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Analysis

  • max time kernel
    149s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/12/2023, 13:33

General

  • Target

    a5d9c9aaab95d00e37cd5f12fced12ea.exe

  • Size

    3.2MB

  • MD5

    a5d9c9aaab95d00e37cd5f12fced12ea

  • SHA1

    0e8a70acc04714b5fb15d01ae47ff13a9226cac3

  • SHA256

    0e9c5a164da6954cff222b8dab1fdcd4135ca6f48dc7a86a3f42ea3045920f1b

  • SHA512

    708e4a98c91193e2d37a1e3822e49011b27f6c7baea8edd37256a14b88f33e8cff72e2dcaaf8265879302464c06f5289e11d1e74a69daf855723d8969f2a4a80

  • SSDEEP

    98304:r5Lycakc8qEN73MVknF9TcakcIX7ahMTN3cakc8qEN73MVknF9TcakcO:Vedl8JdMVqdlIXqMJdl8JdMVqdlO

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Program crash 18 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a5d9c9aaab95d00e37cd5f12fced12ea.exe
    "C:\Users\Admin\AppData\Local\Temp\a5d9c9aaab95d00e37cd5f12fced12ea.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4920
    • C:\Users\Admin\AppData\Local\Temp\a5d9c9aaab95d00e37cd5f12fced12ea.exe
      C:\Users\Admin\AppData\Local\Temp\a5d9c9aaab95d00e37cd5f12fced12ea.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:4364
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 620
        3⤵
        • Program crash
        PID:3148
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN mCaqQXkK46ae > C:\Users\Admin\AppData\Local\Temp\U5K4B.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4584
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\a5d9c9aaab95d00e37cd5f12fced12ea.exe" /TN mCaqQXkK46ae /F
        3⤵
        • Creates scheduled task(s)
        PID:3384
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 648
        3⤵
        • Program crash
        PID:4960
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 656
        3⤵
        • Program crash
        PID:4784
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 652
        3⤵
        • Program crash
        PID:5088
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 780
        3⤵
        • Program crash
        PID:3820
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 788
        3⤵
        • Program crash
        PID:1676
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 1460
        3⤵
        • Program crash
        PID:5080
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 1912
        3⤵
        • Program crash
        PID:2280
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 2144
        3⤵
        • Program crash
        PID:5028
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 2096
        3⤵
        • Program crash
        PID:664
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 1904
        3⤵
        • Program crash
        PID:4852
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 1924
        3⤵
        • Program crash
        PID:1396
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 1932
        3⤵
        • Program crash
        PID:2072
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 1916
        3⤵
        • Program crash
        PID:1844
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 2200
        3⤵
        • Program crash
        PID:4832
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 2216
        3⤵
        • Program crash
        PID:5060
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 2176
        3⤵
        • Program crash
        PID:4712
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 632
        3⤵
        • Program crash
        PID:920
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 4364 -ip 4364
    1⤵
      PID:4080
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks.exe /Query /XML /TN mCaqQXkK46ae
      1⤵
        PID:1252
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4364 -ip 4364
        1⤵
          PID:4996
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4364 -ip 4364
          1⤵
            PID:680
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4364 -ip 4364
            1⤵
              PID:1600
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4364 -ip 4364
              1⤵
                PID:5092
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4364 -ip 4364
                1⤵
                  PID:1668
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4364 -ip 4364
                  1⤵
                    PID:2872
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4364 -ip 4364
                    1⤵
                      PID:2432
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 196 -p 4364 -ip 4364
                      1⤵
                        PID:4536
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4364 -ip 4364
                        1⤵
                          PID:4404
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4364 -ip 4364
                          1⤵
                            PID:3764
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4364 -ip 4364
                            1⤵
                              PID:1964
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4364 -ip 4364
                              1⤵
                                PID:4300
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 196 -p 4364 -ip 4364
                                1⤵
                                  PID:3612
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4364 -ip 4364
                                  1⤵
                                    PID:3648
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4364 -ip 4364
                                    1⤵
                                      PID:1888
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4364 -ip 4364
                                      1⤵
                                        PID:752
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4364 -ip 4364
                                        1⤵
                                          PID:4956

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\a5d9c9aaab95d00e37cd5f12fced12ea.exe

                                          Filesize

                                          381KB

                                          MD5

                                          2e6d1b79f21018fc37ec8c24f0fa7c1e

                                          SHA1

                                          8a8ba839253dbdf9d9f45982e0cb6e1c34f7a504

                                          SHA256

                                          ec8c57f6b5612a808faaa8009f66055ca4e21ab9022eac429397b86b91efc1e0

                                          SHA512

                                          1826adbe8cb5a2c7244431d8aaf513f0ee4e58975e7e595f5191dc125689a1b5ffe8b374506bb3038d5aa86ad8b852b1ba2e020b6d89d42279d3a592d6564675

                                        • memory/4364-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4364-17-0x0000000024FF0000-0x000000002506E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4364-23-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4364-22-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/4364-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4920-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4920-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4920-5-0x0000000024FE0000-0x000000002505E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4920-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB