Analysis

  • max time kernel
    120s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    13-08-2023 10:16

General

  • Target

    a736c699fe879975bc8daa8525984ba514ae96a294f74d570dff0cbfd2117e24exeexe_JC.dll

  • Size

    5.9MB

  • MD5

    79c80f6c916250dfad7f433e1ff950ee

  • SHA1

    e281b0719592b08b28184decdc1ea5ba9b33e46b

  • SHA256

    a736c699fe879975bc8daa8525984ba514ae96a294f74d570dff0cbfd2117e24

  • SHA512

    d6c1392a886fafb3d750abb32dc4be6f5a01205d51e18cf0456eae7aecb2c6a9ea88e96c9880d7269577f013a91dd1e70e433938b835156ad63ad15b704e84ba

  • SSDEEP

    98304:jLuSoV+yTXcmw9ghSxaq+zRliwT6MAUzk2wQuvvsn+AwUbbXw:+BrBphSxa7zXRTkUzkYuG+AwUPX

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\a736c699fe879975bc8daa8525984ba514ae96a294f74d570dff0cbfd2117e24exeexe_JC.dll,#1
    1⤵
    • Blocklisted process makes network request
    • Suspicious behavior: EnumeratesProcesses
    PID:2812

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2812-54-0x0000000077710000-0x0000000077712000-memory.dmp

    Filesize

    8KB

  • memory/2812-56-0x000007FEF4FA0000-0x000007FEF5996000-memory.dmp

    Filesize

    10.0MB

  • memory/2812-57-0x0000000077710000-0x0000000077712000-memory.dmp

    Filesize

    8KB

  • memory/2812-59-0x0000000077710000-0x0000000077712000-memory.dmp

    Filesize

    8KB

  • memory/2812-60-0x0000000077720000-0x0000000077722000-memory.dmp

    Filesize

    8KB

  • memory/2812-62-0x0000000077720000-0x0000000077722000-memory.dmp

    Filesize

    8KB

  • memory/2812-64-0x0000000077720000-0x0000000077722000-memory.dmp

    Filesize

    8KB

  • memory/2812-65-0x0000000077730000-0x0000000077732000-memory.dmp

    Filesize

    8KB

  • memory/2812-67-0x0000000077730000-0x0000000077732000-memory.dmp

    Filesize

    8KB

  • memory/2812-69-0x0000000077730000-0x0000000077732000-memory.dmp

    Filesize

    8KB

  • memory/2812-70-0x0000000077740000-0x0000000077742000-memory.dmp

    Filesize

    8KB

  • memory/2812-72-0x0000000077740000-0x0000000077742000-memory.dmp

    Filesize

    8KB

  • memory/2812-74-0x0000000077740000-0x0000000077742000-memory.dmp

    Filesize

    8KB

  • memory/2812-77-0x000007FEFD650000-0x000007FEFD652000-memory.dmp

    Filesize

    8KB

  • memory/2812-79-0x000007FEFD650000-0x000007FEFD652000-memory.dmp

    Filesize

    8KB

  • memory/2812-82-0x000007FEFD660000-0x000007FEFD662000-memory.dmp

    Filesize

    8KB

  • memory/2812-84-0x000007FEFD660000-0x000007FEFD662000-memory.dmp

    Filesize

    8KB

  • memory/2812-85-0x0000000077750000-0x0000000077752000-memory.dmp

    Filesize

    8KB

  • memory/2812-87-0x0000000077750000-0x0000000077752000-memory.dmp

    Filesize

    8KB

  • memory/2812-89-0x0000000077750000-0x0000000077752000-memory.dmp

    Filesize

    8KB

  • memory/2812-91-0x0000000077560000-0x0000000077709000-memory.dmp

    Filesize

    1.7MB

  • memory/2812-90-0x000007FEF4FA0000-0x000007FEF5996000-memory.dmp

    Filesize

    10.0MB

  • memory/2812-92-0x0000000077560000-0x0000000077709000-memory.dmp

    Filesize

    1.7MB