Analysis

  • max time kernel
    142s
  • max time network
    194s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    17-09-2021 16:16

General

  • Target

    62b76c6b344a690944da5a9348059f55f60ceded8f526b6c424d0ff43f8b74e5.exe

  • Size

    33KB

  • MD5

    8363135b1c443a979ccc232d67c4db6e

  • SHA1

    269208672fe7ea3a4d333fffb5ab4611d396053a

  • SHA256

    62b76c6b344a690944da5a9348059f55f60ceded8f526b6c424d0ff43f8b74e5

  • SHA512

    a8e395e77503d7e24145eec84ffd06c117482d378122d1748c60c4a3702d93174da6da87eafeb724e1a0776328ed45faf8c13d3fead476af6271e54028cf0fa7

Score
10/10

Malware Config

Extracted

Family

systembc

C2

websitetbox.com:4035

backupboxsite.com:4035

Signatures

  • SystemBC

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

  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\62b76c6b344a690944da5a9348059f55f60ceded8f526b6c424d0ff43f8b74e5.exe
    "C:\Users\Admin\AppData\Local\Temp\62b76c6b344a690944da5a9348059f55f60ceded8f526b6c424d0ff43f8b74e5.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:1980
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {A4A2E671-F7EA-438C-8432-279E8B49B89B} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:660
    • C:\ProgramData\uiaiam\hwesa.exe
      C:\ProgramData\uiaiam\hwesa.exe start
      2⤵
      • Executes dropped EXE
      PID:1724

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\ProgramData\uiaiam\hwesa.exe

    MD5

    8363135b1c443a979ccc232d67c4db6e

    SHA1

    269208672fe7ea3a4d333fffb5ab4611d396053a

    SHA256

    62b76c6b344a690944da5a9348059f55f60ceded8f526b6c424d0ff43f8b74e5

    SHA512

    a8e395e77503d7e24145eec84ffd06c117482d378122d1748c60c4a3702d93174da6da87eafeb724e1a0776328ed45faf8c13d3fead476af6271e54028cf0fa7

  • C:\ProgramData\uiaiam\hwesa.exe

    MD5

    8363135b1c443a979ccc232d67c4db6e

    SHA1

    269208672fe7ea3a4d333fffb5ab4611d396053a

    SHA256

    62b76c6b344a690944da5a9348059f55f60ceded8f526b6c424d0ff43f8b74e5

    SHA512

    a8e395e77503d7e24145eec84ffd06c117482d378122d1748c60c4a3702d93174da6da87eafeb724e1a0776328ed45faf8c13d3fead476af6271e54028cf0fa7

  • memory/1724-62-0x0000000000000000-mapping.dmp

  • memory/1980-60-0x00000000767B1000-0x00000000767B3000-memory.dmp

    Filesize

    8KB