Analysis

  • max time kernel
    148s
  • max time network
    142s
  • 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, 13:23

General

  • Target

    a0f27b57893df5c30d9960f1018dc041.exe

  • Size

    3.9MB

  • MD5

    a0f27b57893df5c30d9960f1018dc041

  • SHA1

    2a1cb7fd65ca1737850fda2c4d1db35044839cfc

  • SHA256

    59a0c64f92862aba71129d3d4877ccc52f3df8302bfeff3f42c4acc1ca70572f

  • SHA512

    e98bdf03cdaacb48ae15881c4e2a691791292e5324245c03a413a012a8599e9d7076b1dadaee5f4c8b82ae9f6a061c1195c6d9965b21dcb669cc541676bcf342

  • SSDEEP

    98304:EJbisqxxtpA9zyULG+pM0n6x94uffA9zyULG+LUZzwPvnXA9zyULG+pM0n6x94ug:EJ+xtWzLqQHu4uQzLqyuzwXnwzLqQHuR

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\a0f27b57893df5c30d9960f1018dc041.exe
    "C:\Users\Admin\AppData\Local\Temp\a0f27b57893df5c30d9960f1018dc041.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3040
    • C:\Users\Admin\AppData\Local\Temp\a0f27b57893df5c30d9960f1018dc041.exe
      C:\Users\Admin\AppData\Local\Temp\a0f27b57893df5c30d9960f1018dc041.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:116
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\a0f27b57893df5c30d9960f1018dc041.exe" /TN qPTTkyZ9c33c /F
        3⤵
        • Creates scheduled task(s)
        PID:4840
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN qPTTkyZ9c33c > C:\Users\Admin\AppData\Local\Temp\5CA5y.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1204
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN qPTTkyZ9c33c
          4⤵
            PID:2776
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 604
          3⤵
          • Program crash
          PID:4472
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 648
          3⤵
          • Program crash
          PID:3088
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 656
          3⤵
          • Program crash
          PID:2008
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 652
          3⤵
          • Program crash
          PID:1040
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 740
          3⤵
          • Program crash
          PID:1432
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 748
          3⤵
          • Program crash
          PID:3572
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 1468
          3⤵
          • Program crash
          PID:4208
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 1916
          3⤵
          • Program crash
          PID:3760
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 2144
          3⤵
          • Program crash
          PID:2148
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 1956
          3⤵
          • Program crash
          PID:2636
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 2004
          3⤵
          • Program crash
          PID:1104
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 1992
          3⤵
          • Program crash
          PID:4544
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 1876
          3⤵
          • Program crash
          PID:4840
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 1972
          3⤵
          • Program crash
          PID:4004
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 1944
          3⤵
          • Program crash
          PID:1632
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 2144
          3⤵
          • Program crash
          PID:4028
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 1956
          3⤵
          • Program crash
          PID:1412
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 620
          3⤵
          • Program crash
          PID:4108
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 116 -ip 116
      1⤵
        PID:4888
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 116 -ip 116
        1⤵
          PID:5080
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 116 -ip 116
          1⤵
            PID:884
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 116 -ip 116
            1⤵
              PID:3164
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 116 -ip 116
              1⤵
                PID:2140
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 116 -ip 116
                1⤵
                  PID:1980
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 116 -ip 116
                  1⤵
                    PID:4620
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 116 -ip 116
                    1⤵
                      PID:2720
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 116 -ip 116
                      1⤵
                        PID:4780
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 116 -ip 116
                        1⤵
                          PID:2060
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 116 -ip 116
                          1⤵
                            PID:1704
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 116 -ip 116
                            1⤵
                              PID:3864
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 116 -ip 116
                              1⤵
                                PID:4540
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 116 -ip 116
                                1⤵
                                  PID:2252
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 116 -ip 116
                                  1⤵
                                    PID:868
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 116 -ip 116
                                    1⤵
                                      PID:4148
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 116 -ip 116
                                      1⤵
                                        PID:952
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 116 -ip 116
                                        1⤵
                                          PID:4756

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\5CA5y.xml

                                          Filesize

                                          1KB

                                          MD5

                                          66b1fa5cf8e084d0ebd8d7b0be78fac0

                                          SHA1

                                          166148574962889826012661dd2fd9ecf2328656

                                          SHA256

                                          ce597052e22c2ea549a4fc6dbc12c7a66daaedc03267b3383d19d430b5e3159d

                                          SHA512

                                          1b57f7f8872ccd1f11971653ca43f84045efb2a024012ad02be2884285b7ce22d28e10985d719d6e5582e85a1a7549165bd422d6c29508d2c7950aecc9f83e1a

                                        • C:\Users\Admin\AppData\Local\Temp\a0f27b57893df5c30d9960f1018dc041.exe

                                          Filesize

                                          143KB

                                          MD5

                                          b2d861cbd37f5baf635034cddf60edc3

                                          SHA1

                                          5a92ce2a4aaf02f5123e416a0656cf46a61e2b47

                                          SHA256

                                          7949b3504100e44a18d8d5b7ea3656860c15fa1363bf8c6ff7414c69cc4295c8

                                          SHA512

                                          dcae5b8f97ec240865a02ac37f36faf1145c7f2382318bc2eda53f5827ff74b4d73020cad35aa4c65c753c34386dacf7fd4e397a3ac328c7ace30880304bc79c

                                        • memory/116-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/116-17-0x0000000001730000-0x00000000017AE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/116-22-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/116-27-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/116-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/3040-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/3040-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/3040-6-0x0000000001730000-0x00000000017AE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/3040-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB