Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/12/2023, 13:51

General

  • Target

    af42dc3d0f6480e17a15383a45ffd0bd.exe

  • Size

    6.4MB

  • MD5

    af42dc3d0f6480e17a15383a45ffd0bd

  • SHA1

    47b58f691604ce6e63dbcd4845153733f6e0aaac

  • SHA256

    30d150ce8bc4f6d9173f3e766c2a2b45c3e2d763d498ae08dec001f05d110c3c

  • SHA512

    dd58db6959904c7d20c32d29b7b7586eb5c894bd083fbbab56cc11afa39db2ccb19539232517bc29125e6587a45130dbdde9a94f8b7ecb3fb7c348e4940ce9b9

  • SSDEEP

    196608:+RZ+dltO5I+vEBudlvBlJ7kdltO5I+vEBudl/LGiRdltO5I+vEBudlvBlJ7kdltT:+RZ2yI+vuiJUyI+vuAGCyI+vuiJUyI+g

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 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\af42dc3d0f6480e17a15383a45ffd0bd.exe
    "C:\Users\Admin\AppData\Local\Temp\af42dc3d0f6480e17a15383a45ffd0bd.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4992
    • C:\Users\Admin\AppData\Local\Temp\af42dc3d0f6480e17a15383a45ffd0bd.exe
      C:\Users\Admin\AppData\Local\Temp\af42dc3d0f6480e17a15383a45ffd0bd.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:4140
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\af42dc3d0f6480e17a15383a45ffd0bd.exe" /TN 0Su7L8S745c1 /F
        3⤵
        • Creates scheduled task(s)
        PID:3236
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 0Su7L8S745c1 > C:\Users\Admin\AppData\Local\Temp\TfyBEG.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2884
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN 0Su7L8S745c1
          4⤵
            PID:224
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 612
          3⤵
          • Program crash
          PID:920
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 620
          3⤵
          • Program crash
          PID:3576
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 716
          3⤵
          • Program crash
          PID:3564
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 720
          3⤵
          • Program crash
          PID:884
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 720
          3⤵
          • Program crash
          PID:4848
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 812
          3⤵
          • Program crash
          PID:3796
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 1388
          3⤵
          • Program crash
          PID:5096
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 1912
          3⤵
          • Program crash
          PID:2728
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 2124
          3⤵
          • Program crash
          PID:3300
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 2096
          3⤵
          • Program crash
          PID:3480
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 1952
          3⤵
          • Program crash
          PID:4268
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 2132
          3⤵
          • Program crash
          PID:2644
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 1912
          3⤵
          • Program crash
          PID:3100
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 2176
          3⤵
          • Program crash
          PID:4036
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 2172
          3⤵
          • Program crash
          PID:4584
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 2196
          3⤵
          • Program crash
          PID:4600
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 2248
          3⤵
          • Program crash
          PID:4208
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 712
          3⤵
          • Program crash
          PID:3532
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4140 -ip 4140
      1⤵
        PID:2300
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4140 -ip 4140
        1⤵
          PID:2920
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4140 -ip 4140
          1⤵
            PID:3920
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4140 -ip 4140
            1⤵
              PID:1756
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4140 -ip 4140
              1⤵
                PID:3916
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4140 -ip 4140
                1⤵
                  PID:3000
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4140 -ip 4140
                  1⤵
                    PID:1740
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4140 -ip 4140
                    1⤵
                      PID:1964
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4140 -ip 4140
                      1⤵
                        PID:3128
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4140 -ip 4140
                        1⤵
                          PID:1108
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4140 -ip 4140
                          1⤵
                            PID:5100
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4140 -ip 4140
                            1⤵
                              PID:4940
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4140 -ip 4140
                              1⤵
                                PID:4132
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4140 -ip 4140
                                1⤵
                                  PID:4172
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4140 -ip 4140
                                  1⤵
                                    PID:4832
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 4140 -ip 4140
                                    1⤵
                                      PID:2648
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4140 -ip 4140
                                      1⤵
                                        PID:5092
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4140 -ip 4140
                                        1⤵
                                          PID:4672

                                        Network

                                              MITRE ATT&CK Enterprise v15

                                              Replay Monitor

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                                              Downloads

                                              • C:\Users\Admin\AppData\Local\Temp\TfyBEG.xml

                                                Filesize

                                                1KB

                                                MD5

                                                1f7140eb02f01855551bc24eb98a60db

                                                SHA1

                                                bff0577f29d160d6825640afaa544d4265889d35

                                                SHA256

                                                2817053422de19488b79375fa9457a9b6c14141d4b3f6db9302145e7dadcd3b5

                                                SHA512

                                                116e34277bcb620383a56422e47dd3cd2269a9f2bedbca409827f0aafd53a85f271d6e4b0d5e4346f0426475a7193966a944900205d75b9b1d369d23ba91507a

                                              • C:\Users\Admin\AppData\Local\Temp\af42dc3d0f6480e17a15383a45ffd0bd.exe

                                                Filesize

                                                1.6MB

                                                MD5

                                                bde94ee220f7abd41238c5b3c9e93731

                                                SHA1

                                                8f8734d6bd20dbcaee6da3ffe1fd03e52a5ea3c2

                                                SHA256

                                                06087812da81542eff98a48fbd2bfb949bcb0eb853223ce15c44c37ca552b71d

                                                SHA512

                                                e476450179d1df71064287cec0e5beb81abd7a38b66d169c0cee76ece4c84560a1735ba3065fcdd299881a6892b8f4b50e460b05d9c88eca1677bd846e341989

                                              • memory/4140-17-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB

                                              • memory/4140-15-0x0000000023FD0000-0x000000002404E000-memory.dmp

                                                Filesize

                                                504KB

                                              • memory/4140-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                                Filesize

                                                364KB

                                              • memory/4140-22-0x00000000004B0000-0x000000000051B000-memory.dmp

                                                Filesize

                                                428KB

                                              • memory/4140-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB

                                              • memory/4992-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB

                                              • memory/4992-4-0x0000000024FE0000-0x000000002505E000-memory.dmp

                                                Filesize

                                                504KB

                                              • memory/4992-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                                Filesize

                                                428KB

                                              • memory/4992-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                                Filesize

                                                428KB