Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    19-03-2022 06:55

General

  • Target

    c37e79057ccdd18492554cfb1d86d77a69667ce2a8b0841d560f12eb479f356a.exe

  • Size

    173KB

  • MD5

    b116459b4baffd9c1efd7153884f9d35

  • SHA1

    673fd7eb331a1c5645fa4264f85bbd722531f318

  • SHA256

    c37e79057ccdd18492554cfb1d86d77a69667ce2a8b0841d560f12eb479f356a

  • SHA512

    6f09a7b7be8a3f4519492d387e2c1441e70cc411eafb2e463ce0f0b802e9b672a60895b778a27adaa5a55d9fd35c3285a342658ca77cd1240c026efb10eea1aa

Score
10/10

Malware Config

Extracted

Family

systembc

C2

dec15coma.com:4039

dec15coma.xyz:4039

Signatures

  • SystemBC

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Uses Tor communications 1 TTPs

    Malware can proxy its traffic through Tor for more anonymity.

  • Drops file in Windows directory 2 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c37e79057ccdd18492554cfb1d86d77a69667ce2a8b0841d560f12eb479f356a.exe
    "C:\Users\Admin\AppData\Local\Temp\c37e79057ccdd18492554cfb1d86d77a69667ce2a8b0841d560f12eb479f356a.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:2576
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2576 -s 948
      2⤵
      • Program crash
      PID:1844
  • C:\ProgramData\pmqx\lbebx.exe
    C:\ProgramData\pmqx\lbebx.exe start
    1⤵
    • Executes dropped EXE
    PID:4292
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2576 -ip 2576
    1⤵
      PID:2352

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\pmqx\lbebx.exe

      MD5

      b116459b4baffd9c1efd7153884f9d35

      SHA1

      673fd7eb331a1c5645fa4264f85bbd722531f318

      SHA256

      c37e79057ccdd18492554cfb1d86d77a69667ce2a8b0841d560f12eb479f356a

      SHA512

      6f09a7b7be8a3f4519492d387e2c1441e70cc411eafb2e463ce0f0b802e9b672a60895b778a27adaa5a55d9fd35c3285a342658ca77cd1240c026efb10eea1aa

    • C:\ProgramData\pmqx\lbebx.exe

      MD5

      b116459b4baffd9c1efd7153884f9d35

      SHA1

      673fd7eb331a1c5645fa4264f85bbd722531f318

      SHA256

      c37e79057ccdd18492554cfb1d86d77a69667ce2a8b0841d560f12eb479f356a

      SHA512

      6f09a7b7be8a3f4519492d387e2c1441e70cc411eafb2e463ce0f0b802e9b672a60895b778a27adaa5a55d9fd35c3285a342658ca77cd1240c026efb10eea1aa

    • memory/2576-130-0x0000000000030000-0x0000000000036000-memory.dmp

      Filesize

      24KB

    • memory/2576-131-0x00000000001C0000-0x00000000001C9000-memory.dmp

      Filesize

      36KB

    • memory/2576-132-0x0000000000400000-0x00000000047B7000-memory.dmp

      Filesize

      67.7MB

    • memory/4292-135-0x0000000000400000-0x00000000047B7000-memory.dmp

      Filesize

      67.7MB