Analysis

  • max time kernel
    158s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/01/2024, 10:11

General

  • Target

    58a8fbd59dc9eed54afce4dbf55788b7.exe

  • Size

    3.0MB

  • MD5

    58a8fbd59dc9eed54afce4dbf55788b7

  • SHA1

    80f841fbaf91b0a309c973dffdef8412b8353576

  • SHA256

    fde593177635a6abc73ad75f74f8de2b2860ae1dd77b2dfe4490f7cce691578e

  • SHA512

    2483d4da6407b708092b047d1ec7c54d69cec6bc5975f178a87af3189ddac98ade234ab0a26b36bbae3df81252a0bad51ceb7ec037cec1b69822a3bcca701233

  • SSDEEP

    49152:SeG1NO/1EmRmMqbcakLWqhC2TH5t8NlqMcakLOx3OfVvdhrXcidQ52KmgcakLWqz:VG1NO/1EymMqbcakKaC2TZt8NlPcakYe

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\58a8fbd59dc9eed54afce4dbf55788b7.exe
    "C:\Users\Admin\AppData\Local\Temp\58a8fbd59dc9eed54afce4dbf55788b7.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4868
    • C:\Users\Admin\AppData\Local\Temp\58a8fbd59dc9eed54afce4dbf55788b7.exe
      C:\Users\Admin\AppData\Local\Temp\58a8fbd59dc9eed54afce4dbf55788b7.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3276
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\58a8fbd59dc9eed54afce4dbf55788b7.exe" /TN BLiB1zkTf55f /F
        3⤵
        • Creates scheduled task(s)
        PID:4476
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN BLiB1zkTf55f > C:\Users\Admin\AppData\Local\Temp\WudqSE.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:464
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN BLiB1zkTf55f
          4⤵
            PID:2304
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 616
          3⤵
          • Program crash
          PID:564
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 636
          3⤵
          • Program crash
          PID:5044
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 644
          3⤵
          • Program crash
          PID:3500
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 736
          3⤵
          • Program crash
          PID:2328
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 736
          3⤵
          • Program crash
          PID:2288
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 756
          3⤵
          • Program crash
          PID:3828
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 1468
          3⤵
          • Program crash
          PID:3692
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 1912
          3⤵
          • Program crash
          PID:2588
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 2148
          3⤵
          • Program crash
          PID:4800
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 1928
          3⤵
          • Program crash
          PID:4884
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 1972
          3⤵
          • Program crash
          PID:4496
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 1956
          3⤵
          • Program crash
          PID:4028
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 2160
          3⤵
          • Program crash
          PID:4600
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 2196
          3⤵
          • Program crash
          PID:3664
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 2160
          3⤵
          • Program crash
          PID:812
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 2116
          3⤵
          • Program crash
          PID:4564
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 1968
          3⤵
          • Program crash
          PID:3692
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 632
          3⤵
          • Program crash
          PID:4208
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3276 -ip 3276
      1⤵
        PID:5108
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3276 -ip 3276
        1⤵
          PID:4464
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3276 -ip 3276
          1⤵
            PID:744
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3276 -ip 3276
            1⤵
              PID:3580
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3276 -ip 3276
              1⤵
                PID:3296
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3276 -ip 3276
                1⤵
                  PID:4256
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3276 -ip 3276
                  1⤵
                    PID:1276
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 3276 -ip 3276
                    1⤵
                      PID:3880
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3276 -ip 3276
                      1⤵
                        PID:876
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3276 -ip 3276
                        1⤵
                          PID:4372
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 3276 -ip 3276
                          1⤵
                            PID:2272
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 612 -p 3276 -ip 3276
                            1⤵
                              PID:2196
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 616 -p 3276 -ip 3276
                              1⤵
                                PID:3992
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 612 -p 3276 -ip 3276
                                1⤵
                                  PID:848
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 620 -p 3276 -ip 3276
                                  1⤵
                                    PID:3836
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 644 -p 3276 -ip 3276
                                    1⤵
                                      PID:1316
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 644 -p 3276 -ip 3276
                                      1⤵
                                        PID:3168
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 644 -p 3276 -ip 3276
                                        1⤵
                                          PID:4832

                                        Network

                                              MITRE ATT&CK Enterprise v15

                                              Replay Monitor

                                              Loading Replay Monitor...

                                              Downloads

                                              • C:\Users\Admin\AppData\Local\Temp\58a8fbd59dc9eed54afce4dbf55788b7.exe

                                                Filesize

                                                3.0MB

                                                MD5

                                                8bfd6aab0538d4c9b03c5833a12ffe76

                                                SHA1

                                                6d7d12689a4c67f294804927ce65bdc8d4b6829d

                                                SHA256

                                                ec184570d3431221c85c6133197c3a874fccae3b8f0d7e8af3af89783731f048

                                                SHA512

                                                d19f189f687779fb0ea363985c8facefc3c224dc4d5906bb334dc2f8dcbafb8ed21d0bd7a51a233a3d66686c0daa5f9a58014375b4398fbbd644b17201ac7e56

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

                                                Filesize

                                                1KB

                                                MD5

                                                b52dcb2e7503d310ba23aea80236608b

                                                SHA1

                                                15457e4be814f120f60356200767dfccee2ed901

                                                SHA256

                                                0cdaa8baebced291fb7cbcacfeb0f1e07b64dbee2efe7f77056a4cf9a9a4b45f

                                                SHA512

                                                d25cad46a80f8731f425098e1d780aa6490e171b072aa4f6bca7f5956b453f89afd65228076837b726290c2d6750746aa3c42c9567ee9008030412ca4755697c

                                              • memory/3276-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB

                                              • memory/3276-16-0x0000000025000000-0x000000002507E000-memory.dmp

                                                Filesize

                                                504KB

                                              • memory/3276-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                                Filesize

                                                428KB

                                              • memory/3276-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                                Filesize

                                                364KB

                                              • memory/3276-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB

                                              • memory/4868-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB

                                              • memory/4868-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                                Filesize

                                                428KB

                                              • memory/4868-3-0x0000000001760000-0x00000000017DE000-memory.dmp

                                                Filesize

                                                504KB

                                              • memory/4868-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                                Filesize

                                                428KB