Analysis

  • max time kernel
    122s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    20-10-2021 19:46

General

  • Target

    SaLWleymqOiflYa.exe

  • Size

    314KB

  • MD5

    67151cfb27ae6f0c7fc0f314a1e3dd4d

  • SHA1

    a8fa4e3526d6662108c45eaf97a62c79ed91064f

  • SHA256

    d097d6061d833da65b18b777c9ecd637ac00370727b103169068aae445e71ed5

  • SHA512

    f4f4e7d08640eb15d66a75d26c0e168c99cfc45a7d889ee2a38021630eacfa008c942bc29f8198ad468b5ce786c73a9828031ae6f74631a9fcf04dbe4140085b

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.vivaldi.net
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    #munachimso#

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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.

  • 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.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SaLWleymqOiflYa.exe
    "C:\Users\Admin\AppData\Local\Temp\SaLWleymqOiflYa.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\skZvkAinN" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC2A3.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1256
    • C:\Users\Admin\AppData\Local\Temp\SaLWleymqOiflYa.exe
      "C:\Users\Admin\AppData\Local\Temp\SaLWleymqOiflYa.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:368

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/368-64-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/368-63-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/368-69-0x0000000000BB0000-0x0000000000BB1000-memory.dmp
    Filesize

    4KB

  • memory/368-67-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/368-66-0x000000000041F83E-mapping.dmp
  • memory/368-62-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/368-65-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/368-61-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/1256-60-0x0000000000000000-mapping.dmp
  • memory/1516-56-0x0000000076241000-0x0000000076243000-memory.dmp
    Filesize

    8KB

  • memory/1516-54-0x0000000001290000-0x0000000001291000-memory.dmp
    Filesize

    4KB

  • memory/1516-59-0x0000000001210000-0x0000000001250000-memory.dmp
    Filesize

    256KB

  • memory/1516-58-0x0000000000340000-0x0000000000347000-memory.dmp
    Filesize

    28KB

  • memory/1516-57-0x0000000004E40000-0x0000000004E41000-memory.dmp
    Filesize

    4KB