Analysis

  • max time kernel
    143s
  • 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
    03/02/2024, 21:14

General

  • Target

    8d5cba9b6313edcc5c2f4e85255ac96b.exe

  • Size

    3.9MB

  • MD5

    8d5cba9b6313edcc5c2f4e85255ac96b

  • SHA1

    e6c4de2b49091b944e0f62b111b2be0711db4e2f

  • SHA256

    af2e7e43a216305e80c010e0945ab4a5fd3b1a3ee828b996d1b3ccdd01775909

  • SHA512

    4e97883bf4546d5179e1d3117e34b93e4c36e205db72ea462934eeba86d1b266128a7456d09c3687637ee31e092d00ca3bdc64d38d13cd9653a90716946ea9cb

  • SSDEEP

    98304:YOF34pvgf7OA9zyULG+hKaaApDhILtA9zyULG+S7Ja8hbDxIXA9zyULG+hKaaApH:YON4NgrzLqwhILqzLq8aDxhzLqwhILqK

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 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\8d5cba9b6313edcc5c2f4e85255ac96b.exe
    "C:\Users\Admin\AppData\Local\Temp\8d5cba9b6313edcc5c2f4e85255ac96b.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4676
    • C:\Users\Admin\AppData\Local\Temp\8d5cba9b6313edcc5c2f4e85255ac96b.exe
      C:\Users\Admin\AppData\Local\Temp\8d5cba9b6313edcc5c2f4e85255ac96b.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3684
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\8d5cba9b6313edcc5c2f4e85255ac96b.exe" /TN Wxpz1JCma418 /F
        3⤵
        • Creates scheduled task(s)
        PID:2360
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN Wxpz1JCma418 > C:\Users\Admin\AppData\Local\Temp\tkakJZe.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1448
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN Wxpz1JCma418
          4⤵
            PID:4040
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 604
          3⤵
          • Program crash
          PID:4980
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 652
          3⤵
          • Program crash
          PID:3996
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 724
          3⤵
          • Program crash
          PID:3372
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 732
          3⤵
          • Program crash
          PID:4440
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 732
          3⤵
          • Program crash
          PID:4060
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 780
          3⤵
          • Program crash
          PID:4172
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 1468
          3⤵
          • Program crash
          PID:3608
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 1908
          3⤵
          • Program crash
          PID:2132
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 2148
          3⤵
          • Program crash
          PID:1460
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 1924
          3⤵
          • Program crash
          PID:2136
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 2172
          3⤵
          • Program crash
          PID:2472
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 2188
          3⤵
          • Program crash
          PID:4936
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 2276
          3⤵
          • Program crash
          PID:876
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 2108
          3⤵
          • Program crash
          PID:1936
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 2276
          3⤵
          • Program crash
          PID:1276
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 2112
          3⤵
          • Program crash
          PID:4784
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 660
          3⤵
          • Program crash
          PID:4736
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3684 -ip 3684
      1⤵
        PID:4452
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 3684 -ip 3684
        1⤵
          PID:1328
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 192 -p 3684 -ip 3684
          1⤵
            PID:1692
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3684 -ip 3684
            1⤵
              PID:3220
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3684 -ip 3684
              1⤵
                PID:3964
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 3684 -ip 3684
                1⤵
                  PID:1408
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 3684 -ip 3684
                  1⤵
                    PID:4984
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3684 -ip 3684
                    1⤵
                      PID:1504
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3684 -ip 3684
                      1⤵
                        PID:1472
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 3684 -ip 3684
                        1⤵
                          PID:3624
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 3684 -ip 3684
                          1⤵
                            PID:2144
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3684 -ip 3684
                            1⤵
                              PID:5000
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3684 -ip 3684
                              1⤵
                                PID:2640
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3684 -ip 3684
                                1⤵
                                  PID:2688
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3684 -ip 3684
                                  1⤵
                                    PID:460
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 192 -p 3684 -ip 3684
                                    1⤵
                                      PID:2900
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 3684 -ip 3684
                                      1⤵
                                        PID:2964

                                      Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

                                      • C:\Users\Admin\AppData\Local\Temp\8d5cba9b6313edcc5c2f4e85255ac96b.exe

                                        Filesize

                                        3.9MB

                                        MD5

                                        20b7ed4ed3df50f3bd14980d308b31d7

                                        SHA1

                                        2926696c387cffd1cf1b3e2a38345c141d5b7c52

                                        SHA256

                                        5963d0fa8a55177924984f955e0c83879a682870077089147e2e11a7c3a7700d

                                        SHA512

                                        d64bf462b136544599fabb9261684934bd68401096764d5294fc4d77622f3285559772d25a697869baa60e523b102da67bc025b48a6d1b1551696ea737eef8d8

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

                                        Filesize

                                        1KB

                                        MD5

                                        c87288fc7310521aede38876d4049cc6

                                        SHA1

                                        49d803a3a52dfb3213edd8a987a8a0445b751401

                                        SHA256

                                        f60dc0525bc3cbf26a6dec6327b7db3897a0e7cd0f5c8f4a72aadd48337c9457

                                        SHA512

                                        d19f48d53b4078c8995307a454707f1377ba11b1043d1ac1ce0cefb7827ef37e1ecfa197343495a31c49402ea10777aec34ca21c3ffbe7ca37e8fcab9a8586f4

                                      • memory/3684-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/3684-17-0x0000000001720000-0x000000000179E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/3684-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                        Filesize

                                        364KB

                                      • memory/3684-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/3684-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/4676-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/4676-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/4676-2-0x0000000026070000-0x00000000260EE000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/4676-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB