Analysis

  • max time kernel
    124s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/01/2024, 00:08

General

  • Target

    5b9c67404c8ea76a1c494df1e3cdc51f.exe

  • Size

    3.0MB

  • MD5

    5b9c67404c8ea76a1c494df1e3cdc51f

  • SHA1

    199352816d4f1b939a3a38878c32ca33485d264d

  • SHA256

    a9eb31a305e083534c12e0a7c14b75c69f9db6fd7745d59d5da90850db14ea3b

  • SHA512

    701882537395c840079faaa104b72a6247226eeb92cc67172983672c8f9c3a6b4b4c0282f5e9adec16340cccbab6745552399e02bf9ba09f606de05906c9f882

  • SSDEEP

    49152:QlAI51EHjIgwcakLVy5dv5sgpkB5+PcakL7zYtcXMSz0xIcakLVy5dv5sgpkB5+a:QCIH+jIgwcakhy595sgp9cakDAc880xX

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\5b9c67404c8ea76a1c494df1e3cdc51f.exe
    "C:\Users\Admin\AppData\Local\Temp\5b9c67404c8ea76a1c494df1e3cdc51f.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4752
    • C:\Users\Admin\AppData\Local\Temp\5b9c67404c8ea76a1c494df1e3cdc51f.exe
      C:\Users\Admin\AppData\Local\Temp\5b9c67404c8ea76a1c494df1e3cdc51f.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1648
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 616
        3⤵
        • Program crash
        PID:3668
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 1WOV8tOcae1c > C:\Users\Admin\AppData\Local\Temp\vkDoh.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4664
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\5b9c67404c8ea76a1c494df1e3cdc51f.exe" /TN 1WOV8tOcae1c /F
        3⤵
        • Creates scheduled task(s)
        PID:1156
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 632
        3⤵
        • Program crash
        PID:5108
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 724
        3⤵
        • Program crash
        PID:3248
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 632
        3⤵
        • Program crash
        PID:3908
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 728
        3⤵
        • Program crash
        PID:2956
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 740
        3⤵
        • Program crash
        PID:4108
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 1456
        3⤵
        • Program crash
        PID:2492
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 1904
        3⤵
        • Program crash
        PID:3028
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 2144
        3⤵
        • Program crash
        PID:3604
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 2152
        3⤵
        • Program crash
        PID:2208
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 1924
        3⤵
        • Program crash
        PID:4124
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 2184
        3⤵
        • Program crash
        PID:3448
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 1904
        3⤵
        • Program crash
        PID:4464
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 2140
        3⤵
        • Program crash
        PID:4540
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 2148
        3⤵
        • Program crash
        PID:2192
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 1916
        3⤵
        • Program crash
        PID:4904
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 2144
        3⤵
        • Program crash
        PID:3676
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 720
        3⤵
        • Program crash
        PID:1392
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /Query /XML /TN 1WOV8tOcae1c
    1⤵
      PID:2664
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1648 -ip 1648
      1⤵
        PID:3368
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1648 -ip 1648
        1⤵
          PID:3304
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 1648 -ip 1648
          1⤵
            PID:4764
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1648 -ip 1648
            1⤵
              PID:4952
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1648 -ip 1648
              1⤵
                PID:4544
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1648 -ip 1648
                1⤵
                  PID:3720
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 1648 -ip 1648
                  1⤵
                    PID:1808
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1648 -ip 1648
                    1⤵
                      PID:5032
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1648 -ip 1648
                      1⤵
                        PID:1360
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1648 -ip 1648
                        1⤵
                          PID:1796
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1648 -ip 1648
                          1⤵
                            PID:2940
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 1648 -ip 1648
                            1⤵
                              PID:2668
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1648 -ip 1648
                              1⤵
                                PID:4684
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1648 -ip 1648
                                1⤵
                                  PID:4808
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1648 -ip 1648
                                  1⤵
                                    PID:1764
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1648 -ip 1648
                                    1⤵
                                      PID:1080
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 1648 -ip 1648
                                      1⤵
                                        PID:3720
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 1648 -ip 1648
                                        1⤵
                                          PID:4684

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\5b9c67404c8ea76a1c494df1e3cdc51f.exe

                                          Filesize

                                          390KB

                                          MD5

                                          b817c53f7f97e06e4c495d42ca1fd98c

                                          SHA1

                                          212055061bb191dee88efa6069802f569bfb608f

                                          SHA256

                                          8e14acda52366f1c987bd08c7e51ec301d130bcc1f22a6073b5821f4c9b2df2d

                                          SHA512

                                          53697b9f7bf2c847d7167e2b485556a7a720d66f388191d99b205b2858b8c542980f8e708b19296fb5ba042ac06484edac6308f033039ee83e643d573603cf89

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

                                          Filesize

                                          1KB

                                          MD5

                                          ab576487f9d2b5cc459d89a17ae2d689

                                          SHA1

                                          01657f9b04a963c5741bcd0014058c862ab981a9

                                          SHA256

                                          bf31cfc0173f80734e95a0572e9f63b50166a97939eefbc1d2b11ece7cdd4b97

                                          SHA512

                                          78bab8621164ceefd673d7bb7db850109ee845ade59f06d8c6826b761ae758272f783d3c11bc2a772539faf1f7c423f95a4d67e246e4491f540c5cb529ef20cb

                                        • memory/1648-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/1648-17-0x0000000024FE0000-0x000000002505E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/1648-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/1648-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/1648-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4752-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4752-2-0x00000000018C0000-0x000000000193E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4752-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4752-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB