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Analysis

  • max time kernel
    124s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/01/2024, 07:36

General

  • Target

    7f42efb26641983a37d9a2e7f6b51ccc.exe

  • Size

    1003KB

  • MD5

    7f42efb26641983a37d9a2e7f6b51ccc

  • SHA1

    155e13a730f20dd9fb2e5a3f833fa0bafa29895f

  • SHA256

    462a9fe8a9ed7cbd38d1bc05fc60d316a56ad4d6602731388c9452bc477c548d

  • SHA512

    cc164e20536c7f141a0c422ca050105b1323365a34c11f624e6bbd17a54baee912788226b65f98f3a7a52be71e1ebb9a3d2a9910840f7eadaeb714d796c0df04

  • SSDEEP

    24576:hAF5TgCFi+FsZinjcH5f+64JRWFULCD+:hO8CFixZinjcN+9zWFULG+

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 1 IoCs
  • 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\7f42efb26641983a37d9a2e7f6b51ccc.exe
    "C:\Users\Admin\AppData\Local\Temp\7f42efb26641983a37d9a2e7f6b51ccc.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4468
    • C:\Users\Admin\AppData\Local\Temp\7f42efb26641983a37d9a2e7f6b51ccc.exe
      C:\Users\Admin\AppData\Local\Temp\7f42efb26641983a37d9a2e7f6b51ccc.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:5088
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\7f42efb26641983a37d9a2e7f6b51ccc.exe" /TN 0Su7L8S745c1 /F
        3⤵
        • Creates scheduled task(s)
        PID:4576
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 604
        3⤵
        • Program crash
        PID:1356
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 0Su7L8S745c1 > C:\Users\Admin\AppData\Local\Temp\58FHZy0.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4280
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 624
        3⤵
        • Program crash
        PID:4332
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 632
        3⤵
        • Program crash
        PID:3180
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 628
        3⤵
        • Program crash
        PID:4784
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 620
        3⤵
        • Program crash
        PID:3164
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 780
        3⤵
        • Program crash
        PID:3032
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 1456
        3⤵
        • Program crash
        PID:4052
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 1908
        3⤵
        • Program crash
        PID:2688
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 2144
        3⤵
        • Program crash
        PID:4704
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 1924
        3⤵
        • Program crash
        PID:3672
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 1992
        3⤵
        • Program crash
        PID:4600
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 1908
        3⤵
        • Program crash
        PID:4368
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 2100
        3⤵
        • Program crash
        PID:4412
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 1980
        3⤵
        • Program crash
        PID:2460
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 1908
        3⤵
        • Program crash
        PID:3984
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 1924
        3⤵
        • Program crash
        PID:1756
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 604
        3⤵
        • Program crash
        PID:2116
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 5088 -ip 5088
    1⤵
      PID:5116
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks.exe /Query /XML /TN 0Su7L8S745c1
      1⤵
        PID:2384
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 5088 -ip 5088
        1⤵
          PID:1016
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 5088 -ip 5088
          1⤵
            PID:3460
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 5088 -ip 5088
            1⤵
              PID:4860
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 5088 -ip 5088
              1⤵
                PID:2132
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 5088 -ip 5088
                1⤵
                  PID:4300
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5088 -ip 5088
                  1⤵
                    PID:4072
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 5088 -ip 5088
                    1⤵
                      PID:1928
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 5088 -ip 5088
                      1⤵
                        PID:2472
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 5088 -ip 5088
                        1⤵
                          PID:1280
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5088 -ip 5088
                          1⤵
                            PID:2968
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5088 -ip 5088
                            1⤵
                              PID:3000
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 5088 -ip 5088
                              1⤵
                                PID:508
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 5088 -ip 5088
                                1⤵
                                  PID:2240
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 5088 -ip 5088
                                  1⤵
                                    PID:3116
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 5088 -ip 5088
                                    1⤵
                                      PID:372
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 5088 -ip 5088
                                      1⤵
                                        PID:2620

                                      Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

                                      • C:\Users\Admin\AppData\Local\Temp\58FHZy0.xml

                                        Filesize

                                        1KB

                                        MD5

                                        154c0093b8efac78daa53224b0a75fdf

                                        SHA1

                                        25ad06afa1934a339c2361e93ba84b3c5ce2ddff

                                        SHA256

                                        0481631db4ec9f324c29ceb5c0e47a2c93136fe996e71eab9b9493833b11c46f

                                        SHA512

                                        cd7c12906d017a518c4961e775d6d1d6244b03a8ca247f2b1200355e01cb8cacf8aab4929fc154f5f5d774fa4f7c1ef33f7272d4615a777ccb5f5c40eb41249c

                                      • C:\Users\Admin\AppData\Local\Temp\7f42efb26641983a37d9a2e7f6b51ccc.exe

                                        Filesize

                                        667KB

                                        MD5

                                        d4a292f60a08b3e5502dd933fc3623a9

                                        SHA1

                                        1ca4be6c3f24cf0a0485d0ceda5caceaa2a9eca5

                                        SHA256

                                        747e764d1131055b1e0b94fb37897927f8b157bbf322a85e1be1bbb1074bf52b

                                        SHA512

                                        2284e2ac8e5a9316df51efcf04cca64bfc14b3f73d4fd1bb6fd5ccd308db98d041984becd9acddcdb117d47f76cb7f8e489a0664c7443b0d37ca580abaec9378

                                      • memory/4468-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/4468-2-0x0000000024FE0000-0x000000002505E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/4468-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/4468-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/5088-15-0x0000000023FE0000-0x000000002405E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/5088-22-0x00000000004B0000-0x000000000051B000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/5088-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                        Filesize

                                        364KB

                                      • memory/5088-18-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/5088-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB