Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    05/12/2020, 07:25

General

  • Target
    3ca6df4914385efd4ba9cd239b5ed254.exe
  • Size 4.5MB
  • Sample201205-wygr8zgpvx
  • SHA256 0acebaf80946be0cb3099233e8807aa775c8304fc3dee48d42241ff68b7ab318
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Executes dropped EXE 8 IoCs
  • Suspicious Office macro 1 IoCs

    Office document equipped with 4.0 macros.

  • Loads dropped DLL 23 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates connected drives 3 TTPs 48 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • JavaScript code in executable 3 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 4 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Drops file in Program Files directory 6 IoCs
  • NSIS installer 16 IoCs
  • Kills process with taskkill 1 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Runs ping.exe 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 94 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 120 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3ca6df4914385efd4ba9cd239b5ed254.exe
    "C:\Users\Admin\AppData\Local\Temp\3ca6df4914385efd4ba9cd239b5ed254.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1744
    • C:\Users\Admin\AppData\Local\Temp\sib560.tmp\0\setup.exe
      "C:\Users\Admin\AppData\Local\Temp\sib560.tmp\0\setup.exe" -s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:1144
      • C:\Program Files (x86)\71eza90awf48\aliens.exe
        "C:\Program Files (x86)\71eza90awf48\aliens.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Writes to the Master Boot Record (MBR)
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Modifies system certificate store
        • Suspicious use of WriteProcessMemory
        PID:1672
        • C:\Windows\SysWOW64\msiexec.exe
          msiexec.exe /i "C:\Users\Admin\AppData\Local\Temp\gdiview.msi"
          4⤵
          • Enumerates connected drives
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          PID:1504
        • C:\Users\Admin\AppData\Local\Temp\1E1C360C582DF797.exe
          C:\Users\Admin\AppData\Local\Temp\1E1C360C582DF797.exe 0011 installp3
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Writes to the Master Boot Record (MBR)
          • Suspicious use of SetThreadContext
          • Modifies system certificate store
          • Suspicious use of WriteProcessMemory
          PID:1276
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe"
            5⤵
              PID:1876
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe"
              5⤵
                PID:1656
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe"
                5⤵
                  PID:1244
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe"
                  5⤵
                    PID:1528
                  • C:\Users\Admin\AppData\Local\Temp\download\ThunderFW.exe
                    C:\Users\Admin\AppData\Local\Temp\download\ThunderFW.exe ThunderFW "C:\Users\Admin\AppData\Local\Temp\download\MiniThunderPlatform.exe"
                    5⤵
                    • Executes dropped EXE
                    PID:1996
                  • C:\Users\Admin\AppData\Local\Temp\download\MiniThunderPlatform.exe
                    "C:\Users\Admin\AppData\Local\Temp\download\MiniThunderPlatform.exe" -StartTP
                    5⤵
                    • Executes dropped EXE
                    • Loads dropped DLL
                    • Writes to the Master Boot Record (MBR)
                    PID:1696
                  • C:\Users\Admin\AppData\Local\Temp\23E04C4F32EF2158.exe
                    C:\Users\Admin\AppData\Local\Temp\23E04C4F32EF2158.exe /silent
                    5⤵
                    • Executes dropped EXE
                    • Loads dropped DLL
                    PID:1200
                    • C:\Users\Admin\AppData\Local\Temp\is-9RILE.tmp\23E04C4F32EF2158.tmp
                      "C:\Users\Admin\AppData\Local\Temp\is-9RILE.tmp\23E04C4F32EF2158.tmp" /SL5="$6016C,755315,121344,C:\Users\Admin\AppData\Local\Temp\23E04C4F32EF2158.exe" /silent
                      6⤵
                      • Executes dropped EXE
                      • Drops file in Program Files directory
                      • Suspicious behavior: EnumeratesProcesses
                      PID:1180
                • C:\Users\Admin\AppData\Local\Temp\1E1C360C582DF797.exe
                  C:\Users\Admin\AppData\Local\Temp\1E1C360C582DF797.exe 200 installp3
                  4⤵
                  • Executes dropped EXE
                  • Writes to the Master Boot Record (MBR)
                  • Suspicious use of WriteProcessMemory
                  PID:516
                  • C:\Windows\SysWOW64\cmd.exe
                    cmd.exe /c taskkill /f /im chrome.exe
                    5⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1300
                    • C:\Windows\SysWOW64\taskkill.exe
                      taskkill /f /im chrome.exe
                      6⤵
                      • Kills process with taskkill
                      PID:1448
                  • C:\Windows\SysWOW64\cmd.exe
                    cmd /c ping 127.0.0.1 -n 3 & del "C:\Users\Admin\AppData\Local\Temp\1E1C360C582DF797.exe"
                    5⤵
                      PID:616
                      • C:\Windows\SysWOW64\PING.EXE
                        ping 127.0.0.1 -n 3
                        6⤵
                        • Runs ping.exe
                        PID:1264
                  • C:\Windows\SysWOW64\cmd.exe
                    cmd /c ping 127.0.0.1 -n 3 & del "C:\Program Files (x86)\71eza90awf48\aliens.exe"
                    4⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1760
                    • C:\Windows\SysWOW64\PING.EXE
                      ping 127.0.0.1 -n 3
                      5⤵
                      • Runs ping.exe
                      PID:1860
            • C:\Windows\system32\msiexec.exe
              C:\Windows\system32\msiexec.exe /V
              1⤵
              • Enumerates connected drives
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:340
              • C:\Windows\syswow64\MsiExec.exe
                C:\Windows\syswow64\MsiExec.exe -Embedding ADBB5EC15F4D8C273C31D7AA7691240F C
                2⤵
                • Loads dropped DLL
                PID:1064

            Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  memory/516-32-0x0000000010000000-0x000000001033D000-memory.dmp

                  memory/516-35-0x0000000003380000-0x0000000003831000-memory.dmp

                  memory/1276-36-0x0000000003200000-0x00000000036B1000-memory.dmp

                  memory/1324-41-0x000007FEF7730000-0x000007FEF79AA000-memory.dmp

                  memory/1504-20-0x00000000031C0000-0x00000000031C4000-memory.dmp

                  memory/1672-17-0x0000000010000000-0x000000001033D000-memory.dmp

                  memory/1696-79-0x000000000C8F0000-0x000000000C8F1000-memory.dmp

                  memory/1744-8-0x000000000E510000-0x000000000E511000-memory.dmp

                  memory/1744-6-0x0000000002790000-0x0000000002791000-memory.dmp

                  memory/1744-3-0x00000000740D0000-0x00000000747BE000-memory.dmp

                  memory/1876-39-0x0000000010000000-0x0000000010057000-memory.dmp