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Analysis

  • max time kernel
    21s
  • max time network
    13s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    09/08/2021, 08:08

General

  • Target

    usfive_20210809-095748.exe

  • Size

    511KB

  • MD5

    4be0cbe1709ca5653bcc77a22511dd46

  • SHA1

    c4492e5cfe705f705fb08bcb3dfe0b30af408d36

  • SHA256

    244d3624209d79d74194422cb15ca209f957088aa1ee87a7cffadd0d6d3dfbc1

  • SHA512

    b769a084d811065e8f14fced9b8f67d7b1b8b1d557381256f9321da694724cbe3bab9621899a8987ae2429f3a919f1f47c1336d031340d77056387ef0218a790

Malware Config

Extracted

Family

raccoon

Botnet

c58b0b3f1f90ad7552aaf8e84180b7580f397001

Attributes
  • url4cnc

    https://telete.in/h_electricryptors2

rc4.plain
rc4.plain

Signatures

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Raccoon Stealer Payload 2 IoCs
  • Downloads MZ/PE file
  • Deletes itself 1 IoCs
  • Loads dropped DLL 8 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\usfive_20210809-095748.exe
    "C:\Users\Admin\AppData\Local\Temp\usfive_20210809-095748.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:360
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\usfive_20210809-095748.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1596
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:1568

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/360-62-0x0000000000400000-0x0000000002CB5000-memory.dmp

    Filesize

    40.7MB

  • memory/360-61-0x0000000000220000-0x00000000002B3000-memory.dmp

    Filesize

    588KB

  • memory/360-60-0x0000000075451000-0x0000000075453000-memory.dmp

    Filesize

    8KB