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Analysis

  • max time kernel
    154s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/11/2023, 12:15

General

  • Target

    NEAS.34d3ee4b213867f883b596e4a238a3e0.exe

  • Size

    3.2MB

  • MD5

    34d3ee4b213867f883b596e4a238a3e0

  • SHA1

    4a46b9238cab38277425f26fc5b0825bc478ed2f

  • SHA256

    9b9d8d9ac13835e2072862b3c274fbd16fd8229410dd91c4ce46b69a4097b827

  • SHA512

    b6f300ea7093abe0791630cc3ac1933fc4b2984d974fbb11d468443ea414797ddfc5d6dcd824fc8260ad9061ba9e7f2118503bc97a839813c9aab1bc145e98f9

  • SSDEEP

    98304:NXuEMg9sB58cakcg08tVDucXS0CrcakcPMUmCDd2YOAcakcg08tVDucXS0Crcak7:z9sgdlb0XRqdlPMUDSAdlb0XRqdlO

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\NEAS.34d3ee4b213867f883b596e4a238a3e0.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.34d3ee4b213867f883b596e4a238a3e0.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1288
    • C:\Users\Admin\AppData\Local\Temp\NEAS.34d3ee4b213867f883b596e4a238a3e0.exe
      C:\Users\Admin\AppData\Local\Temp\NEAS.34d3ee4b213867f883b596e4a238a3e0.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3948
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\NEAS.34d3ee4b213867f883b596e4a238a3e0.exe" /TN PFFylRK1cb7b /F
        3⤵
        • Creates scheduled task(s)
        PID:1996
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN PFFylRK1cb7b > C:\Users\Admin\AppData\Local\Temp\QuRrd0oMv.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3140
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN PFFylRK1cb7b
          4⤵
            PID:4220
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 616
          3⤵
          • Program crash
          PID:1064
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 648
          3⤵
          • Program crash
          PID:2668
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 708
          3⤵
          • Program crash
          PID:3092
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 736
          3⤵
          • Program crash
          PID:1792
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 736
          3⤵
          • Program crash
          PID:3504
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 720
          3⤵
          • Program crash
          PID:1300
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 1464
          3⤵
          • Program crash
          PID:1076
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 1924
          3⤵
          • Program crash
          PID:1096
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 2144
          3⤵
          • Program crash
          PID:3044
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 1940
          3⤵
          • Program crash
          PID:1352
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 1928
          3⤵
          • Program crash
          PID:2732
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 1988
          3⤵
          • Program crash
          PID:1388
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 1944
          3⤵
          • Program crash
          PID:5072
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 2200
          3⤵
          • Program crash
          PID:2720
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 2260
          3⤵
          • Program crash
          PID:2800
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 1932
          3⤵
          • Program crash
          PID:3360
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 2180
          3⤵
          • Program crash
          PID:4632
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 728
          3⤵
          • Program crash
          PID:2748
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3948 -ip 3948
      1⤵
        PID:2700
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3948 -ip 3948
        1⤵
          PID:4884
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3948 -ip 3948
          1⤵
            PID:228
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3948 -ip 3948
            1⤵
              PID:3616
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3948 -ip 3948
              1⤵
                PID:4148
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3948 -ip 3948
                1⤵
                  PID:208
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3948 -ip 3948
                  1⤵
                    PID:1296
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3948 -ip 3948
                    1⤵
                      PID:1924
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3948 -ip 3948
                      1⤵
                        PID:4360
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3948 -ip 3948
                        1⤵
                          PID:2724
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3948 -ip 3948
                          1⤵
                            PID:5036
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3948 -ip 3948
                            1⤵
                              PID:860
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3948 -ip 3948
                              1⤵
                                PID:440
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3948 -ip 3948
                                1⤵
                                  PID:2592
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3948 -ip 3948
                                  1⤵
                                    PID:1484
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3948 -ip 3948
                                    1⤵
                                      PID:3316
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 3948 -ip 3948
                                      1⤵
                                        PID:2720
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3948 -ip 3948
                                        1⤵
                                          PID:1220

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\NEAS.34d3ee4b213867f883b596e4a238a3e0.exe

                                          Filesize

                                          3.2MB

                                          MD5

                                          b3ec8cf84e2c89d78e39dd7be34c6332

                                          SHA1

                                          1a1f5b0caa09ed03137978de719385576162d3be

                                          SHA256

                                          a15ee7bb1bf27394b11c86d215d13447d01921b87f50658f4f69e03fdd0cabc9

                                          SHA512

                                          6eb7bcdeebee2120d613fd806f6dcc59e8938821c5737edba3537ed86b51271fcd2832637c2481caedd0fa574082709bb6947234bd5bc0d4e5393ebe28b54ac5

                                        • C:\Users\Admin\AppData\Local\Temp\QuRrd0oMv.xml

                                          Filesize

                                          1KB

                                          MD5

                                          74426b4c10bc524c08badb27b1dbc88f

                                          SHA1

                                          0520670c657836c1aa1e12945b192bbc49f885d8

                                          SHA256

                                          e7ecbc26dda8289cc37a4d1aff52cf10ab4e634504e46c8d9faef2cd2604480d

                                          SHA512

                                          69e5b33a0d89d257e1f8387d1609be382930546ed7b766c317c9b0ca513b467a2aa47efab9d94d5075d8ce50b13e409b5f48001590613eaf640921ef59a1a52b

                                        • memory/1288-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/1288-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/1288-2-0x0000000001760000-0x00000000017DE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/1288-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/3948-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/3948-17-0x00000000018C0000-0x000000000193E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/3948-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/3948-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/3948-32-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB