Resubmissions

02/03/2024, 22:38

240302-2kwptaae37 10

02/03/2024, 22:34

240302-2g86qsad96 10

Analysis

  • max time kernel
    150s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    02/03/2024, 22:34

General

  • Target

    Fake AV/Antivirus.exe

  • Size

    2.0MB

  • MD5

    c7e9746b1b039b8bd1106bca3038c38f

  • SHA1

    cb93ac887876bafe39c5f9aa64970d5e747fb191

  • SHA256

    b1369bd254d96f7966047ad4be06103830136629590182d49e5cb8680529ebd4

  • SHA512

    cf5d688f1aec8ec65c1cb91d367da9a96911640c695d5c2d023836ef11e374ff158c152b4b6207e8fcdb5ccf0eed79741e080f1cbc915fe0af3dacd624525724

  • SSDEEP

    49152:FH/1Fdq0wneDrEoYxWFjmYMcKabLVp3diY7kp:FH/1Fdq0nIo2YAcl/NisA

Malware Config

Signatures

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Fake AV\Antivirus.exe
    "C:\Users\Admin\AppData\Local\Temp\Fake AV\Antivirus.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Windows\SysWOW64\net.exe
      net stop wscsvc
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2232
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop wscsvc
        3⤵
          PID:2428
      • C:\Windows\SysWOW64\net.exe
        net stop winmgmt /y
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2500
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop winmgmt /y
          3⤵
            PID:2848
        • C:\Windows\SysWOW64\net.exe
          net start winmgmt
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2628
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start winmgmt
            3⤵
              PID:2464
          • C:\Windows\SysWOW64\net.exe
            net start wscsvc
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2380
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start wscsvc
              3⤵
                PID:2540
            • C:\Windows\SysWOW64\Wbem\mofcomp.exe
              mofcomp C:\Users\Admin\AppData\Local\Temp\4otjesjty.mof
              2⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:620

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

                  Filesize

                  67KB

                  MD5

                  753df6889fd7410a2e9fe333da83a429

                  SHA1

                  3c425f16e8267186061dd48ac1c77c122962456e

                  SHA256

                  b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78

                  SHA512

                  9d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444

                • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\IKDEMF4Q\index[1].js

                  Filesize

                  3KB

                  MD5

                  d6ccc01f5e7ffed0e34b710cc8f94aea

                  SHA1

                  d8eebefa67f1b3ba5b4774450514063e2f5f0e84

                  SHA256

                  13fee64f85f9ed03819cfb90371daea36ab141bc8b6d109b54d6f88dd15b9928

                  SHA512

                  606b29db366da0738e5c918b7e872c1882ddd5ebec106179f2b599694aad1bca03833940cf11aa9fcef77d555ac89de573f6c358c083d9162e899a682df2ec58

                • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\NXAFS242\v84a3a4012de94ce1a686ba8c167c359c1696973893317[1].js

                  Filesize

                  19KB

                  MD5

                  dd1d068fdb5fe90b6c05a5b3940e088c

                  SHA1

                  0d96f9df8772633a9df4c81cf323a4ef8998ba59

                  SHA256

                  6153d13804862b0fc1c016cf1129f34cb7c6185f2cf4bf1a3a862eecdab50101

                  SHA512

                  7aea051a8c2195a2ea5ec3d6438f2a4a4052085b370cf4728b056edc58d1f7a70c3f1f85afe82959184869f707c2ac02a964b8d9166122e74ebc423e0a47fa30

                • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\U4VLHPRO\pixelplay[1].woff

                  Filesize

                  25KB

                  MD5

                  b49e517a8e3605250d8a4231554c1b57

                  SHA1

                  6da51af721bbb147c682f64c130ad97e336d1179

                  SHA256

                  86f273658594b1fc14337bff6945402bc90cc6b67989b757d0146d83bb07260d

                  SHA512

                  d4ce376ee0af2244de6ca039bafffa627cb5f795951d9cc4d2f01a0e65f5804d18909148f057edbc0f645072229120dbb8b31165254279fd6bbacf0c9a9acc66

                • C:\Users\Admin\AppData\Local\Temp\4otjesjty.mof

                  Filesize

                  443B

                  MD5

                  7fad92afda308dca8acfc6ff45c80c24

                  SHA1

                  a7fa35e7f90f772fc943c2e940737a48b654c295

                  SHA256

                  76e19416eb826a27bdcf626c3877cf7812bbe9b62cc2ccc5c2f65461d644246f

                  SHA512

                  49eed1e1197401cb856064bf7fdbd9f3bc57f3c864d47f509346d44eed3b54757d8c6cdb6254990d21291065f0762d2a1588d09e43c5728f77a420f6a8dcd6ea

                • C:\Users\Admin\AppData\Local\Temp\CabAFD1.tmp

                  Filesize

                  65KB

                  MD5

                  ac05d27423a85adc1622c714f2cb6184

                  SHA1

                  b0fe2b1abddb97837ea0195be70ab2ff14d43198

                  SHA256

                  c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

                  SHA512

                  6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

                • C:\Users\Admin\AppData\Local\Temp\TarB1BC.tmp

                  Filesize

                  175KB

                  MD5

                  dd73cead4b93366cf3465c8cd32e2796

                  SHA1

                  74546226dfe9ceb8184651e920d1dbfb432b314e

                  SHA256

                  a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

                  SHA512

                  ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

                • memory/2004-16-0x000000006F8A0000-0x000000006FBB2000-memory.dmp

                  Filesize

                  3.1MB

                • memory/2004-17-0x00000000078C0000-0x00000000078C1000-memory.dmp

                  Filesize

                  4KB

                • memory/2004-114-0x000000006F8A0000-0x000000006FBB2000-memory.dmp

                  Filesize

                  3.1MB

                • memory/2004-115-0x00000000078C0000-0x00000000078C1000-memory.dmp

                  Filesize

                  4KB