Analysis

  • max time kernel
    139s
  • max time network
    149s
  • 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, 14:33

General

  • Target

    c61db8d4629c37e91a53012b8a862e1b.exe

  • Size

    6.0MB

  • MD5

    c61db8d4629c37e91a53012b8a862e1b

  • SHA1

    4c96bd8ac242bcca8cb0d638186ead80b95b61ed

  • SHA256

    cc943fc41c3dce5851a7805b44bf7fc251ca0b8733cbbce58857e1bc4f23cbed

  • SHA512

    e005c82ddb1e8fbe878e46be3ebb538d73ec073c86531d045a9a0c06a7a65fdd5976cc80eaa37be6ed74bba2d573dc3ae36c71de494bf75b4df4e25e69d83660

  • SSDEEP

    98304:HFCAB4cakhXKihPmcak0l2Tq+JIrlcakhXKihPmcaka1OHMhU5MWLRyXutcakhXL:HFCAB4dQOd9gf2dQOdpm9ly2dQOd9gfv

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 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\c61db8d4629c37e91a53012b8a862e1b.exe
    "C:\Users\Admin\AppData\Local\Temp\c61db8d4629c37e91a53012b8a862e1b.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4560
    • C:\Users\Admin\AppData\Local\Temp\c61db8d4629c37e91a53012b8a862e1b.exe
      C:\Users\Admin\AppData\Local\Temp\c61db8d4629c37e91a53012b8a862e1b.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3584
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 616
        3⤵
        • Program crash
        PID:4296
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN mCaqQXkK46ae > C:\Users\Admin\AppData\Local\Temp\a4tW5X6g2.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1972
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\c61db8d4629c37e91a53012b8a862e1b.exe" /TN mCaqQXkK46ae /F
        3⤵
        • Creates scheduled task(s)
        PID:4936
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 572
        3⤵
        • Program crash
        PID:2784
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 656
        3⤵
        • Program crash
        PID:656
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 652
        3⤵
        • Program crash
        PID:2640
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 652
        3⤵
        • Program crash
        PID:4272
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 780
        3⤵
        • Program crash
        PID:1312
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 1456
        3⤵
        • Program crash
        PID:4892
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 1908
        3⤵
        • Program crash
        PID:2904
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 2144
        3⤵
        • Program crash
        PID:2116
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 2096
        3⤵
        • Program crash
        PID:4392
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 1936
        3⤵
        • Program crash
        PID:760
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 1968
        3⤵
        • Program crash
        PID:4232
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 1940
        3⤵
        • Program crash
        PID:2624
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 1980
        3⤵
        • Program crash
        PID:4988
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 1936
        3⤵
        • Program crash
        PID:4936
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 1964
        3⤵
        • Program crash
        PID:3192
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 2152
        3⤵
        • Program crash
        PID:4592
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 616
        3⤵
        • Program crash
        PID:1564
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3584 -ip 3584
    1⤵
      PID:2244
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks.exe /Query /XML /TN mCaqQXkK46ae
      1⤵
        PID:976
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3584 -ip 3584
        1⤵
          PID:4744
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3584 -ip 3584
          1⤵
            PID:3044
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3584 -ip 3584
            1⤵
              PID:4420
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 3584 -ip 3584
              1⤵
                PID:5088
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 3584 -ip 3584
                1⤵
                  PID:2176
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 3584 -ip 3584
                  1⤵
                    PID:392
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 3584 -ip 3584
                    1⤵
                      PID:1980
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 3584 -ip 3584
                      1⤵
                        PID:2760
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3584 -ip 3584
                        1⤵
                          PID:4524
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 3584 -ip 3584
                          1⤵
                            PID:1640
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3584 -ip 3584
                            1⤵
                              PID:3460
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 3584 -ip 3584
                              1⤵
                                PID:4028
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 612 -p 3584 -ip 3584
                                1⤵
                                  PID:5044
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 604 -p 3584 -ip 3584
                                  1⤵
                                    PID:2036
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 3584 -ip 3584
                                    1⤵
                                      PID:3372
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3584 -ip 3584
                                      1⤵
                                        PID:4236
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 632 -p 3584 -ip 3584
                                        1⤵
                                          PID:1972

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

                                        Loading Replay Monitor...

                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\a4tW5X6g2.xml

                                          Filesize

                                          1KB

                                          MD5

                                          354c21ddd87b17f322ff40a71a2bc1ec

                                          SHA1

                                          22f257756953f410bc4faa8b25928e0e556c7bea

                                          SHA256

                                          1ce30a7b2093f4d71ed65c93f6e142484afe4e5d19021cf2376693af10fff0a0

                                          SHA512

                                          81c3ce5d1b8cad5e87134d19298f90e9b56ed330dbfeef2326e46ceca7d0bdc37a60259f7cc9ceb7818c755bb8345ed6d0220a1492a38369851b6d913665fb0a

                                        • C:\Users\Admin\AppData\Local\Temp\c61db8d4629c37e91a53012b8a862e1b.exe

                                          Filesize

                                          3.9MB

                                          MD5

                                          2612901319afc8c74cdd6922d218638a

                                          SHA1

                                          1ad19ddd20647ccae3330659e979bd347fab3624

                                          SHA256

                                          48f5040a30a1bdf11ab977da52de08e16aeaa0a132a8f93aeacdc486550d1d77

                                          SHA512

                                          87962ed72baeafc6b2f161e0df5a94acc4811c7657325e6982207be07c08a079f889cf1aa9287f8d69a9aefa5cb878fdcb4c5a8dacf5bdcb07f467f2f655ab42

                                        • memory/3584-15-0x0000000025010000-0x000000002508E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/3584-17-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/3584-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/3584-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/3584-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4560-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4560-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4560-4-0x0000000001730000-0x00000000017AE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4560-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB