Analysis

  • max time kernel
    147s
  • max time network
    165s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    01/10/2022, 22:07

General

  • Target

    e017ccbc40e8b3b7692182e59ca10072253616f234eb9020b4ee860871563fee.exe

  • Size

    38KB

  • MD5

    74ee9840be1aa7b1a5c0b3546b3745f9

  • SHA1

    7e71c39f23b55cefbb4048eec7136981a4d2b00f

  • SHA256

    e017ccbc40e8b3b7692182e59ca10072253616f234eb9020b4ee860871563fee

  • SHA512

    f20588c273c373b60700ed65ef6399a2243ead038c2c0ed253c5c9faaac96dabb01faf88e5dc841c7bf1d68cb3ab475f575228c5207d4a5a13fc0f96561e856a

  • SSDEEP

    768:objqEFd8yMaZaqj+DQxHedPYy16QVWAGYqr55uuWF:Q/xauaE+2wxWJYMPuus

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Unexpected DNS network traffic destination 10 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

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

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e017ccbc40e8b3b7692182e59ca10072253616f234eb9020b4ee860871563fee.exe
    "C:\Users\Admin\AppData\Local\Temp\e017ccbc40e8b3b7692182e59ca10072253616f234eb9020b4ee860871563fee.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2012
    • C:\Users\Admin\AppData\Local\Temp\e017ccbc40e8b3b7692182e59ca10072253616f234eb9020b4ee860871563fee.exe
      C:\Users\Admin\AppData\Local\Temp\e017ccbc40e8b3b7692182e59ca10072253616f234eb9020b4ee860871563fee.exe
      2⤵
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1920
      • C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe
        "C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe" DEL:C:\Users\Admin\AppData\Local\Temp\e017ccbc40e8b3b7692182e59ca10072253616f234eb9020b4ee860871563fee.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1960
        • C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe
          "C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1076
          • C:\Program Files (x86)\Microsoft Office\Office14\BCSSync .exe
            "C:\Program Files (x86)\Microsoft Office\Office14\BCSSync .exe" "C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe"
            5⤵
              PID:1472

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe

      Filesize

      38KB

      MD5

      e831880021a919aac30d7319914c3076

      SHA1

      9dc200fd66b459303e6a9e8902eca20fa5ab72f2

      SHA256

      85ddfa5cdab90408f0f514dae04a3699996ca6df315dccb14c9b7a93a3fb8825

      SHA512

      f7bca5eb50138988596da2931bbc43eba0ddcef0f8690718613a74861e6ad97637db3ef1e53879f3ff67c8f95f7c6445a50bfcb1972f637b40f01673ecff03c3

    • C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe

      Filesize

      38KB

      MD5

      e831880021a919aac30d7319914c3076

      SHA1

      9dc200fd66b459303e6a9e8902eca20fa5ab72f2

      SHA256

      85ddfa5cdab90408f0f514dae04a3699996ca6df315dccb14c9b7a93a3fb8825

      SHA512

      f7bca5eb50138988596da2931bbc43eba0ddcef0f8690718613a74861e6ad97637db3ef1e53879f3ff67c8f95f7c6445a50bfcb1972f637b40f01673ecff03c3

    • C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe

      Filesize

      38KB

      MD5

      e831880021a919aac30d7319914c3076

      SHA1

      9dc200fd66b459303e6a9e8902eca20fa5ab72f2

      SHA256

      85ddfa5cdab90408f0f514dae04a3699996ca6df315dccb14c9b7a93a3fb8825

      SHA512

      f7bca5eb50138988596da2931bbc43eba0ddcef0f8690718613a74861e6ad97637db3ef1e53879f3ff67c8f95f7c6445a50bfcb1972f637b40f01673ecff03c3

    • \Program Files (x86)\Microsoft Office\Office14\BCSSync.exe

      Filesize

      38KB

      MD5

      e831880021a919aac30d7319914c3076

      SHA1

      9dc200fd66b459303e6a9e8902eca20fa5ab72f2

      SHA256

      85ddfa5cdab90408f0f514dae04a3699996ca6df315dccb14c9b7a93a3fb8825

      SHA512

      f7bca5eb50138988596da2931bbc43eba0ddcef0f8690718613a74861e6ad97637db3ef1e53879f3ff67c8f95f7c6445a50bfcb1972f637b40f01673ecff03c3

    • \Program Files (x86)\Microsoft Office\Office14\BCSSync.exe

      Filesize

      38KB

      MD5

      e831880021a919aac30d7319914c3076

      SHA1

      9dc200fd66b459303e6a9e8902eca20fa5ab72f2

      SHA256

      85ddfa5cdab90408f0f514dae04a3699996ca6df315dccb14c9b7a93a3fb8825

      SHA512

      f7bca5eb50138988596da2931bbc43eba0ddcef0f8690718613a74861e6ad97637db3ef1e53879f3ff67c8f95f7c6445a50bfcb1972f637b40f01673ecff03c3

    • memory/1076-86-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/1920-58-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/1920-59-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/1920-60-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/1920-57-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/1920-55-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/1920-54-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/1920-82-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/1920-64-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/1920-85-0x0000000074351000-0x0000000074353000-memory.dmp

      Filesize

      8KB

    • memory/1920-63-0x0000000075E81000-0x0000000075E83000-memory.dmp

      Filesize

      8KB