Overview

overview

10

Static

static

NESC536 PO.exe

windows7_x64

10

NESC536 PO.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    131s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 00:12

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General

  • Target

    NESC536 PO.exe

  • Size

    1.3MB

  • MD5

    18de4832a189eb76e0f940fc4556390f

  • SHA1

    594a74ed812a80837ba3560fd211625a9b49256d

  • SHA256

    0785384b7bf97e6d74ac22ce8a6ba6cd629d858dd778928f6a4eac974c35cf61

  • SHA512

    38d887e88ba72930aca85f647b6ccb8e702a9da9bcd58f58ffd69f517b7b2c9dcb4afaad9e1338806cd45c357d7b5905f910221e94902cfdca11f00734aa7bd7

Score
10/10
massloggercollectionransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\F95B724EDE\Log.txt

Family

masslogger

Ransom Note
<|| v2.2.0.0 ||> User Name: Admin IP: 154.61.71.50 Location: United States Windows OS: Microsoft Windows 10 Pro 64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 2:25:27 AM MassLogger Started: 5/21/2022 2:25:24 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\NESC536 PO.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> Disabled <|| USB Spread ||> 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.

    stealerspywaremasslogger
  • 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.

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 42 IoCs
    collection
  • 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NESC536 PO.exe
    "C:\Users\Admin\AppData\Local\Temp\NESC536 PO.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2468
    • C:\Users\Admin\AppData\Local\Temp\NESC536 PO.exe
      "{path}"
      2⤵
        PID:2252
      • C:\Users\Admin\AppData\Local\Temp\NESC536 PO.exe
        "{path}"
        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:4092

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    1
    T1082

    Lateral Movement

    Collection

    Data from Local System

    1
    T1005

    Email Collection

    1
    T1114

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\NESC536 PO.exe.log
      Filesize

      507B

      MD5

      8cf94b5356be60247d331660005941ec

      SHA1

      fdedb361f40f22cb6a086c808fc0056d4e421131

      SHA256

      52a5b2d36f2b72cb02c695cf7ef46444dda73d4ea82a73e0894c805fa9987bc0

      SHA512

      b886dfc8bf03f8627f051fb6e2ac40ae2e7713584695a365728eb2e2c87217830029aa35bd129c642fa03dde3f7a7dd5690b16248676be60a6bb5f497fb23651

      Download Submit
    • memory/2252-134-0x0000000000000000-mapping.dmp
      Download
    • memory/2468-130-0x0000000000F10000-0x000000000106A000-memory.dmp
      Filesize

      1.4MB

      Download
    • memory/2468-131-0x0000000006030000-0x00000000065D4000-memory.dmp
      Filesize

      5.6MB

      Download
    • memory/2468-132-0x0000000005CA0000-0x0000000005D32000-memory.dmp
      Filesize

      584KB

      Download
    • memory/2468-133-0x0000000005DE0000-0x0000000005E7C000-memory.dmp
      Filesize

      624KB

      Download
    • memory/4092-135-0x0000000000000000-mapping.dmp
      Download
    • memory/4092-136-0x0000000000400000-0x00000000004C4000-memory.dmp
      Filesize

      784KB

      Download
    • memory/4092-138-0x00000000054C0000-0x0000000005526000-memory.dmp
      Filesize

      408KB

      Download
    • memory/4092-139-0x0000000006EC0000-0x0000000006ECA000-memory.dmp
      Filesize

      40KB

      Download
    • memory/4092-140-0x0000000007380000-0x00000000073D0000-memory.dmp
      Filesize

      320KB

      Download