Overview

overview

10

Static

static

51091505f9...d3.exe

windows7_x64

10

51091505f9...d3.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    113s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20220414-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\3B8E3C2477\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 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: 5/25/2022 12:48:34 AM MassLogger Started: 5/25/2022 12:48:18 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 <|| 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 ||> 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 6 IoCs
  • 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 35 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
  • 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 13 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⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:888
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SykZpiBPRpDQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3757.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:836
    • 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:1500

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\tmp3757.tmp
    Filesize

    1KB

    MD5

    4b8c480f7d54fd51883f318aae3f2981

    SHA1

    ad1df92a9352f52059f53d87f4a8746146987350

    SHA256

    81499a47eaf94363ba12c4cc3cb0200dafe16878a518396d37aa5f0093ad137f

    SHA512

    0e41036639d8ee79948e3805236b6797e377bf8447466b35ba738d53d242b20f7c284d41d163b34ba46268c4d04109b830f45685cdeb3a35a40ae8b8b46d07d1

    Download Submit
  • memory/836-57-0x0000000000000000-mapping.dmp
    Download
  • memory/888-54-0x0000000000870000-0x00000000009D4000-memory.dmp
    Filesize

    1.4MB

    Download
  • memory/888-55-0x0000000000440000-0x000000000044A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/888-56-0x00000000051F0000-0x0000000005292000-memory.dmp
    Filesize

    648KB

    Download
  • memory/1500-69-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

    Download
  • memory/1500-63-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

    Download
  • memory/1500-67-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

    Download
  • memory/1500-60-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

    Download
  • memory/1500-65-0x00000000004945DE-mapping.dmp
    Download
  • memory/1500-64-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

    Download
  • memory/1500-62-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

    Download
  • memory/1500-59-0x0000000000400000-0x000000000049A000-memory.dmp
    Filesize

    616KB

    Download
  • memory/1500-70-0x00000000003B0000-0x00000000003F4000-memory.dmp
    Filesize

    272KB

    Download
  • memory/1500-71-0x0000000075D21000-0x0000000075D23000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1500-72-0x0000000004E35000-0x0000000004E46000-memory.dmp
    Filesize

    68KB

    Download
  • memory/1500-73-0x00000000007D0000-0x00000000007E4000-memory.dmp
    Filesize

    80KB

    Download