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Analysis

  • max time kernel
    150s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/03/2024, 04:12

General

  • Target

    10d2acf2624e52b9dd5f5a78b14bcdf7728bb9ef76f90008f622a5381d555952.exe

  • Size

    798KB

  • MD5

    202dd42eee0197f8951ca6b115432b30

  • SHA1

    5d1a4fb62b88e28a46f1988cf0f7b035b28d424d

  • SHA256

    10d2acf2624e52b9dd5f5a78b14bcdf7728bb9ef76f90008f622a5381d555952

  • SHA512

    3a844c0493df3521fce56d454aab73221bda5a3a65f98b14d36975537b9df2fe5209e1c884736b5b3da5ae2b4a76225b4ffa751674d3802dfcef75cc5573d15b

  • SSDEEP

    12288:uafx644Z97eXJM/0bsXGwCqjwEDBlf9plvnSAq:zA44bSPs2wwEDBnplaAq

Malware Config

Signatures

  • Avaddon

    Ransomware-as-a-service first released in June 2020 and currently expanding its userbase among criminal actors.

  • Avaddon payload 5 IoCs
  • UAC bypass 3 TTPs 2 IoCs
  • Renames multiple (167) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Looks up external IP address via web service 2 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 14 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 63 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • System policy modification 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\10d2acf2624e52b9dd5f5a78b14bcdf7728bb9ef76f90008f622a5381d555952.exe
    "C:\Users\Admin\AppData\Local\Temp\10d2acf2624e52b9dd5f5a78b14bcdf7728bb9ef76f90008f622a5381d555952.exe"
    1⤵
    • UAC bypass
    • Checks whether UAC is enabled
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:840
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 876
      2⤵
      • Program crash
      PID:4352
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 920
      2⤵
      • Program crash
      PID:1792
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 920
      2⤵
      • Program crash
      PID:1048
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 936
      2⤵
      • Program crash
      PID:3076
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 1032
      2⤵
      • Program crash
      PID:536
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 1156
      2⤵
      • Program crash
      PID:2076
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 1548
      2⤵
      • Program crash
      PID:3756
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 1612
      2⤵
      • Program crash
      PID:4060
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 1812
      2⤵
      • Program crash
      PID:3776
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 1624
      2⤵
      • Program crash
      PID:2532
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2684
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 1616
      2⤵
      • Program crash
      PID:4624
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3380
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1784
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 1788
      2⤵
      • Program crash
      PID:384
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 2320
      2⤵
      • Program crash
      PID:3756
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 928
      2⤵
      • Program crash
      PID:3136
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 840 -ip 840
    1⤵
      PID:440
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 840 -ip 840
      1⤵
        PID:4708
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 840 -ip 840
        1⤵
          PID:3528
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 840 -ip 840
          1⤵
            PID:4876
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 840 -ip 840
            1⤵
              PID:3024
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 840 -ip 840
              1⤵
                PID:640
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 840 -ip 840
                1⤵
                  PID:5112
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 840 -ip 840
                  1⤵
                    PID:4276
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 840 -ip 840
                    1⤵
                      PID:2344
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 840 -ip 840
                      1⤵
                        PID:1076
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 840 -ip 840
                        1⤵
                          PID:4536
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 840 -ip 840
                          1⤵
                            PID:3680
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 840 -ip 840
                            1⤵
                              PID:4748
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 840 -ip 840
                              1⤵
                                PID:4392

                              Network

                              MITRE ATT&CK Enterprise v15

                              Replay Monitor

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                              Downloads

                              • memory/840-1-0x0000000001D90000-0x0000000001E90000-memory.dmp

                                Filesize

                                1024KB

                              • memory/840-2-0x00000000020A0000-0x00000000021AE000-memory.dmp

                                Filesize

                                1.1MB

                              • memory/840-3-0x0000000000400000-0x0000000001B30000-memory.dmp

                                Filesize

                                23.2MB

                              • memory/840-270-0x0000000000400000-0x0000000001B30000-memory.dmp

                                Filesize

                                23.2MB

                              • memory/840-271-0x0000000001D90000-0x0000000001E90000-memory.dmp

                                Filesize

                                1024KB

                              • memory/840-276-0x00000000020A0000-0x00000000021AE000-memory.dmp

                                Filesize

                                1.1MB

                              • memory/840-352-0x0000000000400000-0x0000000001B30000-memory.dmp

                                Filesize

                                23.2MB