7870080aa

      • \Windows\SysWOW64\rmass.exe

        Filesize

        19KB

        MD5

        58129d574276d13cf0744a87d51ee28a

        SHA1

        d6ea309607c33a4b064700a4f8b521e5abca5642

        SHA256

        6f363e914c2b4f121513e2dc9988001d09ce014c20a307e86d8fd039acf23c5a

        SHA512

        2bfb0d2d3d3ece406c51b83f443f2554679c308463ce934eaa714e9f933f542c31960e205c34df80918af088e077935b62bb006c4b3f05e4ea5d34e7870080aa

      • \Windows\SysWOW64\rmass.exe

        Filesize

        19KB

        MD5

        58129d574276d13cf0744a87d51ee28a

        SHA1

        d6ea309607c33a4b064700a4f8b521e5abca5642

        SHA256

        6f363e914c2b4f121513e2dc9988001d09ce014c20a307e86d8fd039acf23c5a

        SHA512

        2bfb0d2d3d3ece406c51b83f443f2554679c308463ce934eaa714e9f933f542c31960e205c34df80918af088e077935b62bb006c4b3f05e4ea5d34e7870080aa

      • memory/2536-61-0x0000000000400000-0x0000000000411000-memory.dmp

        Filesize

        68KB

      • memory/2576-0-0x0000000000400000-0x0000000000411000-memory.dmp

        Filesize

        68KB

      • memory/2576-6-0x0000000000400000-0x0000000000411000-memory.dmp

        Filesize

        68KB

      • memory/2576-5-0x00000000002B0000-0x00000000002C1000-memory.dmp

        Filesize

        68KB

      • memory/3044-20-0x0000000000400000-0x0000000000411000-memory.dmp

        Filesize

        68KB

      • memory/3044-39-0x0000000000400000-0x0000000000411000-memory.dmp

        Filesize

        68KB