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Analysis

  • max time kernel
    139s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/12/2023, 10:59

General

  • Target

    86e082e74765aa39e4a6198771f7e05d.exe

  • Size

    2.0MB

  • MD5

    86e082e74765aa39e4a6198771f7e05d

  • SHA1

    54ae44546c5a79506c835ae470db291116272e98

  • SHA256

    7741d85dc23c01412ccbc89c7dd86b6788fd8ced7127ccfa58308100872040ef

  • SHA512

    3c9b4f7a7396cbc87036a8704f7f3bd91bf62f601af13aa904d3a0b1d5b9acb9da0bf41a58ac6be2b410a36f0352a210a932b73c5db02162ef6c36feff3f2e5f

  • SSDEEP

    49152:f/lijYzOYqHnOcKSIcN+9zWFULG+rveZi/aUg46RiyAZ5ScN+9zWFULG+:f/liUzEHnOhSNA9zyULG+rveZiCUgvRL

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\86e082e74765aa39e4a6198771f7e05d.exe
    "C:\Users\Admin\AppData\Local\Temp\86e082e74765aa39e4a6198771f7e05d.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4700
    • C:\Users\Admin\AppData\Local\Temp\86e082e74765aa39e4a6198771f7e05d.exe
      C:\Users\Admin\AppData\Local\Temp\86e082e74765aa39e4a6198771f7e05d.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:4052
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\86e082e74765aa39e4a6198771f7e05d.exe" /TN 91YuFL8m6860 /F
        3⤵
        • Creates scheduled task(s)
        PID:2516
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 91YuFL8m6860 > C:\Users\Admin\AppData\Local\Temp\ybkxIcDTk.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1608
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN 91YuFL8m6860
          4⤵
            PID:4448
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 616
          3⤵
          • Program crash
          PID:2032
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 636
          3⤵
          • Program crash
          PID:2284
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 744
          3⤵
          • Program crash
          PID:4936
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 752
          3⤵
          • Program crash
          PID:4692
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 748
          3⤵
          • Program crash
          PID:2316
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 752
          3⤵
          • Program crash
          PID:4868
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 1464
          3⤵
          • Program crash
          PID:3792
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 1920
          3⤵
          • Program crash
          PID:4076
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 2144
          3⤵
          • Program crash
          PID:4316
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 1932
          3⤵
          • Program crash
          PID:1056
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 2024
          3⤵
          • Program crash
          PID:3788
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 2176
          3⤵
          • Program crash
          PID:4956
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 1996
          3⤵
          • Program crash
          PID:4448
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 2188
          3⤵
          • Program crash
          PID:1316
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 1964
          3⤵
          • Program crash
          PID:4780
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 2188
          3⤵
          • Program crash
          PID:3684
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 1916
          3⤵
          • Program crash
          PID:4312
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 736
          3⤵
          • Program crash
          PID:3680
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4052 -ip 4052
      1⤵
        PID:776
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 4052 -ip 4052
        1⤵
          PID:3236
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4052 -ip 4052
          1⤵
            PID:336
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4052 -ip 4052
            1⤵
              PID:3316
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 4052 -ip 4052
              1⤵
                PID:400
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 4052 -ip 4052
                1⤵
                  PID:4016
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 4052 -ip 4052
                  1⤵
                    PID:3700
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4052 -ip 4052
                    1⤵
                      PID:2224
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 4052 -ip 4052
                      1⤵
                        PID:2044
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4052 -ip 4052
                        1⤵
                          PID:5032
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 4052 -ip 4052
                          1⤵
                            PID:3352
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4052 -ip 4052
                            1⤵
                              PID:1876
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4052 -ip 4052
                              1⤵
                                PID:3156
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4052 -ip 4052
                                1⤵
                                  PID:3736
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4052 -ip 4052
                                  1⤵
                                    PID:3324
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4052 -ip 4052
                                    1⤵
                                      PID:1976
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 4052 -ip 4052
                                      1⤵
                                        PID:4280
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4052 -ip 4052
                                        1⤵
                                          PID:1420

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\86e082e74765aa39e4a6198771f7e05d.exe

                                          Filesize

                                          1.1MB

                                          MD5

                                          bfa6e9bcb53229e4e6466bd946bbb931

                                          SHA1

                                          95bdb2a768fb930f13493f9178e8239b0c5fc909

                                          SHA256

                                          b40dfcc2d8b45fe615b8bb797654d304c39247c8636124f5b65ad203f8be87d6

                                          SHA512

                                          2c6e6704435fb7e69f696a350562434329ded93cfb3ec12575cfb60bb29f6f6efe4fd087772a3035406d12c7fd6ea0c22d393b264fa6007f7869ff46d738e11e

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

                                          Filesize

                                          1KB

                                          MD5

                                          a8522d44ae0c7905bdf050a14d347e28

                                          SHA1

                                          857d37ee5552f3bb8b2aa912c0da1abd7ec6cf3f

                                          SHA256

                                          50f81ee857bf035305e11d2e4c1e43dbb0cf23f148ad8a9d8d70128a4d8c3d33

                                          SHA512

                                          e78532063aa2f60d43895daaf556e62f11257c5243a8ae9199380018e30269790177a359cf6d99d4af90af636c1ececc72e00d785920d55f915f6c200745936c

                                        • memory/4052-15-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4052-17-0x0000000025050000-0x00000000250CE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4052-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4052-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/4052-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4700-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4700-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4700-3-0x0000000001720000-0x000000000179E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4700-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB