Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/01/2024, 05:44

General

  • Target

    4d7e9c8790b6adbc8dfb38cc20908375.exe

  • Size

    2.0MB

  • MD5

    4d7e9c8790b6adbc8dfb38cc20908375

  • SHA1

    c34676442d82fff63f30b1a1f240c0d3279bbba2

  • SHA256

    6620bad180a244593fd51b68a378c9c42d72d5bdab90dc74fccfad7b829b67c4

  • SHA512

    9e477feb5a5ac698e98a29bef7e7ac8d2cb26759f91173ad5eae88ac6aa2a00c167d2269c91c926ff22b63d4b18b2cadbb356eaaabeb1204cb0d7f8b8ff5f9e0

  • SSDEEP

    49152:tqjp7vUfl6iDEcakLz0ibq6yqhhubDY0CgOnQvEn0bcakLz0ibq6yqh:tqjpY8OEcakcibiqhMbMgOn7n0bcakcO

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\4d7e9c8790b6adbc8dfb38cc20908375.exe
    "C:\Users\Admin\AppData\Local\Temp\4d7e9c8790b6adbc8dfb38cc20908375.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2116
    • C:\Users\Admin\AppData\Local\Temp\4d7e9c8790b6adbc8dfb38cc20908375.exe
      C:\Users\Admin\AppData\Local\Temp\4d7e9c8790b6adbc8dfb38cc20908375.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:4360
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\4d7e9c8790b6adbc8dfb38cc20908375.exe" /TN aMYATtOZda0c /F
        3⤵
        • Creates scheduled task(s)
        PID:2212
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN aMYATtOZda0c > C:\Users\Admin\AppData\Local\Temp\MZKST.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3108
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN aMYATtOZda0c
          4⤵
            PID:4812
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 616
          3⤵
          • Program crash
          PID:2544
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 652
          3⤵
          • Program crash
          PID:2708
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 660
          3⤵
          • Program crash
          PID:232
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 740
          3⤵
          • Program crash
          PID:2060
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 728
          3⤵
          • Program crash
          PID:1428
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 820
          3⤵
          • Program crash
          PID:4468
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 1480
          3⤵
          • Program crash
          PID:2808
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 1916
          3⤵
          • Program crash
          PID:5000
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 1952
          3⤵
          • Program crash
          PID:5072
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 1932
          3⤵
          • Program crash
          PID:740
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 1996
          3⤵
          • Program crash
          PID:928
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 1968
          3⤵
          • Program crash
          PID:3188
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 1916
          3⤵
          • Program crash
          PID:1812
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 1972
          3⤵
          • Program crash
          PID:3644
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 2180
          3⤵
          • Program crash
          PID:4144
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 1972
          3⤵
          • Program crash
          PID:1540
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 1940
          3⤵
          • Program crash
          PID:3592
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 720
          3⤵
          • Program crash
          PID:4844
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4360 -ip 4360
      1⤵
        PID:2888
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4360 -ip 4360
        1⤵
          PID:4988
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4360 -ip 4360
          1⤵
            PID:4304
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4360 -ip 4360
            1⤵
              PID:1732
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4360 -ip 4360
              1⤵
                PID:1012
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4360 -ip 4360
                1⤵
                  PID:4704
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4360 -ip 4360
                  1⤵
                    PID:4264
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4360 -ip 4360
                    1⤵
                      PID:3000
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 4360 -ip 4360
                      1⤵
                        PID:2876
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 4360 -ip 4360
                        1⤵
                          PID:1920
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 4360 -ip 4360
                          1⤵
                            PID:3480
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 596 -p 4360 -ip 4360
                            1⤵
                              PID:3044
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 4360 -ip 4360
                              1⤵
                                PID:4476
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 4360 -ip 4360
                                1⤵
                                  PID:4196
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 596 -p 4360 -ip 4360
                                  1⤵
                                    PID:1380
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 4360 -ip 4360
                                    1⤵
                                      PID:2068
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 4360 -ip 4360
                                      1⤵
                                        PID:3692
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 596 -p 4360 -ip 4360
                                        1⤵
                                          PID:2888

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\4d7e9c8790b6adbc8dfb38cc20908375.exe

                                          Filesize

                                          2.0MB

                                          MD5

                                          a6efc66bcfc147a25c68d83a4eaf9587

                                          SHA1

                                          a746dcb4b5a22396b4a9b2bf3c6cf077484b3927

                                          SHA256

                                          5f7db55e248041c5e3ee55bca4db05c861ea6de67c9fd586db7c29ed6260d872

                                          SHA512

                                          861dc891abab9e98f75e4e7937d14e61581a11494175399c8c6d412aab0ec9c63bcda69c2bb09d6b26af581ae5bb83a60286f3d3a615c11234ccc1e0e3313b91

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

                                          Filesize

                                          1KB

                                          MD5

                                          42def48ed32edb7fd75fe0047cd0adcc

                                          SHA1

                                          09d99a7dd98b87d84d7867c3cd39a6cc3865d49f

                                          SHA256

                                          85827ffe5d3440bbbd3f60684bfa749136ec8b1efbe1b044662fcac70b8faffe

                                          SHA512

                                          a33a5c31083f077763474889264a52a8cf172dd01f037ed6f4fceb580133fd5a07cca514ff6dfcf79b17ccc67d00bca6f202b75d328dc987ca5eb345225aa960

                                        • memory/2116-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/2116-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/2116-3-0x0000000025040000-0x00000000250BE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/2116-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4360-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4360-16-0x0000000025050000-0x00000000250CE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4360-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4360-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/4360-34-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB