Overview

overview

10

Static

static

Purchase O...df.exe

windows7_x64

10

Purchase O...df.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    168s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 11:22

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General

  • Target

    Purchase Order_pdf.exe

  • Size

    863KB

  • MD5

    46f6a9c3798b0a265c883914b575f582

  • SHA1

    ee1ef2e31b27385fe7c419051764c3b7c1872c78

  • SHA256

    7c8962ad0cf0487df0793c34b8bba9b9fbb83e88287afa9761083e3d7b4eda36

  • SHA512

    50a645aaeb3cb5582f12a2f917d939602dc20e3a2020af19b13d1253325f8df45072fd9b184c64870b1a42a8ecbcc8ee6b09ed01b489912e5635d899ad1ee21a

Score
10/10
massloggercollectionransomwarespywarestealer

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.7.1 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 Location: United States Windows OS: Microsoft Windows 10 Pro64bit 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 1:43:55 PM MassLogger Started: 5/21/2022 1:43:51 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Purchase Order_pdf.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

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 18 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: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 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\Purchase Order_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order_pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LCdHbEA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4D9E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3908
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order_pdf.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:360

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\tmp4D9E.tmp
    Filesize

    1KB

    MD5

    af1c765462d92d26fa7922f175b523c5

    SHA1

    366766936b9c9280a0611a565c9b7bff7231fadb

    SHA256

    c9fc3469264cef0e02823cc831d6359e82ce1120fd0612042d89833154d5f3d6

    SHA512

    c34cf1a6578829db406c5ff2655ace76cc8c87baab5cc90d4e65355eefb287bdec815ee8d9bc4f52f0f8291591c0d5accc31127938093a2b2b45e32903f3deed

    Download Submit
  • memory/360-136-0x0000000000000000-mapping.dmp
    Download
  • memory/360-137-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/360-138-0x0000000005430000-0x0000000005496000-memory.dmp
    Filesize

    408KB

    Download
  • memory/360-139-0x0000000006F90000-0x0000000006F9A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/360-140-0x0000000008210000-0x0000000008260000-memory.dmp
    Filesize

    320KB

    Download
  • memory/1732-130-0x0000000000F10000-0x0000000000FEE000-memory.dmp
    Filesize

    888KB

    Download
  • memory/1732-131-0x00000000059A0000-0x0000000005A32000-memory.dmp
    Filesize

    584KB

    Download
  • memory/1732-132-0x0000000005A90000-0x0000000005B2C000-memory.dmp
    Filesize

    624KB

    Download
  • memory/1732-133-0x0000000007A40000-0x0000000007FE4000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/3908-134-0x0000000000000000-mapping.dmp
    Download