Analysis

  • max time kernel
    150s
  • max time network
    131s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    05-05-2021 12:50

General

  • Target

    notepad.exe

  • Size

    2.8MB

  • MD5

    4930920087503d221d8bb13e1514620b

  • SHA1

    07e2d9be6cce22e6b1b44992acf2d536c3675e07

  • SHA256

    5cf202837c24442de4f09ee9a152c77f911b405541fd30567bcc370ef61f5f75

  • SHA512

    9204d17902fb794600e5efb538f0269340393a84cf3c72ceb27884ab1f5f215a46c42a9f5de457167953d9bcdf7148d9a3b12d22812347af20e5e073a2802f0f

Score
8/10
upx

Malware Config

Signatures

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops startup file 1 IoCs
  • Suspicious use of SetThreadContext 17 IoCs
  • Program crash 16 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\notepad.exe
    "C:\Users\Admin\AppData\Local\Temp\notepad.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4084
    • C:\Users\Admin\AppData\Local\Temp\notepad.exe
      "C:\Users\Admin\AppData\Local\Temp\notepad.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1484
      • C:\Windows\notepad.exe
        "C:\Windows\notepad.exe" -c "C:\ProgramData\LKBNMTFJgl\cfgi"
        3⤵
          PID:4036
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -u -p 4036 -s 180
            4⤵
            • Program crash
            PID:2724
        • C:\Windows\notepad.exe
          "C:\Windows\notepad.exe" -c "C:\ProgramData\LKBNMTFJgl\cfgi"
          3⤵
            PID:2792
            • C:\Windows\system32\WerFault.exe
              C:\Windows\system32\WerFault.exe -u -p 2792 -s 180
              4⤵
              • Program crash
              PID:1136
          • C:\Windows\notepad.exe
            "C:\Windows\notepad.exe" -c "C:\ProgramData\LKBNMTFJgl\cfgi"
            3⤵
              PID:3880
              • C:\Windows\system32\WerFault.exe
                C:\Windows\system32\WerFault.exe -u -p 3880 -s 180
                4⤵
                • Program crash
                PID:4084
            • C:\Windows\SysWOW64\cmd.exe
              cmd.exe /C WScript "C:\ProgramData\LKBNMTFJgl\r.vbs"
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:1576
              • C:\Windows\SysWOW64\wscript.exe
                WScript "C:\ProgramData\LKBNMTFJgl\r.vbs"
                4⤵
                • Drops startup file
                PID:3024
            • C:\Windows\notepad.exe
              "C:\Windows\notepad.exe" -c "C:\ProgramData\LKBNMTFJgl\cfgi"
              3⤵
                PID:2440
                • C:\Windows\system32\WerFault.exe
                  C:\Windows\system32\WerFault.exe -u -p 2440 -s 180
                  4⤵
                  • Program crash
                  PID:1000
              • C:\Windows\notepad.exe
                "C:\Windows\notepad.exe" -c "C:\ProgramData\LKBNMTFJgl\cfgi"
                3⤵
                  PID:4088
                  • C:\Windows\system32\WerFault.exe
                    C:\Windows\system32\WerFault.exe -u -p 4088 -s 180
                    4⤵
                    • Program crash
                    PID:1548
                • C:\Windows\notepad.exe
                  "C:\Windows\notepad.exe" -c "C:\ProgramData\LKBNMTFJgl\cfgi"
                  3⤵
                    PID:1192
                    • C:\Windows\system32\WerFault.exe
                      C:\Windows\system32\WerFault.exe -u -p 1192 -s 180
                      4⤵
                      • Program crash
                      PID:3944
                  • C:\Windows\notepad.exe
                    "C:\Windows\notepad.exe" -c "C:\ProgramData\LKBNMTFJgl\cfgi"
                    3⤵
                      PID:784
                      • C:\Windows\system32\WerFault.exe
                        C:\Windows\system32\WerFault.exe -u -p 784 -s 180
                        4⤵
                        • Program crash
                        PID:2220
                    • C:\Windows\notepad.exe
                      "C:\Windows\notepad.exe" -c "C:\ProgramData\LKBNMTFJgl\cfgi"
                      3⤵
                        PID:3856
                        • C:\Windows\system32\WerFault.exe
                          C:\Windows\system32\WerFault.exe -u -p 3856 -s 188
                          4⤵
                          • Program crash
                          PID:1004
                      • C:\Windows\notepad.exe
                        "C:\Windows\notepad.exe" -c "C:\ProgramData\LKBNMTFJgl\cfgi"
                        3⤵
                          PID:2192
                          • C:\Windows\system32\WerFault.exe
                            C:\Windows\system32\WerFault.exe -u -p 2192 -s 180
                            4⤵
                            • Program crash
                            PID:2652
                        • C:\Windows\notepad.exe
                          "C:\Windows\notepad.exe" -c "C:\ProgramData\LKBNMTFJgl\cfgi"
                          3⤵
                            PID:184
                            • C:\Windows\system32\WerFault.exe
                              C:\Windows\system32\WerFault.exe -u -p 184 -s 192
                              4⤵
                              • Program crash
                              PID:4008
                          • C:\Windows\notepad.exe
                            "C:\Windows\notepad.exe" -c "C:\ProgramData\LKBNMTFJgl\cfgi"
                            3⤵
                              PID:636
                              • C:\Windows\system32\WerFault.exe
                                C:\Windows\system32\WerFault.exe -u -p 636 -s 180
                                4⤵
                                • Program crash
                                PID:4012
                            • C:\Windows\notepad.exe
                              "C:\Windows\notepad.exe" -c "C:\ProgramData\LKBNMTFJgl\cfgi"
                              3⤵
                                PID:4020
                                • C:\Windows\system32\WerFault.exe
                                  C:\Windows\system32\WerFault.exe -u -p 4020 -s 180
                                  4⤵
                                  • Program crash
                                  PID:2156
                              • C:\Windows\notepad.exe
                                "C:\Windows\notepad.exe" -c "C:\ProgramData\LKBNMTFJgl\cfgi"
                                3⤵
                                  PID:1556
                                  • C:\Windows\system32\WerFault.exe
                                    C:\Windows\system32\WerFault.exe -u -p 1556 -s 180
                                    4⤵
                                    • Program crash
                                    PID:3052
                                • C:\Windows\notepad.exe
                                  "C:\Windows\notepad.exe" -c "C:\ProgramData\LKBNMTFJgl\cfgi"
                                  3⤵
                                    PID:4088
                                    • C:\Windows\system32\WerFault.exe
                                      C:\Windows\system32\WerFault.exe -u -p 4088 -s 180
                                      4⤵
                                      • Program crash
                                      PID:3944
                                  • C:\Windows\notepad.exe
                                    "C:\Windows\notepad.exe" -c "C:\ProgramData\LKBNMTFJgl\cfgi"
                                    3⤵
                                      PID:3692
                                      • C:\Windows\system32\WerFault.exe
                                        C:\Windows\system32\WerFault.exe -u -p 3692 -s 180
                                        4⤵
                                        • Program crash
                                        PID:2932
                                    • C:\Windows\notepad.exe
                                      "C:\Windows\notepad.exe" -c "C:\ProgramData\LKBNMTFJgl\cfgi"
                                      3⤵
                                        PID:2740
                                        • C:\Windows\system32\WerFault.exe
                                          C:\Windows\system32\WerFault.exe -u -p 2740 -s 188
                                          4⤵
                                          • Program crash
                                          PID:3860

                                  Network

                                  MITRE ATT&CK Matrix

                                  Replay Monitor

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                                  Downloads

                                  • C:\ProgramData\LKBNMTFJgl\r.vbs
                                    MD5

                                    19b2d791962e01151e4b6a40a90e8cd8

                                    SHA1

                                    a1ee500267dd1d457b3f840f8a00ba808bb46eb3

                                    SHA256

                                    67824e30ec5d2b61ffb266e8a37e9b929e82d507d09d21961b8293c99816c664

                                    SHA512

                                    4d39fd8f11e86490041190f1419273c702ccd85dcc603e5d7acc9d55cc60031ef1f7cc901a2c09b46d6bdc560a4c81d464c8495e7f9e8707ec7cd999f49c49fe

                                  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\viTRMUuKeV.url
                                    MD5

                                    e03e6937ba1878ace3d849b233adecfe

                                    SHA1

                                    affbb4f8b53af6cf35660b775a0a8f70fb95f8b5

                                    SHA256

                                    9846a8975f8e2dbc96cd18d5015c03b4d8226fddf69bcb99a0610c855b0a9e6d

                                    SHA512

                                    99ea03b8635d89409c6e65dc1dd1e995eac8c02e373f3b01faa7d715f347722075cc0d5d629914399505a2ca8ffb80bfa8cafa9d99a2e702d1fcd94fb0baeca9

                                  • memory/184-171-0x0000000000A14AA0-mapping.dmp
                                  • memory/636-176-0x0000000000A14AA0-mapping.dmp
                                  • memory/784-156-0x0000000000A14AA0-mapping.dmp
                                  • memory/1192-151-0x0000000000A14AA0-mapping.dmp
                                  • memory/1484-116-0x0000000000400000-0x00000000005D4000-memory.dmp
                                    Filesize

                                    1.8MB

                                  • memory/1484-118-0x0000000000400000-0x00000000005D4000-memory.dmp
                                    Filesize

                                    1.8MB

                                  • memory/1484-117-0x0000000000404470-mapping.dmp
                                  • memory/1556-186-0x0000000000A14AA0-mapping.dmp
                                  • memory/1576-134-0x0000000000000000-mapping.dmp
                                  • memory/1576-137-0x00000000036E0000-0x00000000038B4000-memory.dmp
                                    Filesize

                                    1.8MB

                                  • memory/2192-166-0x0000000000A14AA0-mapping.dmp
                                  • memory/2440-141-0x0000000000A14AA0-mapping.dmp
                                  • memory/2740-200-0x0000000000A14AA0-mapping.dmp
                                  • memory/2792-126-0x0000000000A14AA0-mapping.dmp
                                  • memory/3024-135-0x0000000000000000-mapping.dmp
                                  • memory/3692-196-0x0000000000A14AA0-mapping.dmp
                                  • memory/3856-161-0x0000000000A14AA0-mapping.dmp
                                  • memory/3880-131-0x0000000000A14AA0-mapping.dmp
                                  • memory/4020-181-0x0000000000A14AA0-mapping.dmp
                                  • memory/4036-121-0x0000000000A14AA0-mapping.dmp
                                  • memory/4036-119-0x0000000000400000-0x0000000000A16000-memory.dmp
                                    Filesize

                                    6.1MB

                                  • memory/4036-120-0x0000000000400000-0x0000000000A16000-memory.dmp
                                    Filesize

                                    6.1MB

                                  • memory/4088-189-0x0000000000400000-0x0000000000400138-memory.dmp
                                    Filesize

                                    312B

                                  • memory/4088-191-0x0000000000A14AA0-mapping.dmp
                                  • memory/4088-146-0x0000000000A14AA0-mapping.dmp