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Analysis

  • max time kernel
    145s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/03/2024, 21:09

General

  • Target

    b9aa6bfd6554e10fe7867727654801c7.exe

  • Size

    821KB

  • MD5

    b9aa6bfd6554e10fe7867727654801c7

  • SHA1

    bee8f7aee4bb5000051d1b6f325e65111f527ff5

  • SHA256

    61af64829c5b451da16b284b5f279e98172997f51c1f66438b9f1d752e9057dd

  • SHA512

    69de60cc12288e8306eec3c65319d796f2a6071153b414aeb6385dc1587f11a998a8277602ea9b46ca160a5e21d04fb27dad7221987208cd10a737f04520ad17

  • SSDEEP

    24576:bu5ZyQCunbTTctmOHsyhD7wCgG3cjukL2CDYO:bu50QVbTTAPsUnwHG3cakLz0O

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 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 20 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\b9aa6bfd6554e10fe7867727654801c7.exe
    "C:\Users\Admin\AppData\Local\Temp\b9aa6bfd6554e10fe7867727654801c7.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2000
    • C:\Users\Admin\AppData\Local\Temp\b9aa6bfd6554e10fe7867727654801c7.exe
      C:\Users\Admin\AppData\Local\Temp\b9aa6bfd6554e10fe7867727654801c7.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1684
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\b9aa6bfd6554e10fe7867727654801c7.exe" /TN qPTTkyZ9c33c /F
        3⤵
        • Creates scheduled task(s)
        PID:3616
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN qPTTkyZ9c33c > C:\Users\Admin\AppData\Local\Temp\kHnZJAlI.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:5056
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN qPTTkyZ9c33c
          4⤵
            PID:3308
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 616
          3⤵
          • Program crash
          PID:1528
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 648
          3⤵
          • Program crash
          PID:4056
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 736
          3⤵
          • Program crash
          PID:3952
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 648
          3⤵
          • Program crash
          PID:4856
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 756
          3⤵
          • Program crash
          PID:3704
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 796
          3⤵
          • Program crash
          PID:844
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 1460
          3⤵
          • Program crash
          PID:3268
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 1896
          3⤵
          • Program crash
          PID:212
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 2128
          3⤵
          • Program crash
          PID:3960
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 1912
          3⤵
          • Program crash
          PID:2520
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 1944
          3⤵
          • Program crash
          PID:4136
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 2152
          3⤵
          • Program crash
          PID:2264
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 2128
          3⤵
          • Program crash
          PID:4928
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 1972
          3⤵
          • Program crash
          PID:952
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 1924
          3⤵
          • Program crash
          PID:1780
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 2096
          3⤵
          • Program crash
          PID:2268
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 1976
          3⤵
          • Program crash
          PID:4460
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 2092
          3⤵
          • Program crash
          PID:5004
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 2156
          3⤵
          • Program crash
          PID:4612
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 660
          3⤵
          • Program crash
          PID:4336
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1684 -ip 1684
      1⤵
        PID:1440
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1684 -ip 1684
        1⤵
          PID:4516
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1684 -ip 1684
          1⤵
            PID:3796
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1684 -ip 1684
            1⤵
              PID:2284
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1684 -ip 1684
              1⤵
                PID:2828
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1684 -ip 1684
                1⤵
                  PID:5068
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1684 -ip 1684
                  1⤵
                    PID:2996
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 1684 -ip 1684
                    1⤵
                      PID:2076
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1684 -ip 1684
                      1⤵
                        PID:4876
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1684 -ip 1684
                        1⤵
                          PID:5012
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 180 -p 1684 -ip 1684
                          1⤵
                            PID:816
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 1684 -ip 1684
                            1⤵
                              PID:3380
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 1684 -ip 1684
                              1⤵
                                PID:3944
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 1684 -ip 1684
                                1⤵
                                  PID:4956
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 1684 -ip 1684
                                  1⤵
                                    PID:3124
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1684 -ip 1684
                                    1⤵
                                      PID:1444
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 1684 -ip 1684
                                      1⤵
                                        PID:2424
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 608 -p 1684 -ip 1684
                                        1⤵
                                          PID:4692
                                        • C:\Windows\SysWOW64\WerFault.exe
                                          C:\Windows\SysWOW64\WerFault.exe -pss -s 624 -p 1684 -ip 1684
                                          1⤵
                                            PID:4876
                                          • C:\Windows\SysWOW64\WerFault.exe
                                            C:\Windows\SysWOW64\WerFault.exe -pss -s 620 -p 1684 -ip 1684
                                            1⤵
                                              PID:4544

                                            Network

                                            MITRE ATT&CK Enterprise v15

                                            Replay Monitor

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                                            Downloads

                                            • C:\Users\Admin\AppData\Local\Temp\b9aa6bfd6554e10fe7867727654801c7.exe

                                              Filesize

                                              821KB

                                              MD5

                                              d1ab3484bf82d93f2701a68e59a0ab9c

                                              SHA1

                                              5df4f736dfc67a1bf6435fc3726b1a70a60309e9

                                              SHA256

                                              2ac2875535d5eb8bb7f956572f1b794adcaa1548caa9d708286d3d3bdb226a44

                                              SHA512

                                              13e8c0f990bb3d7a105748fca0afafe8d0cfabc2e2108f46597ee7a18ff0fd8a57dfe3c00c3c16e9c5b9ec7ab9e0407b0bca14006f0ff99e2be9f948efc91502

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

                                              Filesize

                                              1KB

                                              MD5

                                              98de47ea1875a23d1605a8238645822c

                                              SHA1

                                              d6139a0de20809e95ddb7feae719ca55a9358689

                                              SHA256

                                              55affe04e46fa15532fb418a97abaadb6a988d38765850a6afbb3ad95bc9e99f

                                              SHA512

                                              47e797aceb82ad6860347ec32e71fcdfcfe4df9f6d8bd9677c97eb13c694e1950c0dbaa019f6ae8449622f102aa623f67f79a0c26ab57283bf864790ab8632b9

                                            • memory/1684-15-0x0000000023FA0000-0x000000002401E000-memory.dmp

                                              Filesize

                                              504KB

                                            • memory/1684-18-0x0000000000400000-0x000000000065C000-memory.dmp

                                              Filesize

                                              2.4MB

                                            • memory/1684-22-0x00000000004B0000-0x000000000051B000-memory.dmp

                                              Filesize

                                              428KB

                                            • memory/1684-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                              Filesize

                                              364KB

                                            • memory/1684-42-0x0000000000400000-0x000000000065C000-memory.dmp

                                              Filesize

                                              2.4MB

                                            • memory/2000-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                              Filesize

                                              2.4MB

                                            • memory/2000-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                              Filesize

                                              428KB

                                            • memory/2000-3-0x0000000025000000-0x000000002507E000-memory.dmp

                                              Filesize

                                              504KB

                                            • memory/2000-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                              Filesize

                                              428KB