Analysis

  • max time kernel
    120s
  • max time network
    256s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    09/08/2023, 03:45

General

  • Target
    b2b82c1977c17aec7ba0074f56c0d61100e616a0ce72dab748ec4269db6c0793.dll
  • Size 6.0MB
  • Sample230809-ebb8gsae8t
  • SHA256 b2b82c1977c17aec7ba0074f56c0d61100e616a0ce72dab748ec4269db6c0793
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • systembc

C2
  • 5.42.65.67:4298

  • localhost.exchange:4298

Signatures

  • SystemBC

    SystemBC is a proxy and remote administration tool first seen in 2019.

  • Blocklisted process makes network request 1 IoCs
  • VMProtect packed file 2 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b2b82c1977c17aec7ba0074f56c0d61100e616a0ce72dab748ec4269db6c0793.dll,#1
    1⤵
    • Blocklisted process makes network request
    • Suspicious behavior: EnumeratesProcesses
    PID:2572

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/2572-54-0x0000000076EF0000-0x0000000076EF2000-memory.dmp

        memory/2572-57-0x000007FEF4560000-0x000007FEF4FE4000-memory.dmp

        memory/2572-56-0x0000000076EF0000-0x0000000076EF2000-memory.dmp

        memory/2572-59-0x0000000076EF0000-0x0000000076EF2000-memory.dmp

        memory/2572-60-0x0000000076F00000-0x0000000076F02000-memory.dmp

        memory/2572-62-0x0000000076F00000-0x0000000076F02000-memory.dmp

        memory/2572-64-0x0000000076F00000-0x0000000076F02000-memory.dmp

        memory/2572-65-0x0000000076F10000-0x0000000076F12000-memory.dmp

        memory/2572-67-0x0000000076F10000-0x0000000076F12000-memory.dmp

        memory/2572-69-0x0000000076F10000-0x0000000076F12000-memory.dmp

        memory/2572-70-0x0000000076F20000-0x0000000076F22000-memory.dmp

        memory/2572-72-0x0000000076F20000-0x0000000076F22000-memory.dmp

        memory/2572-74-0x0000000076F20000-0x0000000076F22000-memory.dmp

        memory/2572-77-0x000007FEFCD90000-0x000007FEFCD92000-memory.dmp

        memory/2572-79-0x000007FEFCD90000-0x000007FEFCD92000-memory.dmp

        memory/2572-82-0x000007FEFCDA0000-0x000007FEFCDA2000-memory.dmp

        memory/2572-84-0x000007FEFCDA0000-0x000007FEFCDA2000-memory.dmp

        memory/2572-85-0x0000000076F30000-0x0000000076F32000-memory.dmp

        memory/2572-87-0x0000000076F30000-0x0000000076F32000-memory.dmp

        memory/2572-90-0x0000000076D40000-0x0000000076EE9000-memory.dmp

        memory/2572-89-0x0000000076F30000-0x0000000076F32000-memory.dmp

        memory/2572-91-0x000007FEF4560000-0x000007FEF4FE4000-memory.dmp

        memory/2572-92-0x0000000076D40000-0x0000000076EE9000-memory.dmp