Analysis

  • max time kernel
    141s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    09-12-2022 18:49

General

  • Target

    c1f83eca657eb74769e9df053eb430c11cbcb123004179f2196fec6f45e48099.dll

  • Size

    900KB

  • MD5

    eb8481241f6347275135e63babf426e7

  • SHA1

    9619feea2a3af4d1d08116ee7053c11eb8039962

  • SHA256

    c1f83eca657eb74769e9df053eb430c11cbcb123004179f2196fec6f45e48099

  • SHA512

    45fa8f03d2a1752aed82bda562a710d33057ae82d316827c0d503f4fca868f13d9b8da5f612cc8290bd1bce1b9b33e85d3e96c328583e2b2bfdf275e0e5264f9

  • SSDEEP

    24576:D41L5Y9ORyViS5qWJwQUW+aekXKdrxb4:w2YM2tYadrx

Score
10/10

Malware Config

Extracted

Family

systembc

C2

104.238.140.73:4177

149.28.72.85:4177

Signatures

  • SystemBC

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

  • Blocklisted process makes network request 13 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\c1f83eca657eb74769e9df053eb430c11cbcb123004179f2196fec6f45e48099.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2012
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\c1f83eca657eb74769e9df053eb430c11cbcb123004179f2196fec6f45e48099.dll,#1
      2⤵
      • Blocklisted process makes network request
      PID:2036

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/2036-54-0x0000000000000000-mapping.dmp

  • memory/2036-55-0x0000000074B51000-0x0000000074B53000-memory.dmp

    Filesize

    8KB

  • memory/2036-56-0x0000000000860000-0x0000000000944000-memory.dmp

    Filesize

    912KB

  • memory/2036-57-0x0000000000170000-0x0000000000176000-memory.dmp

    Filesize

    24KB

  • memory/2036-58-0x0000000000190000-0x0000000000197000-memory.dmp

    Filesize

    28KB