Analysis

  • max time kernel
    145s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 05:10

General

  • Target

    PRICE_LI.scr

  • Size

    1.1MB

  • MD5

    40da107fd60389b16f1c3a3f7a6d3f05

  • SHA1

    901b16191bf03068fe741be0c7af5592f34402bf

  • SHA256

    785b500d98d194c034b9c371eee464210f08aae5d83829c6262b713c3bb57a6e

  • SHA512

    49028e9d6cc1b08f2ac14db1e88c1d63edb53d0933c211a50befa98f8450cdc29c5f1b2b2d139faa835fadcddf5cfa266775d62f022a87333b776e3cb8fe8933

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\AEF946DCB4\Log.txt

Family

masslogger

Ransom Note
<|| v2.4.0.0 ||> User Name: Admin IP: 154.61.71.50 Location: United States Windows OS: Microsoft Windows 7 Ultimate 64bit Windows Serial Key: D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/20/2022 7:50:05 AM MassLogger Started: 5/20/2022 7:49:42 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\PRICE_LI.scr MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> Disabled <|| Window Searcher ||> Disabled <|| Bot Killer ||> Disabled <|| Search And Upload ||> Disabled <|| Telegram Desktop ||> Not Installed <|| Pidgin ||> Not Installed <|| FileZilla ||> Not Installed <|| Discord Tokken ||> Not Installed <|| NordVPN ||> Not Installed <|| Outlook ||> Not Installed <|| FoxMail ||> Not Installed <|| Thunderbird ||> Not Installed <|| FireFox ||> Not Found <|| QQ Browser ||> Not Installed <|| Chromium Recovery ||> Not Installed or Not Found <|| Keylogger And Clipboard ||> NA

Signatures

  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 35 IoCs
  • Looks up external IP address via web service 1 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: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PRICE_LI.scr
    "C:\Users\Admin\AppData\Local\Temp\PRICE_LI.scr" /S
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:316
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YdWDYSsCH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp75FB.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1208
    • C:\Users\Admin\AppData\Local\Temp\PRICE_LI.scr
      "C:\Users\Admin\AppData\Local\Temp\PRICE_LI.scr"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:564

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp75FB.tmp

    Filesize

    1KB

    MD5

    95cfe57a9b7d5798e7d033cec478af8c

    SHA1

    53ce8998cf336631d8697f15f41add5015976873

    SHA256

    934bc0e8659058e96fe349ea4a5c318a0ff032e813905092078a8bfa10083b08

    SHA512

    c750081524476c1cb62d2f3b4864c292664ca2c2965e01e5ff711245f7aefebd76de2ef88c12a6a78472555a8f881eb111e2244e6edef423fe190bcd56bf5116

  • memory/316-55-0x00000000769D1000-0x00000000769D3000-memory.dmp

    Filesize

    8KB

  • memory/316-56-0x0000000000590000-0x0000000000598000-memory.dmp

    Filesize

    32KB

  • memory/316-57-0x0000000005540000-0x0000000005624000-memory.dmp

    Filesize

    912KB

  • memory/316-58-0x0000000005620000-0x00000000056E8000-memory.dmp

    Filesize

    800KB

  • memory/316-54-0x00000000010F0000-0x000000000121A000-memory.dmp

    Filesize

    1.2MB

  • memory/564-62-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/564-61-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/564-64-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/564-65-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/564-66-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/564-67-0x00000000004B2C9E-mapping.dmp

  • memory/564-69-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/564-71-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/564-72-0x0000000000C50000-0x0000000000CC8000-memory.dmp

    Filesize

    480KB

  • memory/564-74-0x0000000004F75000-0x0000000004F86000-memory.dmp

    Filesize

    68KB

  • memory/1208-59-0x0000000000000000-mapping.dmp