Analysis

  • max time kernel
    139s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    18/06/2021, 06:49

General

  • Target
    d002fd64bfdd7944bfedf5f0bad651bd.exe
  • Size 1.1MB
  • Sample210618-abl979l87e
  • SHA256 36dbcbd2fd7ca9dce07e4fb345b4e2f08bc514a8ecd776a2212a3897e9e6ef55
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Blocklisted process makes network request 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 24 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d002fd64bfdd7944bfedf5f0bad651bd.exe
    "C:\Users\Admin\AppData\Local\Temp\d002fd64bfdd7944bfedf5f0bad651bd.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3944
    • C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\D002FD~1.TMP,S C:\Users\Admin\AppData\Local\Temp\D002FD~1.EXE
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:3308
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\system32\rundll32.exe C:\PROGRA~3\LAUVHF~1\JHAKLD~1.TMP,cU8iTg== C:\Users\Admin\AppData\Local\Temp\D002FD~1.TMP
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Checks processor information in registry
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:3932
        • C:\Windows\system32\rundll32.exe
          C:\Windows\system32\rundll32.exe C:\Windows\system32\shell32.dll,#61 31801
          4⤵
            PID:2208
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Executionpolicy bypass -File "C:\Users\Admin\AppData\Local\Temp\tmpE3FD.tmp.ps1"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:852
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Executionpolicy bypass -File "C:\Users\Admin\AppData\Local\Temp\tmpF813.tmp.ps1"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2472
            • C:\Windows\SysWOW64\nslookup.exe
              "C:\Windows\system32\nslookup.exe" -type=any localhost
              5⤵
                PID:928
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /End /tn \Microsoft\Windows\Wininet\CacheTask
              4⤵
                PID:964
              • C:\Windows\SysWOW64\schtasks.exe
                schtasks /Run /tn \Microsoft\Windows\Wininet\CacheTask
                4⤵
                  PID:2204

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                memory/852-162-0x0000000006763000-0x0000000006764000-memory.dmp

                memory/852-157-0x00000000096D0000-0x00000000096D1000-memory.dmp

                memory/852-159-0x0000000008D00000-0x0000000008D01000-memory.dmp

                memory/852-140-0x00000000067B0000-0x00000000067B1000-memory.dmp

                memory/852-141-0x0000000006E20000-0x0000000006E21000-memory.dmp

                memory/852-142-0x0000000007480000-0x0000000007481000-memory.dmp

                memory/852-143-0x0000000007700000-0x0000000007701000-memory.dmp

                memory/852-144-0x0000000007520000-0x0000000007521000-memory.dmp

                memory/852-145-0x0000000007860000-0x0000000007861000-memory.dmp

                memory/852-146-0x0000000006760000-0x0000000006761000-memory.dmp

                memory/852-147-0x0000000006762000-0x0000000006763000-memory.dmp

                memory/852-148-0x0000000007790000-0x0000000007791000-memory.dmp

                memory/852-149-0x0000000007F40000-0x0000000007F41000-memory.dmp

                memory/852-150-0x0000000007F90000-0x0000000007F91000-memory.dmp

                memory/852-158-0x0000000008C50000-0x0000000008C51000-memory.dmp

                memory/852-152-0x0000000007EF0000-0x0000000007EF1000-memory.dmp

                memory/2208-135-0x0000000000C60000-0x0000000000E00000-memory.dmp

                memory/2208-136-0x00000193C8EF0000-0x00000193C90A1000-memory.dmp

                memory/2472-190-0x0000000007223000-0x0000000007224000-memory.dmp

                memory/2472-172-0x00000000081F0000-0x00000000081F1000-memory.dmp

                memory/2472-175-0x0000000008600000-0x0000000008601000-memory.dmp

                memory/2472-176-0x0000000007220000-0x0000000007221000-memory.dmp

                memory/2472-177-0x0000000007222000-0x0000000007223000-memory.dmp

                memory/3932-123-0x0000000000B10000-0x0000000000C51000-memory.dmp

                memory/3932-134-0x0000000001050000-0x0000000001051000-memory.dmp

                memory/3944-117-0x00000000027B0000-0x000000000289D000-memory.dmp

                memory/3944-118-0x0000000000400000-0x00000000009B6000-memory.dmp