Analysis

  • max time kernel
    138s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-01-2024 06:03

General

  • Target

    4579759f9dd145808485fba6bd256bef.exe

  • Size

    3.2MB

  • MD5

    4579759f9dd145808485fba6bd256bef

  • SHA1

    40ecc6fde208f39d080d3003b51a5449f0afc7e3

  • SHA256

    c7450d8427addb074ec254db1f50c07fcd464a8e998397a88c07a4502bf01fd7

  • SHA512

    a04c2b744e11ba5b7ffa8f411e96f000be60535888eec3c02ab17eaf2d4a35dd2e13de18c701b312492a9d18691f9242eee1c644afbf77059d6d8b3f86faa21f

  • SSDEEP

    98304:MIrjicakcmzU581lcakc8JbJMyQcakcmzU581lcakcO:MIrjidlmg587dlaJMdlmg587dlO

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 17 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\4579759f9dd145808485fba6bd256bef.exe
    "C:\Users\Admin\AppData\Local\Temp\4579759f9dd145808485fba6bd256bef.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1492
    • C:\Users\Admin\AppData\Local\Temp\4579759f9dd145808485fba6bd256bef.exe
      C:\Users\Admin\AppData\Local\Temp\4579759f9dd145808485fba6bd256bef.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:720
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\4579759f9dd145808485fba6bd256bef.exe" /TN 91YuFL8m6860 /F
        3⤵
        • Creates scheduled task(s)
        PID:764
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 91YuFL8m6860 > C:\Users\Admin\AppData\Local\Temp\UEW4YBI.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4036
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN 91YuFL8m6860
          4⤵
            PID:1800
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 616
          3⤵
          • Program crash
          PID:3044
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 632
          3⤵
          • Program crash
          PID:3320
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 640
          3⤵
          • Program crash
          PID:2244
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 732
          3⤵
          • Program crash
          PID:4716
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 744
          3⤵
          • Program crash
          PID:2860
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 740
          3⤵
          • Program crash
          PID:4912
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 1480
          3⤵
          • Program crash
          PID:4196
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 1484
          3⤵
          • Program crash
          PID:4716
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 1924
          3⤵
          • Program crash
          PID:1948
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 1940
          3⤵
          • Program crash
          PID:4376
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 1956
          3⤵
          • Program crash
          PID:4892
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 1940
          3⤵
          • Program crash
          PID:1624
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 2144
          3⤵
          • Program crash
          PID:1916
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 2156
          3⤵
          • Program crash
          PID:2752
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 2132
          3⤵
          • Program crash
          PID:3912
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 2168
          3⤵
          • Program crash
          PID:4708
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 720 -s 1920
          3⤵
          • Program crash
          PID:2132
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 720 -ip 720
      1⤵
        PID:1832
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 720 -ip 720
        1⤵
          PID:3036
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 720 -ip 720
          1⤵
            PID:2628
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 720 -ip 720
            1⤵
              PID:220
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 720 -ip 720
              1⤵
                PID:1524
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 720 -ip 720
                1⤵
                  PID:4352
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 720 -ip 720
                  1⤵
                    PID:4492
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 720 -ip 720
                    1⤵
                      PID:1068
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 720 -ip 720
                      1⤵
                        PID:2512
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 720 -ip 720
                        1⤵
                          PID:4868
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 720 -ip 720
                          1⤵
                            PID:4076
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 720 -ip 720
                            1⤵
                              PID:2376
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 192 -p 720 -ip 720
                              1⤵
                                PID:2868
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 720 -ip 720
                                1⤵
                                  PID:4504
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 720 -ip 720
                                  1⤵
                                    PID:1720
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 720 -ip 720
                                    1⤵
                                      PID:1832
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 720 -ip 720
                                      1⤵
                                        PID:3752

                                      Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

                                      • C:\Users\Admin\AppData\Local\Temp\4579759f9dd145808485fba6bd256bef.exe

                                        Filesize

                                        1.8MB

                                        MD5

                                        45650e7a3f19e14237fd7aa5998873df

                                        SHA1

                                        ce592f6589c46da78ae85ca4940e8bd8e1d2f52f

                                        SHA256

                                        725ff4d96c0f1a87aa276dca9dc570f91215411d03069d9cd79a66a98d5d6656

                                        SHA512

                                        ce857ee8528441ac300bdd39b113827e94619df9adbff356bbf27dd3bf07b9426066e63dee711f48280fe25ed98c989cc8ba04014bb2262a4121b0b968bfb425

                                      • C:\Users\Admin\AppData\Local\Temp\UEW4YBI.xml

                                        Filesize

                                        1KB

                                        MD5

                                        9e30cade789a836c0bd189b343e332bc

                                        SHA1

                                        46671000e17dd59c9903e15c83f08e8f381bacbe

                                        SHA256

                                        725a2eec4b90acaafb6a411ff0c5296b3049aba839e2865d656f815bc62bcd12

                                        SHA512

                                        03bb50b7469cfcaa85446613c87bc5a14444d19e66e6383dba01b3d9c00f7434eaa23293c8e6626e0a84331848d66cf7a4bbca75a423979c401ad087b200d3f6

                                      • memory/720-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/720-20-0x00000000018D0000-0x000000000194E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/720-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/720-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                        Filesize

                                        364KB

                                      • memory/720-32-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/1492-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/1492-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/1492-4-0x0000000001720000-0x000000000179E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/1492-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB