Analysis

  • max time kernel
    138s
  • max time network
    134s
  • 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 13:38

General

  • Target

    a84fdb6d6d897c5eaf25da495b6579a8.exe

  • Size

    7.8MB

  • MD5

    a84fdb6d6d897c5eaf25da495b6579a8

  • SHA1

    8ac290a374b358d22607b967ce43585d84d555c9

  • SHA256

    0c3800ca5bdcddd95f7fc29756ef7c8f0016946199a6c2c891673fc267e3b011

  • SHA512

    fd524b75cc222c7974a653c4627ba1af103d80ec153827ca3120442b8530e074b1a46cc44179477a860c40d7b34712d809accf667290552bf777a247ea8a5fda

  • SSDEEP

    196608:NrWazp8eh7FkNqKo0rkOh7FkNqK0tAh7FkNqKo0rkOh7FkNqKcXLj3ceh7FkNqKe:k8px7upo0rd7upyy7upo0rd7upcEY7u4

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\a84fdb6d6d897c5eaf25da495b6579a8.exe
    "C:\Users\Admin\AppData\Local\Temp\a84fdb6d6d897c5eaf25da495b6579a8.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3552
    • C:\Users\Admin\AppData\Local\Temp\a84fdb6d6d897c5eaf25da495b6579a8.exe
      C:\Users\Admin\AppData\Local\Temp\a84fdb6d6d897c5eaf25da495b6579a8.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:5016
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\a84fdb6d6d897c5eaf25da495b6579a8.exe" /TN qPTTkyZ9c33c /F
        3⤵
        • Creates scheduled task(s)
        PID:1636
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN qPTTkyZ9c33c > C:\Users\Admin\AppData\Local\Temp\TLvmBN0bf.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2388
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN qPTTkyZ9c33c
          4⤵
            PID:2296
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 616
          3⤵
          • Program crash
          PID:2736
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 652
          3⤵
          • Program crash
          PID:2920
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 660
          3⤵
          • Program crash
          PID:4448
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 708
          3⤵
          • Program crash
          PID:856
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 756
          3⤵
          • Program crash
          PID:1872
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 768
          3⤵
          • Program crash
          PID:4864
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 1468
          3⤵
          • Program crash
          PID:3180
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 1916
          3⤵
          • Program crash
          PID:4660
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 2144
          3⤵
          • Program crash
          PID:4652
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 1928
          3⤵
          • Program crash
          PID:2832
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 1920
          3⤵
          • Program crash
          PID:3096
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 1988
          3⤵
          • Program crash
          PID:2116
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 1928
          3⤵
          • Program crash
          PID:2044
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 1936
          3⤵
          • Program crash
          PID:1144
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 1924
          3⤵
          • Program crash
          PID:2552
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 1880
          3⤵
          • Program crash
          PID:2260
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 1964
          3⤵
          • Program crash
          PID:2960
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 704
          3⤵
          • Program crash
          PID:3348
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 5016 -ip 5016
      1⤵
        PID:384
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 5016 -ip 5016
        1⤵
          PID:4560
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 5016 -ip 5016
          1⤵
            PID:1456
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 5016 -ip 5016
            1⤵
              PID:2228
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 5016 -ip 5016
              1⤵
                PID:4420
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 5016 -ip 5016
                1⤵
                  PID:3684
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 5016 -ip 5016
                  1⤵
                    PID:4548
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 5016 -ip 5016
                    1⤵
                      PID:2752
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 5016 -ip 5016
                      1⤵
                        PID:1160
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 5016 -ip 5016
                        1⤵
                          PID:3928
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 5016 -ip 5016
                          1⤵
                            PID:1732
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 5016 -ip 5016
                            1⤵
                              PID:3832
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 5016 -ip 5016
                              1⤵
                                PID:4180
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 5016 -ip 5016
                                1⤵
                                  PID:1192
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 620 -p 5016 -ip 5016
                                  1⤵
                                    PID:4236
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 5016 -ip 5016
                                    1⤵
                                      PID:1064
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 608 -p 5016 -ip 5016
                                      1⤵
                                        PID:4032
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 388 -p 5016 -ip 5016
                                        1⤵
                                          PID:4124

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\TLvmBN0bf.xml

                                          Filesize

                                          1KB

                                          MD5

                                          df686cbf4557355a88d7ee791711b874

                                          SHA1

                                          ac7b0f4c137e05b266cf78f6b3370fb3d5ec4362

                                          SHA256

                                          31895e882f1a434c838b5b861a28da42c1149700a704a140252a0fbd7f2aa9ce

                                          SHA512

                                          351dd5222b26c3e2358a262b6c944ac05ec6765c8773c842a621f0a7f44e54bd63baa62315cdf40b702732ed3bf9b1c568150e5658aac1662970e842473b641e

                                        • C:\Users\Admin\AppData\Local\Temp\a84fdb6d6d897c5eaf25da495b6579a8.exe

                                          Filesize

                                          7.8MB

                                          MD5

                                          e366dd8d561bb8bb018cd9247b5c927f

                                          SHA1

                                          5ad79d4041c6f4f38f085b9be5bb7c4f101f2911

                                          SHA256

                                          460c37d3fe6b3b9fb9625c2d0f614a65408cd67939f88dc90919646c68658386

                                          SHA512

                                          8104f2027e9dfb9ed75a9dc0fcc8785554886386e9a43b293c2471740ac4a576cbee31902e43ce1852eecb184828cb124efb8b861dcbace3508c9ae428ac87e1

                                        • memory/3552-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/3552-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/3552-4-0x0000000001730000-0x00000000017AE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/3552-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/5016-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/5016-21-0x0000000001720000-0x000000000179E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/5016-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/5016-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/5016-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB