Overview

overview

10

Static

static

PO 202108 ...21.exe

windows7_x64

10

PO 202108 ...21.exe

windows10_x64

10

Analysis

  • max time kernel
    123s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    31-12-2020 07:51

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General

  • Target

    PO 202108 FOR JANUARY 2021.exe

  • Size

    1.5MB

  • MD5

    d6fedf690e4ea4ba0918f9deddeb9b7a

  • SHA1

    abb8d5664b096b6caa92993ffb75c3460f6cc7a0

  • SHA256

    828a9fae03e6a20158c58a659f27371fbe9a836199a3327fe5ef457115cf0206

  • SHA512

    5b3c0d624c76a5badb81c4fcb23137cee89736d4212016337a63f953a85ba033970e9f540cb63cf12bd876e0dfcfbed6a3a5817a734e8f53863d87baf0dec0cc

Score
10/10
massloggerransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\5FADD7138A\Log.txt

Family

masslogger

Ransom Note
<|| v2.4.0.0 ||> User Name: Admin IP: 154.61.71.51 Location: United States Windows OS: Microsoft Windows 7 Ultimate 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: 12/31/2020 7:48:39 AM MassLogger Started: 12/31/2020 7:48:35 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\PO 202108 FOR JANUARY 2021.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> Disabled <|| Bot Killer ||> Disabled <|| Window Searcher ||> 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

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.

  • 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
  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO 202108 FOR JANUARY 2021.exe
    "C:\Users\Admin\AppData\Local\Temp\PO 202108 FOR JANUARY 2021.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:792
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NGgqNkUr" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE7A1.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:280
    • C:\Users\Admin\AppData\Local\Temp\PO 202108 FOR JANUARY 2021.exe
      "C:\Users\Admin\AppData\Local\Temp\PO 202108 FOR JANUARY 2021.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1472

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

1
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpE7A1.tmp
    MD5

    3b5135f322ed389de1d6926d9a97cb4a

    SHA1

    912d8fa4f3f8d1fe2c3248a143444e255286f114

    SHA256

    f7a8cb25f1b56a46889475de75a7fa1dac38210cc5d3ff920efc618fa8e28c7f

    SHA512

    9c04fc7e6da45a069c3fde775945fa7cfe56352364c1e1f602a01a91992960ef1521120351779d58f88e7545f68191a595f94ba904d37f2e0a212c4b2f033a77

    Download Submit
  • memory/280-8-0x0000000000000000-mapping.dmp
    Download
  • memory/792-6-0x00000000056C0000-0x00000000057CB000-memory.dmp
    Filesize

    1.0MB

    Download
  • memory/792-2-0x00000000747A0000-0x0000000074E8E000-memory.dmp
    Filesize

    6.9MB

    Download
  • memory/792-7-0x00000000057D0000-0x00000000058BA000-memory.dmp
    Filesize

    936KB

    Download
  • memory/792-5-0x0000000000340000-0x0000000000346000-memory.dmp
    Filesize

    24KB

    Download
  • memory/792-3-0x0000000000830000-0x0000000000831000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1472-10-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

    Download
  • memory/1472-11-0x00000000004B32CE-mapping.dmp
    Download
  • memory/1472-12-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

    Download
  • memory/1472-13-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

    Download
  • memory/1472-14-0x00000000747A0000-0x0000000074E8E000-memory.dmp
    Filesize

    6.9MB

    Download
  • memory/1472-17-0x00000000009C0000-0x0000000000A31000-memory.dmp
    Filesize

    452KB

    Download