Analysis

  • max time kernel
    144s
  • 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
    22-12-2023 08:19

General

  • Target

    7cbffae4e51c7ff3c388f43a00910a27.exe

  • Size

    3.2MB

  • MD5

    7cbffae4e51c7ff3c388f43a00910a27

  • SHA1

    017a0e8e2662767e88474314c723d1e729fe8dcd

  • SHA256

    32b2cf0613405b5e98aeb2fcd102d9f640f5739cd145ae812ff8ccac334f9f7e

  • SHA512

    cceb954e084460048128b5dae9d1aad25632b79a2fceb137d707501fa14b3564a81b34741f0a0a4eae1ecedefda7e052e07534fe9e1184047264c1a6b1325bf7

  • SSDEEP

    98304:X5+sA34nbMWoscakchS87ccakcvR+yIboHACcakchS87ccakcO:XssAGjdlhS87cdlp+tbkldlhS87cdlO

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\7cbffae4e51c7ff3c388f43a00910a27.exe
    "C:\Users\Admin\AppData\Local\Temp\7cbffae4e51c7ff3c388f43a00910a27.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:640
    • C:\Users\Admin\AppData\Local\Temp\7cbffae4e51c7ff3c388f43a00910a27.exe
      C:\Users\Admin\AppData\Local\Temp\7cbffae4e51c7ff3c388f43a00910a27.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3304
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\7cbffae4e51c7ff3c388f43a00910a27.exe" /TN 1WOV8tOcae1c /F
        3⤵
        • Creates scheduled task(s)
        PID:4744
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 1WOV8tOcae1c > C:\Users\Admin\AppData\Local\Temp\OIimdo.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2520
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN 1WOV8tOcae1c
          4⤵
            PID:3132
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 612
          3⤵
          • Program crash
          PID:3224
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 636
          3⤵
          • Program crash
          PID:724
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 716
          3⤵
          • Program crash
          PID:2024
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 720
          3⤵
          • Program crash
          PID:364
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 636
          3⤵
          • Program crash
          PID:2992
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 780
          3⤵
          • Program crash
          PID:2960
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 1464
          3⤵
          • Program crash
          PID:2624
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 1920
          3⤵
          • Program crash
          PID:3940
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 2132
          3⤵
          • Program crash
          PID:2020
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 2104
          3⤵
          • Program crash
          PID:4152
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 1932
          3⤵
          • Program crash
          PID:540
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 1924
          3⤵
          • Program crash
          PID:2208
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 2112
          3⤵
          • Program crash
          PID:1916
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 2136
          3⤵
          • Program crash
          PID:4312
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 2164
          3⤵
          • Program crash
          PID:4540
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 2000
          3⤵
          • Program crash
          PID:1092
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 1972
          3⤵
          • Program crash
          PID:724
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 712
          3⤵
          • Program crash
          PID:460
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3304 -ip 3304
      1⤵
        PID:2484
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3304 -ip 3304
        1⤵
          PID:1200
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3304 -ip 3304
          1⤵
            PID:1080
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3304 -ip 3304
            1⤵
              PID:2472
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3304 -ip 3304
              1⤵
                PID:992
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3304 -ip 3304
                1⤵
                  PID:3588
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3304 -ip 3304
                  1⤵
                    PID:2360
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3304 -ip 3304
                    1⤵
                      PID:2056
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3304 -ip 3304
                      1⤵
                        PID:4432
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3304 -ip 3304
                        1⤵
                          PID:3804
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3304 -ip 3304
                          1⤵
                            PID:2664
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3304 -ip 3304
                            1⤵
                              PID:324
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3304 -ip 3304
                              1⤵
                                PID:4648
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3304 -ip 3304
                                1⤵
                                  PID:4356
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3304 -ip 3304
                                  1⤵
                                    PID:3116
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3304 -ip 3304
                                    1⤵
                                      PID:4052
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3304 -ip 3304
                                      1⤵
                                        PID:3988
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3304 -ip 3304
                                        1⤵
                                          PID:2888

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\7cbffae4e51c7ff3c388f43a00910a27.exe

                                          Filesize

                                          3.2MB

                                          MD5

                                          312a7f63bab3a97661dede663527764b

                                          SHA1

                                          6bad639427862f4dc99977df10dcd22303e13fc2

                                          SHA256

                                          584c9703ef3ac7336c6cfa52652a92bc2f3910caa73e38224029470397729d9e

                                          SHA512

                                          1b9436c816215dce6d5c13076ea5fdbd1288d0530ccee45af9904cc10f317967d998e3835a5c9484137628fe49d896d56f52d762a2047ac4b1b9b2c6489493b5

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

                                          Filesize

                                          1KB

                                          MD5

                                          1fd069a0863913a729ef99b43774cd59

                                          SHA1

                                          131c5832642e04780398a1f485b428347e2c1c19

                                          SHA256

                                          8058fd1e9eef1900bea1e05369a3ace806659f26d0e4f1fcb33553845cb577d6

                                          SHA512

                                          caefa6138ba89cb511a259402006803655b4893c8bdccbfb26b1dabc4ead2a377e7a323155672acebd39cc96f205c913e5f7ed15116d5abf138e671e90b123c8

                                        • memory/640-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/640-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/640-4-0x0000000001730000-0x00000000017AE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/640-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/3304-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/3304-16-0x0000000025060000-0x00000000250DE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/3304-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/3304-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/3304-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB