Analysis

  • max time kernel
    217s
  • max time network
    230s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2022 15:13

General

  • Target

    1c991ad9e6a09ebde65d749f78a4a73890bf26780891410ca8a07b1dab841ab9.exe

  • Size

    1.0MB

  • MD5

    acd430684ecc9c6278874183ca40a133

  • SHA1

    b7fa9d0383a64e5a3c18a66fa3ef4d349d60fbb2

  • SHA256

    1c991ad9e6a09ebde65d749f78a4a73890bf26780891410ca8a07b1dab841ab9

  • SHA512

    301ab23e0989cdd42418d1a5f215ced23a54437d15d8fb6adbaf25edebdbca5ead5ce30a19b5eddba7c63ed07007d946050b830d6c293384d096de718b5c6d8c

  • SSDEEP

    12288:Xu460DZby5vzCrdIxM0VVaCWg5ctGnw1uia4goH71NvQZoXYE/WRs4haBVtL8skS:e460EzVMoaXgFw0ia4goHRos4olL8VO

Malware Config

Signatures

  • HawkEye

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

  • NirSoft MailPassView 5 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 6 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 18 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 6 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 55 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1c991ad9e6a09ebde65d749f78a4a73890bf26780891410ca8a07b1dab841ab9.exe
    "C:\Users\Admin\AppData\Local\Temp\1c991ad9e6a09ebde65d749f78a4a73890bf26780891410ca8a07b1dab841ab9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4528
    • C:\Users\Admin\AppData\Local\Temp\1c991ad9e6a09ebde65d749f78a4a73890bf26780891410ca8a07b1dab841ab9.exe
      "C:\Users\Admin\AppData\Local\Temp\1c991ad9e6a09ebde65d749f78a4a73890bf26780891410ca8a07b1dab841ab9.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:2696
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3504
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1396
          • 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"
            5⤵
            • Accesses Microsoft Outlook accounts
            PID:4832
          • 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"
            5⤵
              PID:4868
            • 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\holderprodkey.txt"
              5⤵
                PID:4528
              • 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\holderskypeview.txt"
                5⤵
                  PID:3116

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Execution

        Scripting

        1
        T1064

        Persistence

        Registry Run Keys / Startup Folder

        1
        T1060

        Defense Evasion

        Scripting

        1
        T1064

        Modify Registry

        1
        T1112

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        2
        T1082

        Collection

        Email Collection

        1
        T1114

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\1c991ad9e6a09ebde65d749f78a4a73890bf26780891410ca8a07b1dab841ab9.exe.log
          Filesize

          411B

          MD5

          39582d3351c79bbe6b34c92b86bb2e15

          SHA1

          0a5bc37313778570ffd8b7664fd04380446641f3

          SHA256

          a77ea8a3f342c18bc35e84d0c0255345ae259f80dd9ac4837760e5e4d5f593aa

          SHA512

          4e6acca2e4fd55d3dcdcaba0155364dcf17924113f23bb58c895e0119a79906f4e3fd1950d1dbb405cc02509373a1e2057a46dbc364189779ae96abb19214283

        • C:\Users\Admin\AppData\Local\Temp\SysInfo.txt
          Filesize

          102B

          MD5

          c30a51b55a68711721d8a168e6e7e4b1

          SHA1

          46868ab5ba7bbda0d993153a8838d3cadc6a7426

          SHA256

          12d0420f6116bb359f798979fe2dbe9b9e39aed6f25cbbcbe65522dcd040d76d

          SHA512

          d6cf559613aa4e6754df8e7959a231440c4bbb218cbe7ca821c3eac51c5e9be2c2c7d3aa11e7cfb7a9fb74def1d834d1376421b4f20f3567e2f4b5b2dbf8bd05

        • C:\Users\Admin\AppData\Local\Temp\holderprodkey.txt
          Filesize

          727B

          MD5

          15788e2047b69d289d21cb7994d1cae8

          SHA1

          45e87afd7dfcb6fe609dbda4db9831900a10633a

          SHA256

          6a5d7cda4ad9cb08fa9729f0961a5160e4cb5939b5e59f5ee7c0ab11ca5f2b83

          SHA512

          6ef8d92a4cfbac6b42b29edb8f0a3e3ff71842a618cf09cb630e47bd3f55076524aed7fd5d9d1e981a7a6ebb16d70b633f79f0270cbdc58b57cb12b5c74611c4

        • C:\Users\Admin\AppData\Local\Temp\holderskypeview.txt
          Filesize

          2B

          MD5

          f3b25701fe362ec84616a93a45ce9998

          SHA1

          d62636d8caec13f04e28442a0a6fa1afeb024bbb

          SHA256

          b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

          SHA512

          98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

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

          3KB

          MD5

          f94dc819ca773f1e3cb27abbc9e7fa27

          SHA1

          9a7700efadc5ea09ab288544ef1e3cd876255086

          SHA256

          a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

          SHA512

          72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          Filesize

          1.0MB

          MD5

          acd430684ecc9c6278874183ca40a133

          SHA1

          b7fa9d0383a64e5a3c18a66fa3ef4d349d60fbb2

          SHA256

          1c991ad9e6a09ebde65d749f78a4a73890bf26780891410ca8a07b1dab841ab9

          SHA512

          301ab23e0989cdd42418d1a5f215ced23a54437d15d8fb6adbaf25edebdbca5ead5ce30a19b5eddba7c63ed07007d946050b830d6c293384d096de718b5c6d8c

        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          Filesize

          1.0MB

          MD5

          acd430684ecc9c6278874183ca40a133

          SHA1

          b7fa9d0383a64e5a3c18a66fa3ef4d349d60fbb2

          SHA256

          1c991ad9e6a09ebde65d749f78a4a73890bf26780891410ca8a07b1dab841ab9

          SHA512

          301ab23e0989cdd42418d1a5f215ced23a54437d15d8fb6adbaf25edebdbca5ead5ce30a19b5eddba7c63ed07007d946050b830d6c293384d096de718b5c6d8c

        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          Filesize

          1.0MB

          MD5

          acd430684ecc9c6278874183ca40a133

          SHA1

          b7fa9d0383a64e5a3c18a66fa3ef4d349d60fbb2

          SHA256

          1c991ad9e6a09ebde65d749f78a4a73890bf26780891410ca8a07b1dab841ab9

          SHA512

          301ab23e0989cdd42418d1a5f215ced23a54437d15d8fb6adbaf25edebdbca5ead5ce30a19b5eddba7c63ed07007d946050b830d6c293384d096de718b5c6d8c

        • memory/1396-148-0x00000000751B0000-0x0000000075761000-memory.dmp
          Filesize

          5.7MB

        • memory/1396-150-0x00000000751B0000-0x0000000075761000-memory.dmp
          Filesize

          5.7MB

        • memory/1396-144-0x0000000000000000-mapping.dmp
        • memory/2696-136-0x00000000751B0000-0x0000000075761000-memory.dmp
          Filesize

          5.7MB

        • memory/2696-141-0x00000000751B0000-0x0000000075761000-memory.dmp
          Filesize

          5.7MB

        • memory/2696-134-0x0000000000400000-0x00000000004F0000-memory.dmp
          Filesize

          960KB

        • memory/2696-133-0x0000000000000000-mapping.dmp
        • memory/3116-172-0x0000000000400000-0x000000000044F000-memory.dmp
          Filesize

          316KB

        • memory/3116-170-0x0000000000400000-0x000000000044F000-memory.dmp
          Filesize

          316KB

        • memory/3116-169-0x0000000000000000-mapping.dmp
        • memory/3116-174-0x0000000000400000-0x000000000044F000-memory.dmp
          Filesize

          316KB

        • memory/3504-142-0x00000000751B0000-0x0000000075761000-memory.dmp
          Filesize

          5.7MB

        • memory/3504-147-0x00000000751B0000-0x0000000075761000-memory.dmp
          Filesize

          5.7MB

        • memory/3504-143-0x00000000751B0000-0x0000000075761000-memory.dmp
          Filesize

          5.7MB

        • memory/3504-137-0x0000000000000000-mapping.dmp
        • memory/4528-132-0x00000000751B0000-0x0000000075761000-memory.dmp
          Filesize

          5.7MB

        • memory/4528-164-0x0000000000400000-0x0000000000415000-memory.dmp
          Filesize

          84KB

        • memory/4528-168-0x0000000000400000-0x0000000000415000-memory.dmp
          Filesize

          84KB

        • memory/4528-135-0x00000000751B0000-0x0000000075761000-memory.dmp
          Filesize

          5.7MB

        • memory/4528-166-0x0000000000400000-0x0000000000415000-memory.dmp
          Filesize

          84KB

        • memory/4528-163-0x0000000000000000-mapping.dmp
        • memory/4832-151-0x0000000000000000-mapping.dmp
        • memory/4832-159-0x0000000000400000-0x000000000041B000-memory.dmp
          Filesize

          108KB

        • memory/4832-157-0x0000000000400000-0x000000000041B000-memory.dmp
          Filesize

          108KB

        • memory/4832-152-0x0000000000400000-0x000000000041B000-memory.dmp
          Filesize

          108KB

        • memory/4868-162-0x0000000000400000-0x0000000000459000-memory.dmp
          Filesize

          356KB

        • memory/4868-160-0x0000000000400000-0x0000000000459000-memory.dmp
          Filesize

          356KB

        • memory/4868-158-0x0000000000400000-0x0000000000459000-memory.dmp
          Filesize

          356KB

        • memory/4868-155-0x0000000000400000-0x0000000000459000-memory.dmp
          Filesize

          356KB

        • memory/4868-153-0x0000000000000000-mapping.dmp