Analysis

  • max time kernel
    152s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    14-07-2022 02:21

General

  • Target

    48a4c9c13b2611401fc3b4041f6383591ced4990afd44ef11b3491b52b5ccc69.exe

  • Size

    1.2MB

  • MD5

    62fd68d0b6c7b628fc1688a74f5a812e

  • SHA1

    0b20f1242605bd33de07c10cb950daa35502c2ef

  • SHA256

    48a4c9c13b2611401fc3b4041f6383591ced4990afd44ef11b3491b52b5ccc69

  • SHA512

    6debd7cd91fd9666e4ed6129f011586d1b9f0500afc95f683cff472e31a334cd9080d4b5c2a8058cbd3b32ceb40fb5c42510e3c13524fc9d586ca9ca1b805291

Malware Config

Signatures

  • HawkEye

    HawkEye is a malware kit that has seen continuous development since at least 2013.

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • NirSoft MailPassView 10 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 9 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 14 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 6 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\48a4c9c13b2611401fc3b4041f6383591ced4990afd44ef11b3491b52b5ccc69.exe
    "C:\Users\Admin\AppData\Local\Temp\48a4c9c13b2611401fc3b4041f6383591ced4990afd44ef11b3491b52b5ccc69.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1828
    • C:\Users\Admin\5f91zhv917s\filedill.exe
      "C:\Users\Admin\5f91zhv917s\filedill.exe" sGWSpzZJk.EPB
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1564
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:768
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
          C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
          4⤵
          • Accesses Microsoft Outlook accounts
          PID:1240
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
          C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
          4⤵
            PID:1264

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\5F91ZH~1\DxaLSmL.UGB

      Filesize

      507KB

      MD5

      605b7402eb5f40b452daab94f834439a

      SHA1

      7f8cb93eb30a58a98eac4b7b45e1d950c68c85a0

      SHA256

      40536530c2cede3feb47eb50ebbb5fca2a7073e360f64061272cf63d067adefb

      SHA512

      838a92b8d8f171de6a5da5f14d7b0e6091595a6d2396c3aaea8dc6b9e45258f1c00e3922720a32aa08d32bae7cf8b3d1cf614ca87d49162b478fc9fb535fb854

    • C:\Users\Admin\5F91ZH~1\eCQvBTA.ZWG

      Filesize

      172B

      MD5

      6d2b5961513fbfead0812748aeb09381

      SHA1

      f69f91921b16fc69db804eab06d6a17fb53cbcac

      SHA256

      8eeae059933dbd5dc9d29b8f0d3a61899e7a2ba7a18cb6e705704d7c44712494

      SHA512

      59fc96a7f399f2cc8ed0eb6183e7c587baa27964fcda62bb4697db80b6ab29f1552d4409fe72d49547f157b4d91bf10449de72e72ba43f133be644062aad61d0

    • C:\Users\Admin\5f91zhv917s\filedill.exe

      Filesize

      915KB

      MD5

      e01ced5c12390ff5256694eda890b33a

      SHA1

      0bb74a9d3154d1269e5e456aa41e94b60f753f78

      SHA256

      66c1f3e71685f81f836e29e77844c737ceaa47ff787d6b233b05166973fa73ba

      SHA512

      93a35ef3749826c1256c4de0fffe099374dbc5cd3d8eccf22690cf2a4c7e63b508ddbe4e412758a84f9c6e9478b5173a6cf93606779af18542d5a2937183219d

    • C:\Users\Admin\5f91zhv917s\sGWSpzZJk.EPB

      Filesize

      28.8MB

      MD5

      4af295d2ccc2981b3093333cde1b8131

      SHA1

      c88e42edf0c1534212a339c49b897d0851cd9a03

      SHA256

      e5760e240f0cfec622d45e0b3e2d7301c22fefe702a3ef74b1e50ef9cf13dfdd

      SHA512

      f65818f0bf8df87901b5b0ddcc2d32326fbeef80c956cec85e2967782cbe7ca98873d4047c9f699de28505bfdaf0b330a432788259f73b38d036a92a2f88de25

    • C:\Users\Admin\AppData\Local\Temp\holderwb.txt

      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • \Users\Admin\5f91zhv917s\filedill.exe

      Filesize

      915KB

      MD5

      e01ced5c12390ff5256694eda890b33a

      SHA1

      0bb74a9d3154d1269e5e456aa41e94b60f753f78

      SHA256

      66c1f3e71685f81f836e29e77844c737ceaa47ff787d6b233b05166973fa73ba

      SHA512

      93a35ef3749826c1256c4de0fffe099374dbc5cd3d8eccf22690cf2a4c7e63b508ddbe4e412758a84f9c6e9478b5173a6cf93606779af18542d5a2937183219d

    • \Users\Admin\5f91zhv917s\filedill.exe

      Filesize

      915KB

      MD5

      e01ced5c12390ff5256694eda890b33a

      SHA1

      0bb74a9d3154d1269e5e456aa41e94b60f753f78

      SHA256

      66c1f3e71685f81f836e29e77844c737ceaa47ff787d6b233b05166973fa73ba

      SHA512

      93a35ef3749826c1256c4de0fffe099374dbc5cd3d8eccf22690cf2a4c7e63b508ddbe4e412758a84f9c6e9478b5173a6cf93606779af18542d5a2937183219d

    • \Users\Admin\5f91zhv917s\filedill.exe

      Filesize

      915KB

      MD5

      e01ced5c12390ff5256694eda890b33a

      SHA1

      0bb74a9d3154d1269e5e456aa41e94b60f753f78

      SHA256

      66c1f3e71685f81f836e29e77844c737ceaa47ff787d6b233b05166973fa73ba

      SHA512

      93a35ef3749826c1256c4de0fffe099374dbc5cd3d8eccf22690cf2a4c7e63b508ddbe4e412758a84f9c6e9478b5173a6cf93606779af18542d5a2937183219d

    • \Users\Admin\5f91zhv917s\filedill.exe

      Filesize

      915KB

      MD5

      e01ced5c12390ff5256694eda890b33a

      SHA1

      0bb74a9d3154d1269e5e456aa41e94b60f753f78

      SHA256

      66c1f3e71685f81f836e29e77844c737ceaa47ff787d6b233b05166973fa73ba

      SHA512

      93a35ef3749826c1256c4de0fffe099374dbc5cd3d8eccf22690cf2a4c7e63b508ddbe4e412758a84f9c6e9478b5173a6cf93606779af18542d5a2937183219d

    • memory/768-70-0x0000000000090000-0x0000000000114000-memory.dmp

      Filesize

      528KB

    • memory/768-82-0x0000000000260000-0x00000000002A0000-memory.dmp

      Filesize

      256KB

    • memory/768-67-0x0000000000090000-0x0000000000114000-memory.dmp

      Filesize

      528KB

    • memory/768-72-0x0000000000090000-0x0000000000114000-memory.dmp

      Filesize

      528KB

    • memory/768-93-0x0000000000260000-0x00000000002A0000-memory.dmp

      Filesize

      256KB

    • memory/768-74-0x0000000073AE0000-0x000000007408B000-memory.dmp

      Filesize

      5.7MB

    • memory/768-75-0x0000000073AE0000-0x000000007408B000-memory.dmp

      Filesize

      5.7MB

    • memory/768-65-0x0000000000090000-0x0000000000114000-memory.dmp

      Filesize

      528KB

    • memory/1240-84-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1240-80-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1240-83-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1240-76-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1264-85-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1264-89-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1264-92-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1828-54-0x0000000075541000-0x0000000075543000-memory.dmp

      Filesize

      8KB