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Analysis

  • max time kernel
    142s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/02/2024, 03:58

General

  • Target

    8b568b6f0d3856bd226b6bdc5dc9be32.exe

  • Size

    1003KB

  • MD5

    8b568b6f0d3856bd226b6bdc5dc9be32

  • SHA1

    15e2013597aaa5542cbd7ede6551c5816e2edd69

  • SHA256

    6330de4a9f0f2136b45712a68a3a9ddffbfbc78115046cca9df6c3d16eff4b1b

  • SHA512

    3b954d20acac9f34ba9b8ac8db563523abc4ab900808d601a8be3e9ed377001708b65b16e6720294117e2a7d22d8e458cbd4c0e1bed0e28f60116ca7d27173a7

  • SSDEEP

    24576:l7WX5Toxhdr3968CcH5f+64JRWFULCD+:l7WX50Vr3968CcN+9zWFULG+

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 1 IoCs
  • 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\8b568b6f0d3856bd226b6bdc5dc9be32.exe
    "C:\Users\Admin\AppData\Local\Temp\8b568b6f0d3856bd226b6bdc5dc9be32.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4676
    • C:\Users\Admin\AppData\Local\Temp\8b568b6f0d3856bd226b6bdc5dc9be32.exe
      C:\Users\Admin\AppData\Local\Temp\8b568b6f0d3856bd226b6bdc5dc9be32.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:5048
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\8b568b6f0d3856bd226b6bdc5dc9be32.exe" /TN EftJtVnu5bdb /F
        3⤵
        • Creates scheduled task(s)
        PID:2376
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN EftJtVnu5bdb > C:\Users\Admin\AppData\Local\Temp\bYYmGK5.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2108
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN EftJtVnu5bdb
          4⤵
            PID:4844
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 612
          3⤵
          • Program crash
          PID:1776
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 648
          3⤵
          • Program crash
          PID:3988
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 656
          3⤵
          • Program crash
          PID:4912
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 732
          3⤵
          • Program crash
          PID:4084
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 732
          3⤵
          • Program crash
          PID:4996
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 716
          3⤵
          • Program crash
          PID:4740
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 1464
          3⤵
          • Program crash
          PID:4504
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 1920
          3⤵
          • Program crash
          PID:3268
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 2144
          3⤵
          • Program crash
          PID:5064
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 1936
          3⤵
          • Program crash
          PID:3620
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 1972
          3⤵
          • Program crash
          PID:2416
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 2000
          3⤵
          • Program crash
          PID:2112
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 1988
          3⤵
          • Program crash
          PID:2868
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 1976
          3⤵
          • Program crash
          PID:404
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 2144
          3⤵
          • Program crash
          PID:2812
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 1972
          3⤵
          • Program crash
          PID:3992
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 2112
          3⤵
          • Program crash
          PID:2912
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 648
          3⤵
          • Program crash
          PID:1004
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 5048 -ip 5048
      1⤵
        PID:4224
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 5048 -ip 5048
        1⤵
          PID:4400
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 5048 -ip 5048
          1⤵
            PID:3956
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 5048 -ip 5048
            1⤵
              PID:3808
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 5048 -ip 5048
              1⤵
                PID:1228
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 5048 -ip 5048
                1⤵
                  PID:4720
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 5048 -ip 5048
                  1⤵
                    PID:4840
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 5048 -ip 5048
                    1⤵
                      PID:2604
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 5048 -ip 5048
                      1⤵
                        PID:2920
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 5048 -ip 5048
                        1⤵
                          PID:2964
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 5048 -ip 5048
                          1⤵
                            PID:3068
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 5048 -ip 5048
                            1⤵
                              PID:3148
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 5048 -ip 5048
                              1⤵
                                PID:1904
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 5048 -ip 5048
                                1⤵
                                  PID:3824
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 5048 -ip 5048
                                  1⤵
                                    PID:5076
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 5048 -ip 5048
                                    1⤵
                                      PID:4500
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 5048 -ip 5048
                                      1⤵
                                        PID:4152
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 5048 -ip 5048
                                        1⤵
                                          PID:4976

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\8b568b6f0d3856bd226b6bdc5dc9be32.exe

                                          Filesize

                                          1003KB

                                          MD5

                                          218c9a21359f2a0f78931b37822605fe

                                          SHA1

                                          e0214744e19cb8805c74dc888cd25ff2884c8cde

                                          SHA256

                                          bbedde6c80ad0148f646eefb128ea28e164efa040ffb3d91daf7d9bac59188bc

                                          SHA512

                                          b16bf5f965e7e54d8498888b14d757d8a4e5581fc299ad3f7cb55faf23ff4bd4c7cdc61d000d703b611da491603a8b8e387d47749a1164b7727a141554b4bdfb

                                        • C:\Users\Admin\AppData\Local\Temp\bYYmGK5.xml

                                          Filesize

                                          1KB

                                          MD5

                                          c31b6dc26467d489b6be20b15387e079

                                          SHA1

                                          fa8c221d7e72a787ac4b5f224c5c2b90fe2ccf5f

                                          SHA256

                                          e2e7dca317f481731b1f302eefbad542b3682130df6db32d1ecf14cdf1448396

                                          SHA512

                                          e4d1f304f7aa58d7508036442eec2122a37fb590ff88907c05cbbff63524e054a4fa15fd94e338830e1aadc8c776bb0c1859f3b8d503c11bc237e8927fb451c3

                                        • memory/4676-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4676-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4676-5-0x0000000024FE0000-0x000000002505E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4676-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/5048-17-0x0000000025040000-0x00000000250BE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/5048-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/5048-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/5048-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/5048-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB