Overview

overview

10

Static

static

PO NO. 369273.exe

windows7_x64

10

PO NO. 369273.exe

windows10_x64

10

Analysis

  • max time kernel
    58s
  • max time network
    57s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09-11-2020 20:59

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General

  • Target

    PO NO. 369273.exe

  • Size

    847KB

  • MD5

    22ac585c773cef9b561008a2ee7e5ae1

  • SHA1

    307784c15ffd676c41fbe8ba8c7974e14b2a3210

  • SHA256

    1d36a49464b06e161a182dfe3b2631fac5c76556d61d401e385c235fd124f4a1

  • SHA512

    7ecd0ed67c6c1706645de88fcfdeac724e441c9a292089b9b98907478cd5f8682ccb3d6f57c5976b54918246c5aef57f7e82e19b8011be37ef5cc6aaaebe9aa2

Score
10/10
massloggerransomwarerezer0spywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\60F5850B53\Log.txt

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.7.1 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.13 Location: United States Windows OS: Microsoft Windows 7 Professional 64bit Windows Serial Key: HYF8J-CVRMY-CM74G-RPHKF-PW487 CPU: Persocon Processor 2.5+ GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 11/11/2020 5:47:44 AM MassLogger Started: 11/11/2020 5:47:39 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\PO NO. 369273.exe MassLogger Melt: false MassLogger Exit after delivery: true As Administrator: True Processes:

Signatures

  • MassLogger

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

    stealerspywaremasslogger
  • MassLogger Main Payload 4 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • rezer0 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

    rezer0
  • 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.

    spyware
  • 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: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO NO. 369273.exe
    "C:\Users\Admin\AppData\Local\Temp\PO NO. 369273.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:748
    • C:\Users\Admin\AppData\Local\Temp\PO NO. 369273.exe
      "{path}"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1132

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

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/748-0-0x0000000074580000-0x0000000074C6E000-memory.dmp
    Filesize

    6.9MB

    Download
  • memory/748-1-0x00000000013A0000-0x00000000013A1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/748-3-0x0000000000370000-0x000000000037F000-memory.dmp
    Filesize

    60KB

    Download
  • memory/748-4-0x0000000000B10000-0x0000000000BB9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1132-5-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/1132-6-0x00000000004A2D1E-mapping.dmp
    Download
  • memory/1132-7-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/1132-8-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/1132-9-0x0000000074500000-0x0000000074BEE000-memory.dmp
    Filesize

    6.9MB

    Download
  • memory/1132-12-0x0000000000AE0000-0x0000000000B1E000-memory.dmp
    Filesize

    248KB

    Download