Analysis

  • max time kernel
    146s
  • max time network
    157s
  • 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, 02:53

General

  • Target

    56e3668a822309f9e5cdaaf5e18d4c9c.exe

  • Size

    6.0MB

  • MD5

    56e3668a822309f9e5cdaaf5e18d4c9c

  • SHA1

    21bf0d1c75a7167be360fcf4c23411be330d950e

  • SHA256

    d169642e23c3803cda44034a73d0c14679eab8b348be9ed90f063aad0d15ddc7

  • SHA512

    4f709887301334fb635c466e8bee26a5b4f2350e3452ba121d97d83347578ec835b5f237f6c79412a16663b843276bbb45ca12eb70d2bc1d0f1a6a4f1531af1b

  • SSDEEP

    98304:VyarrQEcakhy595sgp9cak6fE8TPIcakhy595sgp9caku/nUZnAQokWcakhy595z:hrUEdBXTdm8TPIdBXTdfghokWdBXTdmw

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\56e3668a822309f9e5cdaaf5e18d4c9c.exe
    "C:\Users\Admin\AppData\Local\Temp\56e3668a822309f9e5cdaaf5e18d4c9c.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2964
    • C:\Users\Admin\AppData\Local\Temp\56e3668a822309f9e5cdaaf5e18d4c9c.exe
      C:\Users\Admin\AppData\Local\Temp\56e3668a822309f9e5cdaaf5e18d4c9c.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3084
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\56e3668a822309f9e5cdaaf5e18d4c9c.exe" /TN BLiB1zkTf55f /F
        3⤵
        • Creates scheduled task(s)
        PID:2936
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN BLiB1zkTf55f > C:\Users\Admin\AppData\Local\Temp\NKOWdRCM.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4752
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN BLiB1zkTf55f
          4⤵
            PID:3944
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 576
          3⤵
          • Program crash
          PID:4428
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 632
          3⤵
          • Program crash
          PID:4820
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 640
          3⤵
          • Program crash
          PID:3040
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 732
          3⤵
          • Program crash
          PID:2456
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 760
          3⤵
          • Program crash
          PID:2288
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 800
          3⤵
          • Program crash
          PID:4996
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1480
          3⤵
          • Program crash
          PID:1484
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1916
          3⤵
          • Program crash
          PID:3980
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 2144
          3⤵
          • Program crash
          PID:824
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1928
          3⤵
          • Program crash
          PID:3860
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1920
          3⤵
          • Program crash
          PID:2652
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 2156
          3⤵
          • Program crash
          PID:1596
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 2228
          3⤵
          • Program crash
          PID:4436
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1992
          3⤵
          • Program crash
          PID:4664
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1924
          3⤵
          • Program crash
          PID:1936
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1992
          3⤵
          • Program crash
          PID:2560
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1916
          3⤵
          • Program crash
          PID:3288
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 712
          3⤵
          • Program crash
          PID:1804
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3084 -ip 3084
      1⤵
        PID:3668
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3084 -ip 3084
        1⤵
          PID:4416
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3084 -ip 3084
          1⤵
            PID:3728
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3084 -ip 3084
            1⤵
              PID:5088
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3084 -ip 3084
              1⤵
                PID:1872
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3084 -ip 3084
                1⤵
                  PID:872
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3084 -ip 3084
                  1⤵
                    PID:1880
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 3084 -ip 3084
                    1⤵
                      PID:4420
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3084 -ip 3084
                      1⤵
                        PID:2584
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3084 -ip 3084
                        1⤵
                          PID:3896
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 3084 -ip 3084
                          1⤵
                            PID:2144
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3084 -ip 3084
                            1⤵
                              PID:3880
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3084 -ip 3084
                              1⤵
                                PID:4304
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3084 -ip 3084
                                1⤵
                                  PID:4512
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3084 -ip 3084
                                  1⤵
                                    PID:4680
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 3084 -ip 3084
                                    1⤵
                                      PID:2832
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3084 -ip 3084
                                      1⤵
                                        PID:920
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3084 -ip 3084
                                        1⤵
                                          PID:2824

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\56e3668a822309f9e5cdaaf5e18d4c9c.exe

                                          Filesize

                                          2.3MB

                                          MD5

                                          0843578847c9ca964b5bf47f96605681

                                          SHA1

                                          d75739888baf1db95ab2da23ee8b480b181ca5a6

                                          SHA256

                                          c66af3d979a0d271a7c61133bbcf4cb1b98a201855e77cd067ac5493f1f74be8

                                          SHA512

                                          9149841a5bf784de60ceb64f6faf9607a4e518f1178e3d3c8c04bac8f197c952594b9cc459e643166236aa4976459dc4592e1ca25f4b4906753d176b463e2589

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

                                          Filesize

                                          1KB

                                          MD5

                                          554e056b813fa6da3c95e9b4627e5962

                                          SHA1

                                          358782532957de93645e050a74e39af9b99f760f

                                          SHA256

                                          befcf0bada8e2c7dcad16dd14db90518700f8ddaf5b128a03bd622c4409e4132

                                          SHA512

                                          8c7bb336feb3de522a39858ef12301394f37f1ebb42b41ffacec7c3a4b6a3d37b5adcc4fec4c6da744d45a4333131962da61174f34bada661b803f1a328339db

                                        • memory/2964-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/2964-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/2964-4-0x0000000024FE0000-0x000000002505E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/2964-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/3084-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/3084-17-0x00000000018D0000-0x000000000194E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/3084-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/3084-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/3084-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB