Resubmissions

27-12-2021 06:52

211227-hnfm8accf6 10

27-10-2021 06:35

211027-hcvb8sagg8 10

25-10-2021 05:54

211025-gl6wysgegl 10

Analysis

  • max time kernel
    117s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    27-10-2021 06:35

General

  • Target

    073bc58ee928f589d0ed4fc556df8d11477c29590c5239bbb02392fcfe88458c.exe

  • Size

    331KB

  • MD5

    bf03442f038443b9e4eff1081bb51c38

  • SHA1

    c0c66486acc3c13ab842cb13a2a40ce316b7fc00

  • SHA256

    073bc58ee928f589d0ed4fc556df8d11477c29590c5239bbb02392fcfe88458c

  • SHA512

    3eb5a6272b091e7a6a132dd09ed9d5739d67a6fc31a5289e63f4f0393288e4c44048a616c3514bddb8b0675b14c858224444d2926d38eeb1ad7a9c5d4307d733

Score
10/10

Malware Config

Extracted

Family

systembc

C2

185.173.39.49:4001

Signatures

  • SystemBC

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

  • Drops file in Windows directory 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\073bc58ee928f589d0ed4fc556df8d11477c29590c5239bbb02392fcfe88458c.exe
    "C:\Users\Admin\AppData\Local\Temp\073bc58ee928f589d0ed4fc556df8d11477c29590c5239bbb02392fcfe88458c.exe"
    1⤵
    • Drops file in Windows directory
    PID:1936
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {B203314B-A35B-4B99-9430-72D812D0C799} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1456
    • C:\Users\Admin\AppData\Local\Temp\073bc58ee928f589d0ed4fc556df8d11477c29590c5239bbb02392fcfe88458c.exe
      C:\Users\Admin\AppData\Local\Temp\073bc58ee928f589d0ed4fc556df8d11477c29590c5239bbb02392fcfe88458c.exe start
      2⤵
        PID:1404

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1404-58-0x0000000000000000-mapping.dmp

    • memory/1404-59-0x000000000024B000-0x000000000025C000-memory.dmp

      Filesize

      68KB

    • memory/1404-61-0x0000000000400000-0x0000000002DAA000-memory.dmp

      Filesize

      41.7MB

    • memory/1936-54-0x00000000002AB000-0x00000000002BC000-memory.dmp

      Filesize

      68KB

    • memory/1936-55-0x0000000076B61000-0x0000000076B63000-memory.dmp

      Filesize

      8KB

    • memory/1936-56-0x00000000001C0000-0x00000000001C5000-memory.dmp

      Filesize

      20KB

    • memory/1936-57-0x0000000000400000-0x0000000002DAA000-memory.dmp

      Filesize

      41.7MB