Analysis

  • max time kernel
    123s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    20-10-2021 06:24

General

  • Target

    83c11e7d4fcf13515fc5be9938dd75be.exe

  • Size

    641KB

  • MD5

    83c11e7d4fcf13515fc5be9938dd75be

  • SHA1

    5b1267583abf7803a20aa63bc9739894ee567c31

  • SHA256

    df9ce9ef0fe2c633c368b9859f6f88672b5be6867c52ad54d6b7ab42081893fd

  • SHA512

    6b07e7e369554e6bbe036263ef93fe2019606d8ac68049bc44b03dbcaccc5e4f47975fc59d5d54a9fde6bfced9e51f44340de1c8bc3e92f6cbbf84c99fb5f2b2

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    budgetn.shop
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    rSJ9l_d%#+1Z

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\83c11e7d4fcf13515fc5be9938dd75be.exe
    "C:\Users\Admin\AppData\Local\Temp\83c11e7d4fcf13515fc5be9938dd75be.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:520
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2024 -s 808
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:616

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/520-57-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/520-58-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/520-59-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/520-60-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/520-61-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/520-62-0x00000000004203FE-mapping.dmp
  • memory/520-63-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/520-65-0x0000000004CD0000-0x0000000004CD1000-memory.dmp
    Filesize

    4KB

  • memory/616-66-0x0000000000000000-mapping.dmp
  • memory/616-67-0x0000000000220000-0x0000000000221000-memory.dmp
    Filesize

    4KB

  • memory/2024-54-0x0000000000190000-0x0000000000191000-memory.dmp
    Filesize

    4KB

  • memory/2024-56-0x0000000004AA0000-0x0000000004AA1000-memory.dmp
    Filesize

    4KB