Analysis

  • max time kernel
    145s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/12/2023, 04:01

General

  • Target

    528d15ac2918497cac10bd5210726d5d.exe

  • Size

    1003KB

  • MD5

    528d15ac2918497cac10bd5210726d5d

  • SHA1

    20897db1e7d8ca3b8c7ef2d0604c9a2fd0357bff

  • SHA256

    6bbaa1de4d6627d2a5ed6e28abe5cd2ac8bf4f202a3bcc5141460bf5458372df

  • SHA512

    e63fca4fd05d616c0ee49e3eaf7ada6f76948ec85dd2b53ac96746052ce81e1ccd1b0bdba2584c920b83b5e302310770438767d6ea71bd51f888c7999254cb7d

  • SSDEEP

    24576:dcymvs86U3p1E0Wq4NtAVpoHxpGQoadai7D3uITjIFOxo53ApIj:dpnU3jE/q4NKVpoRpGQ7ai7D3xTgOxYj

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\528d15ac2918497cac10bd5210726d5d.exe
    "C:\Users\Admin\AppData\Local\Temp\528d15ac2918497cac10bd5210726d5d.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3440
    • C:\Users\Admin\AppData\Local\Temp\528d15ac2918497cac10bd5210726d5d.exe
      C:\Users\Admin\AppData\Local\Temp\528d15ac2918497cac10bd5210726d5d.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1432
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\528d15ac2918497cac10bd5210726d5d.exe" /TN BLiB1zkTf55f /F
        3⤵
        • Creates scheduled task(s)
        PID:5036
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN BLiB1zkTf55f > C:\Users\Admin\AppData\Local\Temp\Vv8sh3Z.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3560
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN BLiB1zkTf55f
          4⤵
            PID:1148
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 568
          3⤵
          • Program crash
          PID:4880
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 632
          3⤵
          • Program crash
          PID:2644
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 736
          3⤵
          • Program crash
          PID:5012
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 744
          3⤵
          • Program crash
          PID:456
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 744
          3⤵
          • Program crash
          PID:3292
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 816
          3⤵
          • Program crash
          PID:3280
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 1500
          3⤵
          • Program crash
          PID:1004
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 1908
          3⤵
          • Program crash
          PID:4236
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 2144
          3⤵
          • Program crash
          PID:4360
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 1924
          3⤵
          • Program crash
          PID:4848
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 2096
          3⤵
          • Program crash
          PID:1408
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 1956
          3⤵
          • Program crash
          PID:1936
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 1940
          3⤵
          • Program crash
          PID:2436
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 1916
          3⤵
          • Program crash
          PID:4880
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 1952
          3⤵
          • Program crash
          PID:668
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 2112
          3⤵
          • Program crash
          PID:1752
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 1904
          3⤵
          • Program crash
          PID:8
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 628
          3⤵
          • Program crash
          PID:1600
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1432 -ip 1432
      1⤵
        PID:320
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1432 -ip 1432
        1⤵
          PID:4016
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1432 -ip 1432
          1⤵
            PID:1356
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1432 -ip 1432
            1⤵
              PID:4204
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1432 -ip 1432
              1⤵
                PID:824
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1432 -ip 1432
                1⤵
                  PID:2508
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1432 -ip 1432
                  1⤵
                    PID:4492
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 1432 -ip 1432
                    1⤵
                      PID:4692
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 1432 -ip 1432
                      1⤵
                        PID:4116
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1432 -ip 1432
                        1⤵
                          PID:3244
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1432 -ip 1432
                          1⤵
                            PID:2264
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1432 -ip 1432
                            1⤵
                              PID:2100
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 1432 -ip 1432
                              1⤵
                                PID:1232
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 1432 -ip 1432
                                1⤵
                                  PID:4364
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 1432 -ip 1432
                                  1⤵
                                    PID:2384
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 1432 -ip 1432
                                    1⤵
                                      PID:4240
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 1432 -ip 1432
                                      1⤵
                                        PID:1160
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 1432 -ip 1432
                                        1⤵
                                          PID:4580

                                        Network

                                              MITRE ATT&CK Enterprise v15

                                              Replay Monitor

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                                              Downloads

                                              • C:\Users\Admin\AppData\Local\Temp\528d15ac2918497cac10bd5210726d5d.exe

                                                Filesize

                                                405KB

                                                MD5

                                                ebc91434fe5abe65e05e4018bf64e90b

                                                SHA1

                                                15f3834604802926c84ae7dff732d322a1cfb596

                                                SHA256

                                                9710c8821beb1a8c609e8bb91e333d524a74e9ce45f00f7c58342051c66f0d55

                                                SHA512

                                                d363775ac850369edd69b7b0e447f617fef6a349ac6be4886ac1e376011751b1a472775fa8080994171ae1e43953ad4902bb86e91c3f0bb17d2f00a5b75b626b

                                              • C:\Users\Admin\AppData\Local\Temp\Vv8sh3Z.xml

                                                Filesize

                                                1KB

                                                MD5

                                                ae42a1a6c63f56584e672f5cb06be112

                                                SHA1

                                                4c72c004efe2d4120ad39a805bccffacd50018e2

                                                SHA256

                                                63235b10ccb850f45ca62f809f69a985ae4131918f97e1ea4ddc33bdf54ec323

                                                SHA512

                                                a76ff46b2783548b6f2fe64eee740811d895a2eb2e19c9df56b7f1d863b9ac40dbea468a80ad04e3ef22b7204ddfe5d17c50fc5f9c4c684a440e04485a5f0ba9

                                              • memory/1432-15-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB

                                              • memory/1432-17-0x0000000024010000-0x000000002408E000-memory.dmp

                                                Filesize

                                                504KB

                                              • memory/1432-22-0x00000000004B0000-0x000000000051B000-memory.dmp

                                                Filesize

                                                428KB

                                              • memory/1432-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                                Filesize

                                                364KB

                                              • memory/1432-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB

                                              • memory/3440-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB

                                              • memory/3440-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                                Filesize

                                                428KB

                                              • memory/3440-4-0x0000000001720000-0x000000000179E000-memory.dmp

                                                Filesize

                                                504KB

                                              • memory/3440-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                                Filesize

                                                428KB