Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/03/2024, 22:30

General

  • Target

    bcf836f47c9b93dcaa2a53dcd6a530f3.exe

  • Size

    2.0MB

  • MD5

    bcf836f47c9b93dcaa2a53dcd6a530f3

  • SHA1

    d942bd66749ccf602c07bc558760df1c57ef7353

  • SHA256

    9371398f04888af7b1dc59ddb6cc3d75c68d78750783adc21aaee1379db65bd8

  • SHA512

    db306f847a410b552e8a241a65543c856848a3b49249466a5f44ab244410f7ccb1b252ed8c0e0b9c37d8cdf487271e034604520d1c9452bc927015508a0c68df

  • SSDEEP

    49152:HomiY5AcakLz0ibq6yqhhubDY0CgOnQvEn0bcakLz0ibq6yqh:HomiYycakcibiqhMbMgOn7n0bcakcibJ

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\bcf836f47c9b93dcaa2a53dcd6a530f3.exe
    "C:\Users\Admin\AppData\Local\Temp\bcf836f47c9b93dcaa2a53dcd6a530f3.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1500
    • C:\Users\Admin\AppData\Local\Temp\bcf836f47c9b93dcaa2a53dcd6a530f3.exe
      C:\Users\Admin\AppData\Local\Temp\bcf836f47c9b93dcaa2a53dcd6a530f3.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:5092
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\bcf836f47c9b93dcaa2a53dcd6a530f3.exe" /TN obYzNKzF95b4 /F
        3⤵
        • Creates scheduled task(s)
        PID:3340
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN obYzNKzF95b4 > C:\Users\Admin\AppData\Local\Temp\JqgnrY61.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1964
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN obYzNKzF95b4
          4⤵
            PID:2188
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 616
          3⤵
          • Program crash
          PID:1360
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 644
          3⤵
          • Program crash
          PID:2252
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 628
          3⤵
          • Program crash
          PID:3628
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 756
          3⤵
          • Program crash
          PID:1280
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 792
          3⤵
          • Program crash
          PID:1200
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 756
          3⤵
          • Program crash
          PID:3404
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 1464
          3⤵
          • Program crash
          PID:3672
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 1916
          3⤵
          • Program crash
          PID:1564
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 2144
          3⤵
          • Program crash
          PID:2660
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 1956
          3⤵
          • Program crash
          PID:4896
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 1936
          3⤵
          • Program crash
          PID:3744
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 2008
          3⤵
          • Program crash
          PID:2880
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 1916
          3⤵
          • Program crash
          PID:2908
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 1968
          3⤵
          • Program crash
          PID:1232
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 1964
          3⤵
          • Program crash
          PID:2364
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 2200
          3⤵
          • Program crash
          PID:1920
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 2208
          3⤵
          • Program crash
          PID:1868
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 640
          3⤵
          • Program crash
          PID:3120
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 5092 -ip 5092
      1⤵
        PID:3200
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5092 -ip 5092
        1⤵
          PID:3668
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 5092 -ip 5092
          1⤵
            PID:2180
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 5092 -ip 5092
            1⤵
              PID:4764
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 5092 -ip 5092
              1⤵
                PID:3316
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 5092 -ip 5092
                1⤵
                  PID:2864
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 5092 -ip 5092
                  1⤵
                    PID:1212
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 5092 -ip 5092
                    1⤵
                      PID:2420
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 5092 -ip 5092
                      1⤵
                        PID:4636
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 5092 -ip 5092
                        1⤵
                          PID:1276
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 5092 -ip 5092
                          1⤵
                            PID:2832
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 5092 -ip 5092
                            1⤵
                              PID:5044
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 5092 -ip 5092
                              1⤵
                                PID:4920
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 5092 -ip 5092
                                1⤵
                                  PID:4492
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 5092 -ip 5092
                                  1⤵
                                    PID:4208
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 5092 -ip 5092
                                    1⤵
                                      PID:592
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 5092 -ip 5092
                                      1⤵
                                        PID:2432
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 5092 -ip 5092
                                        1⤵
                                          PID:3288

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

                                        Loading Replay Monitor...

                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\JqgnrY61.xml

                                          Filesize

                                          1KB

                                          MD5

                                          6cc243557fc47a300e9714d48c07e154

                                          SHA1

                                          0b42c92f96de3551ec3207f37299d8888479327c

                                          SHA256

                                          c23818b53c59ff9f922cc28505a44f9d8dbc61b70bc9ba085d07dcac561ed65b

                                          SHA512

                                          461a13b6df468011a1297583fb6521359442a76ba319c8d727f69b4ba851b9982a8abdfa0458a0f3ec529fbb0b2a9a8234f5c087799aff25277b22cad7eca15d

                                        • C:\Users\Admin\AppData\Local\Temp\bcf836f47c9b93dcaa2a53dcd6a530f3.exe

                                          Filesize

                                          632KB

                                          MD5

                                          535e67f1553d79294b1069d6da261106

                                          SHA1

                                          72b257b01c7ff5ee23de5eddb38ab5d7603c0b25

                                          SHA256

                                          bffd1daf81e337cc582190e0410af88804cc7a6289ff63ae5bce9bcc361f2ef5

                                          SHA512

                                          362a04c2180aac7236fc70d8ac10b9a93dd6174083f4a71dea5122e2e7d0b3d6b354b74e2e43196308c53ed306ffd448e03e1d8cc2d6233436c0c3685dc4271a

                                        • memory/1500-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/1500-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/1500-3-0x0000000024FE0000-0x000000002505E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/1500-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/5092-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/5092-18-0x0000000001720000-0x000000000179E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/5092-22-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/5092-23-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/5092-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB