Analysis

  • max time kernel
    126s
  • max time network
    163s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    22-07-2021 12:35

General

  • Target

    TLL.exe

  • Size

    929KB

  • MD5

    5636b827940a35459b1da7d2134d2eda

  • SHA1

    440239dfd292d496f1b1e76541168768e9d9abd3

  • SHA256

    5f15219a3137edce6d551f39a939d0d31fefb8b87d82f38be81c5ff6c7f60ce7

  • SHA512

    17ad6c4085a3688ccd11cf4e262b637cfa1cfcf84f98aa4ade4a1b472df87f424d5aeb8ccef9d5eebbde99bbac69a7793ef128edca74a1b7800f38d284063276

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in Windows directory 2 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 AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TLL.exe
    "C:\Users\Admin\AppData\Local\Temp\TLL.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1308
    • C:\Users\Admin\AppData\Roaming\Microsoft\MMC\SessionManager.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\MMC\SessionManager.exe" 1308
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1304
      • C:\Windows\SystemPropertiesPerformance.exe
        "C:\Windows\SystemPropertiesPerformance.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1724

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\MMC\SessionManager.exe

    MD5

    5636b827940a35459b1da7d2134d2eda

    SHA1

    440239dfd292d496f1b1e76541168768e9d9abd3

    SHA256

    5f15219a3137edce6d551f39a939d0d31fefb8b87d82f38be81c5ff6c7f60ce7

    SHA512

    17ad6c4085a3688ccd11cf4e262b637cfa1cfcf84f98aa4ade4a1b472df87f424d5aeb8ccef9d5eebbde99bbac69a7793ef128edca74a1b7800f38d284063276

  • C:\Users\Admin\AppData\Roaming\Microsoft\MMC\SessionManager.exe

    MD5

    5636b827940a35459b1da7d2134d2eda

    SHA1

    440239dfd292d496f1b1e76541168768e9d9abd3

    SHA256

    5f15219a3137edce6d551f39a939d0d31fefb8b87d82f38be81c5ff6c7f60ce7

    SHA512

    17ad6c4085a3688ccd11cf4e262b637cfa1cfcf84f98aa4ade4a1b472df87f424d5aeb8ccef9d5eebbde99bbac69a7793ef128edca74a1b7800f38d284063276

  • C:\Windows\SystemPropertiesPerformance.exe

    MD5

    5636b827940a35459b1da7d2134d2eda

    SHA1

    440239dfd292d496f1b1e76541168768e9d9abd3

    SHA256

    5f15219a3137edce6d551f39a939d0d31fefb8b87d82f38be81c5ff6c7f60ce7

    SHA512

    17ad6c4085a3688ccd11cf4e262b637cfa1cfcf84f98aa4ade4a1b472df87f424d5aeb8ccef9d5eebbde99bbac69a7793ef128edca74a1b7800f38d284063276

  • C:\Windows\SystemPropertiesPerformance.exe

    MD5

    5636b827940a35459b1da7d2134d2eda

    SHA1

    440239dfd292d496f1b1e76541168768e9d9abd3

    SHA256

    5f15219a3137edce6d551f39a939d0d31fefb8b87d82f38be81c5ff6c7f60ce7

    SHA512

    17ad6c4085a3688ccd11cf4e262b637cfa1cfcf84f98aa4ade4a1b472df87f424d5aeb8ccef9d5eebbde99bbac69a7793ef128edca74a1b7800f38d284063276

  • \Users\Admin\AppData\Roaming\Microsoft\MMC\SessionManager.exe

    MD5

    5636b827940a35459b1da7d2134d2eda

    SHA1

    440239dfd292d496f1b1e76541168768e9d9abd3

    SHA256

    5f15219a3137edce6d551f39a939d0d31fefb8b87d82f38be81c5ff6c7f60ce7

    SHA512

    17ad6c4085a3688ccd11cf4e262b637cfa1cfcf84f98aa4ade4a1b472df87f424d5aeb8ccef9d5eebbde99bbac69a7793ef128edca74a1b7800f38d284063276

  • memory/1304-82-0x0000000004E70000-0x0000000004F1C000-memory.dmp

    Filesize

    688KB

  • memory/1304-80-0x0000000000B90000-0x0000000000B91000-memory.dmp

    Filesize

    4KB

  • memory/1304-66-0x0000000000000000-mapping.dmp

  • memory/1304-69-0x0000000000D00000-0x0000000000D01000-memory.dmp

    Filesize

    4KB

  • memory/1308-65-0x00000000042C0000-0x00000000042C1000-memory.dmp

    Filesize

    4KB

  • memory/1308-60-0x0000000000180000-0x0000000000181000-memory.dmp

    Filesize

    4KB

  • memory/1308-63-0x00000000004C0000-0x0000000000505000-memory.dmp

    Filesize

    276KB

  • memory/1308-62-0x0000000075451000-0x0000000075453000-memory.dmp

    Filesize

    8KB

  • memory/1724-73-0x0000000000000000-mapping.dmp

  • memory/1724-76-0x0000000001320000-0x0000000001321000-memory.dmp

    Filesize

    4KB

  • memory/1724-81-0x0000000004B70000-0x0000000004B71000-memory.dmp

    Filesize

    4KB