Analysis

  • max time kernel
    124s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/02/2024, 02:15

General

  • Target

    8b2176092d16ec194b1c7f45880708d6.exe

  • Size

    2.0MB

  • MD5

    8b2176092d16ec194b1c7f45880708d6

  • SHA1

    ddc5e1193a28cef3bd74572bd78777194fd17932

  • SHA256

    e483447401b87a0ae990672c517a4e7303979a4fe3a5f15d2d4f9dcfbdcff3cc

  • SHA512

    8b41ad4d0d5162fee7a6518fbdc522bb1227fb78480194cf760ad3dafd2ce8ea7e49fdb3d5745861499d15d1a1d485e2744179d1ff3b234e97dabe470a13edcb

  • SSDEEP

    49152:GVOs7ps3mjIvjcakLz0ibq6yqhJe8swpsqMs/iVdXcakLz0ibq6yqh:GVOsds3gmcakcibiqhJe8swFMUiVdXcH

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\8b2176092d16ec194b1c7f45880708d6.exe
    "C:\Users\Admin\AppData\Local\Temp\8b2176092d16ec194b1c7f45880708d6.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1028
    • C:\Users\Admin\AppData\Local\Temp\8b2176092d16ec194b1c7f45880708d6.exe
      C:\Users\Admin\AppData\Local\Temp\8b2176092d16ec194b1c7f45880708d6.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1396
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\8b2176092d16ec194b1c7f45880708d6.exe" /TN 0Su7L8S745c1 /F
        3⤵
        • Creates scheduled task(s)
        PID:2828
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 0Su7L8S745c1 > C:\Users\Admin\AppData\Local\Temp\vIwLL80nz.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4604
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN 0Su7L8S745c1
          4⤵
            PID:3316
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 608
          3⤵
          • Program crash
          PID:956
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 632
          3⤵
          • Program crash
          PID:2288
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 640
          3⤵
          • Program crash
          PID:1408
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 636
          3⤵
          • Program crash
          PID:5072
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 724
          3⤵
          • Program crash
          PID:3084
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 800
          3⤵
          • Program crash
          PID:3388
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 1464
          3⤵
          • Program crash
          PID:3972
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 1884
          3⤵
          • Program crash
          PID:764
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 2144
          3⤵
          • Program crash
          PID:1928
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 1932
          3⤵
          • Program crash
          PID:2888
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 1940
          3⤵
          • Program crash
          PID:3560
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 2108
          3⤵
          • Program crash
          PID:3656
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 1948
          3⤵
          • Program crash
          PID:32
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 2136
          3⤵
          • Program crash
          PID:3960
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 1944
          3⤵
          • Program crash
          PID:4372
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 2144
          3⤵
          • Program crash
          PID:2236
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 2000
          3⤵
          • Program crash
          PID:3636
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 628
          3⤵
          • Program crash
          PID:3932
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1396 -ip 1396
      1⤵
        PID:5116
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1396 -ip 1396
        1⤵
          PID:3412
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1396 -ip 1396
          1⤵
            PID:3180
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 1396 -ip 1396
            1⤵
              PID:460
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1396 -ip 1396
              1⤵
                PID:1972
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1396 -ip 1396
                1⤵
                  PID:5040
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 1396 -ip 1396
                  1⤵
                    PID:4904
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 1396 -ip 1396
                    1⤵
                      PID:3632
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 1396 -ip 1396
                      1⤵
                        PID:3660
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 1396 -ip 1396
                        1⤵
                          PID:4872
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 1396 -ip 1396
                          1⤵
                            PID:2416
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 1396 -ip 1396
                            1⤵
                              PID:3188
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 596 -p 1396 -ip 1396
                              1⤵
                                PID:1728
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 1396 -ip 1396
                                1⤵
                                  PID:2336
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1396 -ip 1396
                                  1⤵
                                    PID:4384
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 596 -p 1396 -ip 1396
                                    1⤵
                                      PID:1520
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 620 -p 1396 -ip 1396
                                      1⤵
                                        PID:2684
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 1396 -ip 1396
                                        1⤵
                                          PID:2968

                                        Network

                                              MITRE ATT&CK Enterprise v15

                                              Replay Monitor

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                                              Downloads

                                              • C:\Users\Admin\AppData\Local\Temp\8b2176092d16ec194b1c7f45880708d6.exe

                                                Filesize

                                                1.1MB

                                                MD5

                                                99d80884c52d29039ce04e33a508bae7

                                                SHA1

                                                2e52f1c91a479948f799d05a2d69e66c21238d74

                                                SHA256

                                                c05bcf5576d4e7413399b7140876490f2f5185ed09963d54aef86c2bbf97cec2

                                                SHA512

                                                e9c4efd6f34c5eacd8b905c9e710c82c64f7323aea13abcd88f1fdc8d3efa9c108da22c57bda1adfee966d08a2f4c23a65febe08e5a989799c72da76a3931fa8

                                              • C:\Users\Admin\AppData\Local\Temp\vIwLL80nz.xml

                                                Filesize

                                                1KB

                                                MD5

                                                d33ebfb05bd0ef3b0ced9d8d816319a3

                                                SHA1

                                                72f06ed2e36fa8ac7817ea4e4db0bf5c4cf962fe

                                                SHA256

                                                184aa388ee63c9eabd49a69303cc6478baad693ae293dc15aa01f1d30ce36777

                                                SHA512

                                                4777a2e281e5a60599efd9933c0fc24d9793550a8deed325270c1164d2464f8c78e7c1625c3fa7a871d8b0dde94c1ac6a840b622184729b6ecdd9ea06c863ecb

                                              • memory/1028-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB

                                              • memory/1028-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                                Filesize

                                                428KB

                                              • memory/1028-3-0x0000000001720000-0x000000000179E000-memory.dmp

                                                Filesize

                                                504KB

                                              • memory/1028-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                                Filesize

                                                428KB

                                              • memory/1396-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB

                                              • memory/1396-16-0x0000000024FE0000-0x000000002505E000-memory.dmp

                                                Filesize

                                                504KB

                                              • memory/1396-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                                Filesize

                                                428KB

                                              • memory/1396-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                                Filesize

                                                364KB

                                              • memory/1396-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB