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
    03-02-2024 23:25

General

  • Target

    8da223aa827ea64ed919feabde3c429b.exe

  • Size

    1.6MB

  • MD5

    8da223aa827ea64ed919feabde3c429b

  • SHA1

    83be83f7023429e332800066370be0fc417859eb

  • SHA256

    783aa51cfb370e1c06c0a119cdec22dca35f4ab8536e7d2dd05d79fdf0dfea2e

  • SHA512

    7f4c99c37dfd1c7eb7e55b9fc24836be7439612880a5b9205efebc03ddca9230b7de894dd78c6b6b3678dd620c154961eb1e2766af70a8f8294c69cd70944226

  • SSDEEP

    49152:lLTS3BvScakLz03fnR8KyyLWU9Dcr7cakLz0O:lLTQZScakcvn+RyS+gr7cakcO

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\8da223aa827ea64ed919feabde3c429b.exe
    "C:\Users\Admin\AppData\Local\Temp\8da223aa827ea64ed919feabde3c429b.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1312
    • C:\Users\Admin\AppData\Local\Temp\8da223aa827ea64ed919feabde3c429b.exe
      C:\Users\Admin\AppData\Local\Temp\8da223aa827ea64ed919feabde3c429b.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:872
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\8da223aa827ea64ed919feabde3c429b.exe" /TN 0Su7L8S745c1 /F
        3⤵
        • Creates scheduled task(s)
        PID:912
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 0Su7L8S745c1 > C:\Users\Admin\AppData\Local\Temp\ncLKxv.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:220
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 604
        3⤵
        • Program crash
        PID:4564
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 636
        3⤵
        • Program crash
        PID:3636
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 644
        3⤵
        • Program crash
        PID:836
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 644
        3⤵
        • Program crash
        PID:1612
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 764
        3⤵
        • Program crash
        PID:4144
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 720
        3⤵
        • Program crash
        PID:1688
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 1456
        3⤵
        • Program crash
        PID:3428
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 1912
        3⤵
        • Program crash
        PID:4112
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 2144
        3⤵
        • Program crash
        PID:3100
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 1924
        3⤵
        • Program crash
        PID:4936
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 1868
        3⤵
        • Program crash
        PID:2088
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 1944
        3⤵
        • Program crash
        PID:1164
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 1964
        3⤵
        • Program crash
        PID:4844
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 2160
        3⤵
        • Program crash
        PID:1628
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 2100
        3⤵
        • Program crash
        PID:3016
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 1952
        3⤵
        • Program crash
        PID:3496
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 648
        3⤵
        • Program crash
        PID:3380
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /Query /XML /TN 0Su7L8S745c1
    1⤵
      PID:1876
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 872 -ip 872
      1⤵
        PID:1944
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 872 -ip 872
        1⤵
          PID:3952
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 872 -ip 872
          1⤵
            PID:4304
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 872 -ip 872
            1⤵
              PID:3308
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 872 -ip 872
              1⤵
                PID:4928
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 872 -ip 872
                1⤵
                  PID:3520
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 872 -ip 872
                  1⤵
                    PID:880
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 872 -ip 872
                    1⤵
                      PID:2920
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 872 -ip 872
                      1⤵
                        PID:412
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 620 -p 872 -ip 872
                        1⤵
                          PID:4268
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 612 -p 872 -ip 872
                          1⤵
                            PID:2168
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 620 -p 872 -ip 872
                            1⤵
                              PID:3368
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 616 -p 872 -ip 872
                              1⤵
                                PID:2452
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 872 -ip 872
                                1⤵
                                  PID:3212
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 636 -p 872 -ip 872
                                  1⤵
                                    PID:1956
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 624 -p 872 -ip 872
                                    1⤵
                                      PID:3632
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 652 -p 872 -ip 872
                                      1⤵
                                        PID:2556

                                      Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

                                      • C:\Users\Admin\AppData\Local\Temp\8da223aa827ea64ed919feabde3c429b.exe

                                        Filesize

                                        163KB

                                        MD5

                                        23641b4f164c1af1dd2c1d9d5d9fb36b

                                        SHA1

                                        04e909d099442b15b40bc95f84e829731e58555c

                                        SHA256

                                        8b176899c7b4204f53e57efac4da620bfc1d326dba5b1293a6790a7bea3d49c7

                                        SHA512

                                        28ec7678b8432d5ab130b3ea837598cfc8e0196265bf605f07eff0d1c749c7edd57679dcc3f0085983863a667852aa430f4857d53f2b49abe0307a47927e3db6

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

                                        Filesize

                                        1KB

                                        MD5

                                        acc5bd569dec49439acdbf8d07f75698

                                        SHA1

                                        af0120f95e5c45877c76b3d133d7a61ab5abddea

                                        SHA256

                                        228fcd8e2459824ced1be591033debcbd2cff25ae96f90a1acf87dcd7edb721c

                                        SHA512

                                        0631492e1f49c19ebae5ba21173bbc7fe3344632d4c71649d01a60133458bb876900b2b9ef3c0e6e96fadd34964be7f042d5a6cd9b9fb3b58bc49fe7b5eff804

                                      • memory/872-15-0x0000000001720000-0x000000000179E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/872-18-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/872-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                        Filesize

                                        364KB

                                      • memory/872-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/872-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/1312-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/1312-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/1312-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/1312-7-0x0000000001730000-0x00000000017AE000-memory.dmp

                                        Filesize

                                        504KB