Analysis

  • max time kernel
    124s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/12/2023, 04:30

General

  • Target

    28393b06de2441ff56d4f1fa40647252.exe

  • Size

    6.4MB

  • MD5

    28393b06de2441ff56d4f1fa40647252

  • SHA1

    de14be33ad15768463763e2a0753e4b676da7e0b

  • SHA256

    5798207abfe2bc9315cf4146bcd7900d24f59a5abadd27b5a8acac007cad8fa3

  • SHA512

    a739acdbea46822392dbd84b386a7576698804f225e41e03248b8a3f16b95d6e65b1d7771a2c353b606a9133dd4cbb4119452a4121683d90ace0b4ef969fab83

  • SSDEEP

    196608:zeXu2dl7odlGf6dl7odlvU+Spgdl7odlGf6dl7odlO:SXuKHmPkHmj

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
  • 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\28393b06de2441ff56d4f1fa40647252.exe
    "C:\Users\Admin\AppData\Local\Temp\28393b06de2441ff56d4f1fa40647252.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1900
    • C:\Users\Admin\AppData\Local\Temp\28393b06de2441ff56d4f1fa40647252.exe
      C:\Users\Admin\AppData\Local\Temp\28393b06de2441ff56d4f1fa40647252.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:2640
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\28393b06de2441ff56d4f1fa40647252.exe" /TN 0Su7L8S745c1 /F
        3⤵
        • Creates scheduled task(s)
        PID:4700
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 608
        3⤵
        • Program crash
        PID:3156
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 0Su7L8S745c1 > C:\Users\Admin\AppData\Local\Temp\1xOiyM.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2648
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 648
        3⤵
        • Program crash
        PID:2972
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 656
        3⤵
        • Program crash
        PID:4940
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 652
        3⤵
        • Program crash
        PID:592
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 736
        3⤵
        • Program crash
        PID:1920
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 756
        3⤵
        • Program crash
        PID:4680
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 1460
        3⤵
        • Program crash
        PID:2376
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 1908
        3⤵
        • Program crash
        PID:640
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 2144
        3⤵
        • Program crash
        PID:3516
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 2096
        3⤵
        • Program crash
        PID:3364
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 1920
        3⤵
        • Program crash
        PID:920
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 1928
        3⤵
        • Program crash
        PID:1576
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 1908
        3⤵
        • Program crash
        PID:5040
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 1940
        3⤵
        • Program crash
        PID:2472
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 2108
        3⤵
        • Program crash
        PID:4600
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 1940
        3⤵
        • Program crash
        PID:1136
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 1984
        3⤵
        • Program crash
        PID:4068
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 620
        3⤵
        • Program crash
        PID:1148
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2640 -ip 2640
    1⤵
      PID:3856
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks.exe /Query /XML /TN 0Su7L8S745c1
      1⤵
        PID:4300
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2640 -ip 2640
        1⤵
          PID:4052
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 2640 -ip 2640
          1⤵
            PID:3660
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2640 -ip 2640
            1⤵
              PID:3996
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2640 -ip 2640
              1⤵
                PID:1876
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2640 -ip 2640
                1⤵
                  PID:2488
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 2640 -ip 2640
                  1⤵
                    PID:3408
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2640 -ip 2640
                    1⤵
                      PID:4740
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2640 -ip 2640
                      1⤵
                        PID:3568
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2640 -ip 2640
                        1⤵
                          PID:1528
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2640 -ip 2640
                          1⤵
                            PID:4508
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 2640 -ip 2640
                            1⤵
                              PID:1148
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2640 -ip 2640
                              1⤵
                                PID:1448
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 2640 -ip 2640
                                1⤵
                                  PID:3552
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 2640 -ip 2640
                                  1⤵
                                    PID:64
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 2640 -ip 2640
                                    1⤵
                                      PID:3468
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2640 -ip 2640
                                      1⤵
                                        PID:3116
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 2640 -ip 2640
                                        1⤵
                                          PID:4536

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\28393b06de2441ff56d4f1fa40647252.exe

                                          Filesize

                                          381KB

                                          MD5

                                          3d5327791efdd1d0fe489610b7031555

                                          SHA1

                                          eb59b2435513146fb059d33ea1e727ffeecc96ad

                                          SHA256

                                          b100b438fa91606f3fa557e3d3a97b9ce16d2d4cc57aa0493db218f33906fa31

                                          SHA512

                                          9efa4dfe32046506e0bf6194e5f6983ea82ccd68e3de77b39c75712de8be670aeab0e8b65b632981c78a8f5ec44aad2cad81c56d93457acab5574d44ef39a0d2

                                        • memory/1900-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/1900-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/1900-7-0x0000000001720000-0x000000000179E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/1900-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/2640-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/2640-22-0x00000000004B0000-0x000000000051B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/2640-18-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/2640-15-0x00000000016E0000-0x000000000175E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/2640-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB