Analysis

  • max time kernel
    94s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/09/2024, 08:59

General

  • Target

    cf17affffdf41d6dfaf83f59cb8a8490N.exe

  • Size

    128KB

  • MD5

    cf17affffdf41d6dfaf83f59cb8a8490

  • SHA1

    4dd5da527a73a4b6995bb74a1fa76c4284c83d57

  • SHA256

    c3dafa77bee00d1084186eebc45d272a4d8e882e16b38aa31c1f17c9d2170bdf

  • SHA512

    9e1fd3ca564a7dad8802b0766d85a81ead26fb8b15f02fbd2c0b4d40323e41759b2a463522c146d5968bf2847de92c93a20faa6e64da1a29e3f88109fdb3d86f

  • SSDEEP

    3072:dayh9szDuI0Y8euOArloYc8Bj3CZbWlOvoZSqjXH:dP9zY8eu5+b89SZMjX

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cf17affffdf41d6dfaf83f59cb8a8490N.exe
    "C:\Users\Admin\AppData\Local\Temp\cf17affffdf41d6dfaf83f59cb8a8490N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5020
    • C:\Users\Admin\AppData\Local\Temp\cf17affffdf41d6dfaf83f59cb8a8490N.exe
      "C:\Users\Admin\AppData\Local\Temp\cf17affffdf41d6dfaf83f59cb8a8490N.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1576
      • C:\Users\Admin\AppData\Local\Temp\cf17affffdf41d6dfaf83f59cb8a8490N.exe
        "C:\Users\Admin\AppData\Local\Temp\cf17affffdf41d6dfaf83f59cb8a8490N.exe"
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4748
        • C:\Users\Admin\AppData\Roaming\Nvwswf.exe
          "C:\Users\Admin\AppData\Roaming\Nvwswf.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2196
          • C:\Users\Admin\AppData\Roaming\Nvwswf.exe
            "C:\Users\Admin\AppData\Roaming\Nvwswf.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4296
            • C:\Users\Admin\AppData\Roaming\Nvwswf.exe
              "C:\Users\Admin\AppData\Roaming\Nvwswf.exe"
              6⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:228
              • C:\Program Files (x86)\Internet Explorer\iexplore.exe
                "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                • Suspicious use of WriteProcessMemory
                PID:3976
                • C:\Program Files\Internet Explorer\IEXPLORE.EXE
                  "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
                  8⤵
                  • Modifies Internet Explorer settings
                  • Suspicious use of FindShellTrayWindow
                  • Suspicious use of SetWindowsHookEx
                  • Suspicious use of WriteProcessMemory
                  PID:2316
                  • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2316 CREDAT:17410 /prefetch:2
                    9⤵
                    • System Location Discovery: System Language Discovery
                    • Modifies Internet Explorer settings
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of SetWindowsHookEx
                    PID:4548

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    471B

    MD5

    84231e6b703a4b64fa601076af9e016a

    SHA1

    210e330be937e617085d28bf356c990a49dce0a5

    SHA256

    e10b7b5f4f3291d340cebafd2d87bbec8689ffb1750a813a2887b6cd31ce61b3

    SHA512

    e13fcb1e344dbd4cd9429faa51f61615ce602908e3eabb7ae9190e745f38747b62b563ca9c0c71abecff1fc398afd2652d32ec37511061d2dff2356aaad0b8d4

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    404B

    MD5

    e5ca9793f84eafb90cff5d9070510360

    SHA1

    c9948a44960e52bfb07615f3eefe8434b5a6e101

    SHA256

    13d55b148e9c7442a070bfdf965368aaa93186236a40331fb12ecb1f798638d5

    SHA512

    2b8f7e612e91d6ea6f46a78942b328d871f2efa7ca13e110bf53ed07a81c87a9d1c671735dcff0f86473d99ac942099bead81b9345997599baf2ceb4be37954d

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verF898.tmp

    Filesize

    15KB

    MD5

    1a545d0052b581fbb2ab4c52133846bc

    SHA1

    62f3266a9b9925cd6d98658b92adec673cbe3dd3

    SHA256

    557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

    SHA512

    bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FGWUB7UN\suggestions[1].en-US

    Filesize

    17KB

    MD5

    5a34cb996293fde2cb7a4ac89587393a

    SHA1

    3c96c993500690d1a77873cd62bc639b3a10653f

    SHA256

    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

    SHA512

    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

  • C:\Users\Admin\AppData\Roaming\Nvwswf.exe

    Filesize

    128KB

    MD5

    cf17affffdf41d6dfaf83f59cb8a8490

    SHA1

    4dd5da527a73a4b6995bb74a1fa76c4284c83d57

    SHA256

    c3dafa77bee00d1084186eebc45d272a4d8e882e16b38aa31c1f17c9d2170bdf

    SHA512

    9e1fd3ca564a7dad8802b0766d85a81ead26fb8b15f02fbd2c0b4d40323e41759b2a463522c146d5968bf2847de92c93a20faa6e64da1a29e3f88109fdb3d86f

  • memory/228-67-0x0000000000400000-0x000000000042A000-memory.dmp

    Filesize

    168KB

  • memory/228-66-0x0000000000400000-0x000000000042A000-memory.dmp

    Filesize

    168KB

  • memory/228-65-0x0000000000400000-0x000000000042A000-memory.dmp

    Filesize

    168KB

  • memory/1576-19-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/1576-22-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/1576-21-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/2196-42-0x00000000029B0000-0x00000000029C0000-memory.dmp

    Filesize

    64KB

  • memory/2196-39-0x00000000004C0000-0x00000000004D0000-memory.dmp

    Filesize

    64KB

  • memory/2196-38-0x00000000004A0000-0x00000000004B0000-memory.dmp

    Filesize

    64KB

  • memory/2196-37-0x0000000000490000-0x00000000004A0000-memory.dmp

    Filesize

    64KB

  • memory/2196-40-0x00000000005D0000-0x00000000005E0000-memory.dmp

    Filesize

    64KB

  • memory/2196-41-0x0000000002000000-0x0000000002010000-memory.dmp

    Filesize

    64KB

  • memory/2196-43-0x00000000029C0000-0x00000000029D0000-memory.dmp

    Filesize

    64KB

  • memory/2196-44-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/2196-45-0x00000000029F0000-0x0000000002A00000-memory.dmp

    Filesize

    64KB

  • memory/2196-46-0x0000000002A00000-0x0000000002A10000-memory.dmp

    Filesize

    64KB

  • memory/2196-47-0x0000000002A10000-0x0000000002A20000-memory.dmp

    Filesize

    64KB

  • memory/2196-48-0x0000000002A20000-0x0000000002A30000-memory.dmp

    Filesize

    64KB

  • memory/2196-49-0x0000000002A30000-0x0000000002A40000-memory.dmp

    Filesize

    64KB

  • memory/2196-50-0x0000000002A40000-0x0000000002A50000-memory.dmp

    Filesize

    64KB

  • memory/2196-36-0x0000000000480000-0x0000000000490000-memory.dmp

    Filesize

    64KB

  • memory/2196-52-0x0000000002A60000-0x0000000002A70000-memory.dmp

    Filesize

    64KB

  • memory/2196-51-0x0000000002A50000-0x0000000002A60000-memory.dmp

    Filesize

    64KB

  • memory/4296-59-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/4748-34-0x0000000000400000-0x000000000042A000-memory.dmp

    Filesize

    168KB

  • memory/4748-28-0x0000000000400000-0x000000000042A000-memory.dmp

    Filesize

    168KB

  • memory/4748-27-0x0000000000400000-0x000000000042A000-memory.dmp

    Filesize

    168KB

  • memory/4748-23-0x0000000000400000-0x000000000042A000-memory.dmp

    Filesize

    168KB

  • memory/5020-8-0x00000000022B0000-0x00000000022C0000-memory.dmp

    Filesize

    64KB

  • memory/5020-12-0x0000000002300000-0x0000000002310000-memory.dmp

    Filesize

    64KB

  • memory/5020-7-0x00000000022A0000-0x00000000022B0000-memory.dmp

    Filesize

    64KB

  • memory/5020-2-0x00000000006B0000-0x00000000006C0000-memory.dmp

    Filesize

    64KB

  • memory/5020-6-0x0000000002290000-0x00000000022A0000-memory.dmp

    Filesize

    64KB

  • memory/5020-10-0x00000000022D0000-0x00000000022E0000-memory.dmp

    Filesize

    64KB

  • memory/5020-5-0x00000000006E0000-0x00000000006F0000-memory.dmp

    Filesize

    64KB

  • memory/5020-3-0x00000000006C0000-0x00000000006D0000-memory.dmp

    Filesize

    64KB

  • memory/5020-4-0x00000000006D0000-0x00000000006E0000-memory.dmp

    Filesize

    64KB

  • memory/5020-9-0x00000000022C0000-0x00000000022D0000-memory.dmp

    Filesize

    64KB

  • memory/5020-17-0x0000000002350000-0x0000000002360000-memory.dmp

    Filesize

    64KB

  • memory/5020-13-0x0000000002310000-0x0000000002320000-memory.dmp

    Filesize

    64KB

  • memory/5020-14-0x0000000002320000-0x0000000002330000-memory.dmp

    Filesize

    64KB

  • memory/5020-15-0x0000000002340000-0x0000000002350000-memory.dmp

    Filesize

    64KB

  • memory/5020-11-0x00000000022E0000-0x00000000022F0000-memory.dmp

    Filesize

    64KB

  • memory/5020-0-0x0000000000680000-0x0000000000690000-memory.dmp

    Filesize

    64KB

  • memory/5020-1-0x00000000006A0000-0x00000000006B0000-memory.dmp

    Filesize

    64KB