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Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/03/2024, 17:05

General

  • Target

    d40d59b1ec9e2cdc48978a48f862bab5.exe

  • Size

    3.9MB

  • MD5

    d40d59b1ec9e2cdc48978a48f862bab5

  • SHA1

    6c3b1b4cf58bfff680e378417ffb05f0f9026324

  • SHA256

    7886aade8eadc68c1081dc2419c0f73fdeae1769719f9e913c2fcacc35955991

  • SHA512

    d0483de841a452e87cd25e48af8881b9a1d8b297e70c2f42d98e5e357d918db7138048f72f6331ca45c0c50f9b653bf4ebdee9814621aed9ac50beeffba8a452

  • SSDEEP

    98304:VCgbHrSa1ixUl1mcakcibiqhAzvN5wxJccakcibiqhaFZUFZmh49TUXcakcibiqn:VzbLSwfmdlirUNSOdlir8zwtTUXdlirB

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 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\d40d59b1ec9e2cdc48978a48f862bab5.exe
    "C:\Users\Admin\AppData\Local\Temp\d40d59b1ec9e2cdc48978a48f862bab5.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1504
    • C:\Users\Admin\AppData\Local\Temp\d40d59b1ec9e2cdc48978a48f862bab5.exe
      C:\Users\Admin\AppData\Local\Temp\d40d59b1ec9e2cdc48978a48f862bab5.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1716
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\d40d59b1ec9e2cdc48978a48f862bab5.exe" /TN yexRWRcj83eb /F
        3⤵
        • Creates scheduled task(s)
        PID:880
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN yexRWRcj83eb > C:\Users\Admin\AppData\Local\Temp\N9cIkF5.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4260
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN yexRWRcj83eb
          4⤵
            PID:1148
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 616
          3⤵
          • Program crash
          PID:656
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 624
          3⤵
          • Program crash
          PID:1824
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 644
          3⤵
          • Program crash
          PID:2704
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 712
          3⤵
          • Program crash
          PID:1524
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 776
          3⤵
          • Program crash
          PID:956
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 644
          3⤵
          • Program crash
          PID:1156
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 1464
          3⤵
          • Program crash
          PID:2300
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 1932
          3⤵
          • Program crash
          PID:3856
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 2148
          3⤵
          • Program crash
          PID:2328
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 1944
          3⤵
          • Program crash
          PID:5008
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 1968
          3⤵
          • Program crash
          PID:4256
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 2108
          3⤵
          • Program crash
          PID:4604
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 1628
          3⤵
          • Program crash
          PID:3936
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 1972
          3⤵
          • Program crash
          PID:1316
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 1980
          3⤵
          • Program crash
          PID:4992
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 2188
          3⤵
          • Program crash
          PID:4088
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 2104
          3⤵
          • Program crash
          PID:3416
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 624
          3⤵
          • Program crash
          PID:1664
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 1716 -ip 1716
      1⤵
        PID:972
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1716 -ip 1716
        1⤵
          PID:1696
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 1716 -ip 1716
          1⤵
            PID:2860
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 1716 -ip 1716
            1⤵
              PID:1848
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1716 -ip 1716
              1⤵
                PID:4728
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1716 -ip 1716
                1⤵
                  PID:2376
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1716 -ip 1716
                  1⤵
                    PID:4248
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1716 -ip 1716
                    1⤵
                      PID:2956
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1716 -ip 1716
                      1⤵
                        PID:2696
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 1716 -ip 1716
                        1⤵
                          PID:4204
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1716 -ip 1716
                          1⤵
                            PID:3188
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1716 -ip 1716
                            1⤵
                              PID:5096
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1716 -ip 1716
                              1⤵
                                PID:424
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1716 -ip 1716
                                1⤵
                                  PID:2216
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1716 -ip 1716
                                  1⤵
                                    PID:3420
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1716 -ip 1716
                                    1⤵
                                      PID:396
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1716 -ip 1716
                                      1⤵
                                        PID:2216
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 396 -p 1716 -ip 1716
                                        1⤵
                                          PID:2100

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\N9cIkF5.xml

                                          Filesize

                                          1KB

                                          MD5

                                          fd39ecaf31ddaea974acfc4c786296a6

                                          SHA1

                                          845c0fc1c7be31985725e38030b514a0ad86e82c

                                          SHA256

                                          7862b68758aa5557baf549528e069ad441306acbdd2b8356b2f8e5b2b3a1dab5

                                          SHA512

                                          5ec5de279cc7b47534303c9180cc680bffaf88b5fc8ba04ec335a77fed9fccd23f9c109323b2d7e153f2b7528613c1cf9d6d6463c54956697085b922330de81e

                                        • C:\Users\Admin\AppData\Local\Temp\d40d59b1ec9e2cdc48978a48f862bab5.exe

                                          Filesize

                                          3.9MB

                                          MD5

                                          8c0348c94d2560854eef4ca99855d679

                                          SHA1

                                          83b3678a8783363c18ae1843134234a06da165cf

                                          SHA256

                                          32d4c95f3be6810a1aec550893f4783c14b8880a7295ca4d979c693504c75be6

                                          SHA512

                                          19d742794d4b2efcf8c6dfc76cbc69c868096d39ac3bdacce84c653aaea4ebc5dc5a6e48114aadb7657ecab978d8bd72c54555e5187a7547c6ede3d717a369c4

                                        • memory/1504-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/1504-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/1504-3-0x0000000001660000-0x00000000016DE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/1504-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/1716-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/1716-16-0x00000000018A0000-0x000000000191E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/1716-22-0x00000000004B0000-0x000000000051B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/1716-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/1716-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB