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Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/01/2024, 11:35

General

  • Target

    4b5393c4153339fe1cf0cc93ea0fd33b.exe

  • Size

    1003KB

  • MD5

    4b5393c4153339fe1cf0cc93ea0fd33b

  • SHA1

    fbb8e5f81659c6cd2fb022f85e3baa042aac1786

  • SHA256

    ca879ae4fe0885c4f18006832af6788a153582936a9a86546174b01497109bf8

  • SHA512

    a74800ce1c84dfab8faa997af081d95ef6ce03ea82fe0c9b167d9bac1726c8bbe9f17652f53c18e309ce615a9219246c3013ca5074c52a888e0bf56cc84647ea

  • SSDEEP

    24576:EoiQeuOTjWskJXzEKLc1cjukL2CDYibq6/yqLNaF:9FeuOTjWskJXzLc1cakLz0ibq6yqh

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\4b5393c4153339fe1cf0cc93ea0fd33b.exe
    "C:\Users\Admin\AppData\Local\Temp\4b5393c4153339fe1cf0cc93ea0fd33b.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4964
    • C:\Users\Admin\AppData\Local\Temp\4b5393c4153339fe1cf0cc93ea0fd33b.exe
      C:\Users\Admin\AppData\Local\Temp\4b5393c4153339fe1cf0cc93ea0fd33b.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3176
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\4b5393c4153339fe1cf0cc93ea0fd33b.exe" /TN apJZ6MnXc37d /F
        3⤵
        • Creates scheduled task(s)
        PID:4548
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN apJZ6MnXc37d > C:\Users\Admin\AppData\Local\Temp\XmBlrB1.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:964
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN apJZ6MnXc37d
          4⤵
            PID:3684
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 612
          3⤵
          • Program crash
          PID:4992
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 568
          3⤵
          • Program crash
          PID:4820
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 636
          3⤵
          • Program crash
          PID:860
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 712
          3⤵
          • Program crash
          PID:1760
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 744
          3⤵
          • Program crash
          PID:1928
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 780
          3⤵
          • Program crash
          PID:652
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 1360
          3⤵
          • Program crash
          PID:1388
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 1484
          3⤵
          • Program crash
          PID:1612
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 1948
          3⤵
          • Program crash
          PID:2696
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 2040
          3⤵
          • Program crash
          PID:680
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 1960
          3⤵
          • Program crash
          PID:3496
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 2128
          3⤵
          • Program crash
          PID:3844
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 1948
          3⤵
          • Program crash
          PID:3324
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 2144
          3⤵
          • Program crash
          PID:5004
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 1972
          3⤵
          • Program crash
          PID:1336
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 1276
          3⤵
          • Program crash
          PID:4052
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 2148
          3⤵
          • Program crash
          PID:1684
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 720
          3⤵
          • Program crash
          PID:1424
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3176 -ip 3176
      1⤵
        PID:4336
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3176 -ip 3176
        1⤵
          PID:2880
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3176 -ip 3176
          1⤵
            PID:1292
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3176 -ip 3176
            1⤵
              PID:836
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3176 -ip 3176
              1⤵
                PID:4084
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3176 -ip 3176
                1⤵
                  PID:1448
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3176 -ip 3176
                  1⤵
                    PID:4592
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3176 -ip 3176
                    1⤵
                      PID:920
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3176 -ip 3176
                      1⤵
                        PID:3784
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3176 -ip 3176
                        1⤵
                          PID:2260
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 3176 -ip 3176
                          1⤵
                            PID:1520
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3176 -ip 3176
                            1⤵
                              PID:4120
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3176 -ip 3176
                              1⤵
                                PID:2528
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3176 -ip 3176
                                1⤵
                                  PID:2900
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3176 -ip 3176
                                  1⤵
                                    PID:1880
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3176 -ip 3176
                                    1⤵
                                      PID:1548
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3176 -ip 3176
                                      1⤵
                                        PID:2460
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3176 -ip 3176
                                        1⤵
                                          PID:3532

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\4b5393c4153339fe1cf0cc93ea0fd33b.exe

                                          Filesize

                                          1003KB

                                          MD5

                                          418d680ec0e09a7b62cb6a5f4f1a0d1c

                                          SHA1

                                          544c16bb8d92c823bf3e2c59de92b87e6d1400b7

                                          SHA256

                                          923d6d97875900a421121cb32989206457bd2d10b0182f730d57e88aaf245f0c

                                          SHA512

                                          500cda0841879c9a82ba2005ca5a28cac9da9dc6c0d5ef204255d8b2a9d0b739bfdead1deca86c448007c3c12e7b0815cb88c742c8acbc71cfd9dd0e2ad2f4f3

                                        • C:\Users\Admin\AppData\Local\Temp\XmBlrB1.xml

                                          Filesize

                                          1KB

                                          MD5

                                          a190897df4298d4d102840c97d583549

                                          SHA1

                                          eb2977fb02c5f77fc7394ddc329101ec0bcd60eb

                                          SHA256

                                          47b29fcc3cb4854a3cfef74c00c192709c55a1f0efab060d1922d7b8f42c242c

                                          SHA512

                                          6333f1302c6b22d6f1bef2007739064284a55e0ad46d170cda2947b0d96ca22e3990da9db7bf244ad303fc9c7b65c1d704feef6fe4aba46d80836dc79b73a094

                                        • memory/3176-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/3176-18-0x0000000025080000-0x00000000250FE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/3176-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/3176-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/3176-32-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4964-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4964-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4964-4-0x0000000001730000-0x00000000017AE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4964-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB