Overview

overview

10

Static

static

49de80d921...8d.exe

windows7_x64

10

49de80d921...8d.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    171s
  • max time network
    159s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    16-05-2022 13:50

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe

  • Size

    821KB

  • MD5

    43971b982d0d0019c55f59c52254eee0

  • SHA1

    567a0266c45f2759a7eb95b392a2052ccc00c066

  • SHA256

    49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d

  • SHA512

    05ee55860bfde7b59d1f22695a12fcd4794dc5053cf76c598b11c20e2c2b9fc1fb1142c70488f94657f02e36ce38c2335274b778f3070eec7d3207448de23d59

Score
10/10
massloggercollectionransomwarerezer0spywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\3B8E3C2477\Log.txt

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.7.1 ################################################################# ### Logger Details ### 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: 5/16/2022 4:59:35 PM MassLogger Started: 5/16/2022 4:59:15 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.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 6 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • ReZer0 packer 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.

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 15 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 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\49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe
    "C:\Users\Admin\AppData\Local\Temp\49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1892
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\oPVKumm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEE08.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1776
    • C:\Users\Admin\AppData\Local\Temp\49de80d921b1b300f98b33bcd37b92e8b271e2d8dc8e27d6990d66aa21b5fb8d.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:1780

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

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpEE08.tmp
    Filesize

    1KB

    MD5

    23b7ff8adc00d10c308bdc5429fd7df6

    SHA1

    416478293c2281bb34ef5b9cc09043e01909eefb

    SHA256

    e03318d5b62f280eeff2635354345526c3bde80bb31f60fb881cec7e8df16373

    SHA512

    bf3d1285277d6f8496d04830e3f2655c70c2c861a37d84b10abf6be4ba54b77a6a621af6429f8ba951f6f27a9c67e94a9229ce5dcf5ab9ab212e980c674ca1d3

    Download Submit
  • memory/1776-58-0x0000000000000000-mapping.dmp
    Download
  • memory/1780-63-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/1780-64-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/1780-73-0x0000000004F05000-0x0000000004F16000-memory.dmp
    Filesize

    68KB

    Download
  • memory/1780-71-0x0000000000510000-0x0000000000554000-memory.dmp
    Filesize

    272KB

    Download
  • memory/1780-60-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/1780-61-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/1780-70-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/1780-68-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/1780-66-0x00000000004A302E-mapping.dmp
    Download
  • memory/1780-65-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/1892-57-0x0000000005EB0000-0x0000000005F60000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1892-54-0x0000000000870000-0x0000000000944000-memory.dmp
    Filesize

    848KB

    Download
  • memory/1892-55-0x0000000075801000-0x0000000075803000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1892-56-0x00000000004C0000-0x00000000004C8000-memory.dmp
    Filesize

    32KB

    Download