Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-04-2024 10:08

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 4 IoCs
  • UAC bypass 3 TTPs 2 IoCs
  • Renames multiple (154) 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 24 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 15 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:4792
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 876
      2⤵
      • Program crash
      PID:376
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 884
      2⤵
      • Program crash
      PID:4432
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 928
      2⤵
      • Program crash
      PID:1596
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 936
      2⤵
      • Program crash
      PID:1616
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 1032
      2⤵
      • Program crash
      PID:1872
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 1032
      2⤵
      • Program crash
      PID:440
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 1552
      2⤵
      • Program crash
      PID:2888
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 1656
      2⤵
      • Program crash
      PID:952
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 1840
      2⤵
      • Program crash
      PID:3988
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 1828
      2⤵
      • Program crash
      PID:4416
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 1672
      2⤵
      • Program crash
      PID:3676
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3376
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 1660
      2⤵
      • Program crash
      PID:2044
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4936
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2112
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 1656
      2⤵
      • Program crash
      PID:2280
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 1728
      2⤵
      • Program crash
      PID:4824
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 1032
      2⤵
      • Program crash
      PID:2804
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 4792 -ip 4792
    1⤵
      PID:3160
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4792 -ip 4792
      1⤵
        PID:436
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4792 -ip 4792
        1⤵
          PID:3448
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4792 -ip 4792
          1⤵
            PID:2076
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4792 -ip 4792
            1⤵
              PID:1540
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4792 -ip 4792
              1⤵
                PID:1500
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4792 -ip 4792
                1⤵
                  PID:3236
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4792 -ip 4792
                  1⤵
                    PID:2192
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4792 -ip 4792
                    1⤵
                      PID:3024
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4792 -ip 4792
                      1⤵
                        PID:1576
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4792 -ip 4792
                        1⤵
                          PID:4148
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4792 -ip 4792
                          1⤵
                            PID:1168
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4792 -ip 4792
                            1⤵
                              PID:4504
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 4792 -ip 4792
                              1⤵
                                PID:2596
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4792 -ip 4792
                                1⤵
                                  PID:1116

                                Network

                                MITRE ATT&CK Matrix ATT&CK v13

                                Privilege Escalation

                                Abuse Elevation Control Mechanism

                                1
                                T1548

                                Bypass User Account Control

                                1
                                T1548.002

                                Defense Evasion

                                Abuse Elevation Control Mechanism

                                1
                                T1548

                                Bypass User Account Control

                                1
                                T1548.002

                                Impair Defenses

                                1
                                T1562

                                Disable or Modify Tools

                                1
                                T1562.001

                                Modify Registry

                                2
                                T1112

                                Discovery

                                System Information Discovery

                                3
                                T1082

                                Query Registry

                                1
                                T1012

                                Peripheral Device Discovery

                                1
                                T1120

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                • memory/4792-1-0x0000000001C80000-0x0000000001D80000-memory.dmp
                                  Filesize

                                  1024KB

                                • memory/4792-2-0x0000000002070000-0x000000000217E000-memory.dmp
                                  Filesize

                                  1.1MB

                                • memory/4792-3-0x0000000000400000-0x0000000001B30000-memory.dmp
                                  Filesize

                                  23.2MB

                                • memory/4792-319-0x0000000000400000-0x0000000001B30000-memory.dmp
                                  Filesize

                                  23.2MB

                                • memory/4792-321-0x0000000001C80000-0x0000000001D80000-memory.dmp
                                  Filesize

                                  1024KB

                                • memory/4792-322-0x0000000002070000-0x000000000217E000-memory.dmp
                                  Filesize

                                  1.1MB