Analysis

  • max time kernel
    144s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/03/2024, 04:26

General

  • Target

    c4f797076a67218765f3cf1536652190.exe

  • Size

    1003KB

  • MD5

    c4f797076a67218765f3cf1536652190

  • SHA1

    a99c3521a4dc9a77973a7afa072dda7db3456cc6

  • SHA256

    2a9a316153fbe29cacb15a22b886ed74d3bf1cf3caf3e31619e0a10d03b8d402

  • SHA512

    3b9e60f8bbf6037a27aadaef989e79129b2b2b5a89736b298e1a0b613a4e006dad762a671e33dfab7e50289ee4db101a0162fdf73e19f7ee492662dbc75d3c7e

  • SSDEEP

    24576:QlAI51iRHcQTIgA3cjukL2CDYibq6/yqLNaF:QlAI51EHjIgwcakLz0ibq6yqh

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 1 IoCs
  • 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\c4f797076a67218765f3cf1536652190.exe
    "C:\Users\Admin\AppData\Local\Temp\c4f797076a67218765f3cf1536652190.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4308
    • C:\Users\Admin\AppData\Local\Temp\c4f797076a67218765f3cf1536652190.exe
      C:\Users\Admin\AppData\Local\Temp\c4f797076a67218765f3cf1536652190.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1752
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\c4f797076a67218765f3cf1536652190.exe" /TN v3dGbWFyc353 /F
        3⤵
        • Creates scheduled task(s)
        PID:3104
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN v3dGbWFyc353 > C:\Users\Admin\AppData\Local\Temp\SM4VX.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3696
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN v3dGbWFyc353
          4⤵
            PID:4972
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 604
          3⤵
          • Program crash
          PID:3424
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 628
          3⤵
          • Program crash
          PID:4356
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 636
          3⤵
          • Program crash
          PID:4684
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 632
          3⤵
          • Program crash
          PID:2660
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 632
          3⤵
          • Program crash
          PID:3316
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 764
          3⤵
          • Program crash
          PID:4464
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 1472
          3⤵
          • Program crash
          PID:3308
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 1864
          3⤵
          • Program crash
          PID:468
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 2144
          3⤵
          • Program crash
          PID:532
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 1876
          3⤵
          • Program crash
          PID:1252
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 1868
          3⤵
          • Program crash
          PID:2552
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 2220
          3⤵
          • Program crash
          PID:2232
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 2104
          3⤵
          • Program crash
          PID:2984
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 1872
          3⤵
          • Program crash
          PID:2568
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 2172
          3⤵
          • Program crash
          PID:5016
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 2104
          3⤵
          • Program crash
          PID:2484
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 1864
          3⤵
          • Program crash
          PID:1192
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 624
          3⤵
          • Program crash
          PID:4564
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1752 -ip 1752
      1⤵
        PID:4744
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1752 -ip 1752
        1⤵
          PID:1956
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1752 -ip 1752
          1⤵
            PID:3132
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1752 -ip 1752
            1⤵
              PID:2724
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1752 -ip 1752
              1⤵
                PID:3996
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1752 -ip 1752
                1⤵
                  PID:1912
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1752 -ip 1752
                  1⤵
                    PID:4560
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1752 -ip 1752
                    1⤵
                      PID:3020
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1752 -ip 1752
                      1⤵
                        PID:1624
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 1752 -ip 1752
                        1⤵
                          PID:536
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1752 -ip 1752
                          1⤵
                            PID:4264
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1752 -ip 1752
                            1⤵
                              PID:864
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1752 -ip 1752
                              1⤵
                                PID:420
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1752 -ip 1752
                                1⤵
                                  PID:2280
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 1752 -ip 1752
                                  1⤵
                                    PID:1168
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 1752 -ip 1752
                                    1⤵
                                      PID:2304
                                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4456 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
                                      1⤵
                                        PID:1832
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 612 -p 1752 -ip 1752
                                        1⤵
                                          PID:1076
                                        • C:\Windows\SysWOW64\WerFault.exe
                                          C:\Windows\SysWOW64\WerFault.exe -pss -s 608 -p 1752 -ip 1752
                                          1⤵
                                            PID:2912

                                          Network

                                          MITRE ATT&CK Enterprise v15

                                          Replay Monitor

                                          Loading Replay Monitor...

                                          Downloads

                                          • C:\Users\Admin\AppData\Local\Temp\SM4VX.xml

                                            Filesize

                                            1KB

                                            MD5

                                            d04985aff782f894b04ec19a53a15b1b

                                            SHA1

                                            45234847567d2ac3f869879f6adbcdfcab163180

                                            SHA256

                                            cd45fe9b9c11bf10b5e382214b4ae2f6c71a8e4b423a0f9f6c740ff89c849b22

                                            SHA512

                                            716949c63b60eacd4696800b4976326d3f93508125c1caaae7f23ae9b5b281fa4e23a7356a2a53d138fa6ec5393b58ebf76e97ef4a0e21c9b5eb3202c15dc1e2

                                          • C:\Users\Admin\AppData\Local\Temp\c4f797076a67218765f3cf1536652190.exe

                                            Filesize

                                            1003KB

                                            MD5

                                            bf9b7eb2c6cb3c083976b20ba8450571

                                            SHA1

                                            956b2152e3e88834776fdd0de745069d7ba89e42

                                            SHA256

                                            b5ccd7ab1ead0dfc29f2ee9ea8010bac8db5c905596165fd971c195f1ce39595

                                            SHA512

                                            ef68ff07b5c98a6afe4b6123bdf516373c117fd36c68723777599d7f2d92cfaf2cc891f841b4065e1671eb8a13c3eb49a5c65d4be1c4f1d33074f69f4be0aa8b

                                          • memory/1752-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                            Filesize

                                            2.4MB

                                          • memory/1752-17-0x0000000024FE0000-0x000000002505E000-memory.dmp

                                            Filesize

                                            504KB

                                          • memory/1752-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                            Filesize

                                            428KB

                                          • memory/1752-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                            Filesize

                                            364KB

                                          • memory/1752-37-0x0000000000400000-0x000000000065C000-memory.dmp

                                            Filesize

                                            2.4MB

                                          • memory/4308-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                            Filesize

                                            2.4MB

                                          • memory/4308-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                            Filesize

                                            428KB

                                          • memory/4308-6-0x0000000025000000-0x000000002507E000-memory.dmp

                                            Filesize

                                            504KB

                                          • memory/4308-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                            Filesize

                                            428KB