Overview

overview

10

Static

static

51091505f9...d3.exe

windows7_x64

10

51091505f9...d3.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    24-05-2022 22:40

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General

  • Target

    51091505f98b9c8b8732986911d36a901153d721d0e30bdaad8d8ce5b771c8d3.exe

  • Size

    1.4MB

  • MD5

    3338ab802e6b10e0b9400ba1aa16459f

  • SHA1

    708e0c78ca69ae2f3d52a24f1d88240b9351d413

  • SHA256

    51091505f98b9c8b8732986911d36a901153d721d0e30bdaad8d8ce5b771c8d3

  • SHA512

    3abad3c64f26245b5a50fb669088bd9f85cf2dda44d2c9727daddb33866d32d58f6d31e1f1f369dc167a2df0309e53c08869d9d7a67ecb7c0d39536a78ff2961

Score
10/10
massloggercollectionransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\8236ADF044\Log.txt

Family

masslogger

Ransom Note
<|| v2.1.0.0 ||> User Name: Admin IP: 127.0.0.1 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: 5/25/2022 12:48:45 AM MassLogger Started: 5/25/2022 12:48:22 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\51091505f98b9c8b8732986911d36a901153d721d0e30bdaad8d8ce5b771c8d3.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| USB Spread ||> 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 ||> Disabled

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    gsamuel@nationalportservices.cam
  • Password:
    71c7eb1f8baa88

Signatures

  • MassLogger

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

    stealerspywaremasslogger
  • MassLogger Main Payload 1 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • Checks computer location settings 2 TTPs 2 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 2 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.

    persistence
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 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\51091505f98b9c8b8732986911d36a901153d721d0e30bdaad8d8ce5b771c8d3.exe
    "C:\Users\Admin\AppData\Local\Temp\51091505f98b9c8b8732986911d36a901153d721d0e30bdaad8d8ce5b771c8d3.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2812
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SykZpiBPRpDQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD716.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1520
    • C:\Users\Admin\AppData\Local\Temp\51091505f98b9c8b8732986911d36a901153d721d0e30bdaad8d8ce5b771c8d3.exe
      "{path}"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1992

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
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\Temp\tmpD716.tmp
    Filesize

    1KB

    MD5

    a375df59c63639623d3bb137b7c789ef

    SHA1

    701e18ab47881c699e8173e988d885f50753c55f

    SHA256

    113cedea901f864f44e9f882fa59456bc33c8332c0d8d169509b5e721289d948

    SHA512

    6a0dba204219f21e9838e8077cd35632fbcc568ffe7eda58f3bcac05b62edda94a5947390e84888cf4f595315d3addbd2df3bd8287373235e8e7788e17b9e5e5

    Download Submit
  • memory/1520-135-0x0000000000000000-mapping.dmp
    Download
  • memory/1992-137-0x0000000000000000-mapping.dmp
    Download
  • memory/1992-138-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

    Download
  • memory/1992-139-0x0000000005830000-0x0000000005896000-memory.dmp
    Filesize

    408KB

    Download
  • memory/1992-140-0x0000000007250000-0x000000000725A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/1992-141-0x00000000072C0000-0x0000000007310000-memory.dmp
    Filesize

    320KB

    Download
  • memory/2812-130-0x0000000000060000-0x00000000001C4000-memory.dmp
    Filesize

    1.4MB

    Download
  • memory/2812-131-0x00000000051E0000-0x0000000005784000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/2812-132-0x0000000004C30000-0x0000000004CC2000-memory.dmp
    Filesize

    584KB

    Download
  • memory/2812-134-0x0000000004D70000-0x0000000004E0C000-memory.dmp
    Filesize

    624KB

    Download
  • memory/2812-133-0x0000000004B70000-0x0000000004B82000-memory.dmp
    Filesize

    72KB

    Download