Analysis

  • max time kernel
    141s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-12-2023 11:06

General

  • Target

    16c154d72e9da9ff6fe534df4907518c.exe

  • Size

    2.0MB

  • MD5

    16c154d72e9da9ff6fe534df4907518c

  • SHA1

    8c8f48c2ad147063a85b6c160612e87f5f2b0b29

  • SHA256

    31a482255f322d4e71bb6f5db518fd8ba52ec3ca0f89fd8f4ffba39aacb50f71

  • SHA512

    8c261f2b422244ec8caec1a8caddaff8458527dd2a23cd58e1e485e483d9c231180da0286b917dc589133f662cedec28b5b8162c81347f210b6349b460c8c33c

  • SSDEEP

    49152:m4zdRcN+9zWFULG+WculXWgEoi4tGN2noQcN+9zWFULG+:fdyA9zyULG+WculXWgEo6Ino1A9zyULp

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 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\16c154d72e9da9ff6fe534df4907518c.exe
    "C:\Users\Admin\AppData\Local\Temp\16c154d72e9da9ff6fe534df4907518c.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4936
    • C:\Users\Admin\AppData\Local\Temp\16c154d72e9da9ff6fe534df4907518c.exe
      C:\Users\Admin\AppData\Local\Temp\16c154d72e9da9ff6fe534df4907518c.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1284
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\16c154d72e9da9ff6fe534df4907518c.exe" /TN Wxpz1JCma418 /F
        3⤵
        • Creates scheduled task(s)
        PID:4536
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN Wxpz1JCma418 > C:\Users\Admin\AppData\Local\Temp\Fbp3ylnd.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2776
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 604
        3⤵
        • Program crash
        PID:1280
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 632
        3⤵
        • Program crash
        PID:768
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 640
        3⤵
        • Program crash
        PID:4052
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 736
        3⤵
        • Program crash
        PID:540
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 736
        3⤵
        • Program crash
        PID:2244
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 784
        3⤵
        • Program crash
        PID:4340
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 1460
        3⤵
        • Program crash
        PID:1560
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 1920
        3⤵
        • Program crash
        PID:2244
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 2132
        3⤵
        • Program crash
        PID:4440
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 1932
        3⤵
        • Program crash
        PID:544
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 2108
        3⤵
        • Program crash
        PID:372
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 2148
        3⤵
        • Program crash
        PID:1256
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 2112
        3⤵
        • Program crash
        PID:1832
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 2160
        3⤵
        • Program crash
        PID:1224
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 2176
        3⤵
        • Program crash
        PID:5032
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 1944
        3⤵
        • Program crash
        PID:4900
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 628
        3⤵
        • Program crash
        PID:4984
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /Query /XML /TN Wxpz1JCma418
    1⤵
      PID:792
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1284 -ip 1284
      1⤵
        PID:3536
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1284 -ip 1284
        1⤵
          PID:440
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1284 -ip 1284
          1⤵
            PID:3648
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1284 -ip 1284
            1⤵
              PID:4076
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1284 -ip 1284
              1⤵
                PID:2056
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1284 -ip 1284
                1⤵
                  PID:1852
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1284 -ip 1284
                  1⤵
                    PID:2440
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1284 -ip 1284
                    1⤵
                      PID:2260
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1284 -ip 1284
                      1⤵
                        PID:3824
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1284 -ip 1284
                        1⤵
                          PID:704
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1284 -ip 1284
                          1⤵
                            PID:3484
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1284 -ip 1284
                            1⤵
                              PID:4620
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1284 -ip 1284
                              1⤵
                                PID:1336
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1284 -ip 1284
                                1⤵
                                  PID:1280
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 1284 -ip 1284
                                  1⤵
                                    PID:5080
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1284 -ip 1284
                                    1⤵
                                      PID:1176
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 1284 -ip 1284
                                      1⤵
                                        PID:4504

                                      Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

                                      • C:\Users\Admin\AppData\Local\Temp\16c154d72e9da9ff6fe534df4907518c.exe

                                        Filesize

                                        2.0MB

                                        MD5

                                        6a0216f676fc8216ef0d244ed79740ba

                                        SHA1

                                        582b55cc34852efc0db8421ad8c45343dcdf9cff

                                        SHA256

                                        8791323b8e91deb41f7db80325b62e66f0bd2bb19e9c3d1e322d817630a800b4

                                        SHA512

                                        1a622fb3438a2602981431595e2c567babe5652f70f3c4ecd2f7537f5df2c01d0f15f1ed0fd06b73e3ce38034179928ed894c28815f8599cfd128ed7fe91b14f

                                      • C:\Users\Admin\AppData\Local\Temp\Fbp3ylnd.xml

                                        Filesize

                                        1KB

                                        MD5

                                        b11838b2432c69ad929f772feaceabe1

                                        SHA1

                                        826c8523b6beda6f7e8d8d5d35565681327b6dfd

                                        SHA256

                                        d6d46fca6cf6ac1db184ef3957d48cf6b5a73d2dfbab315fe2e69527b75a60ef

                                        SHA512

                                        626922b138e12c794eada43c1cc337976284f645c330cc063ad258e99de55f041a9f769c7ced915bfe6c2b90718aa75e053aa54d8b504dad4c63e5dfcf6f2696

                                      • memory/1284-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/1284-16-0x0000000001720000-0x000000000179E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/1284-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                        Filesize

                                        364KB

                                      • memory/1284-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/1284-32-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/4936-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/4936-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/4936-3-0x0000000001720000-0x000000000179E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/4936-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB