Overview

overview

10

Static

static

#gfe00620.exe

windows7_x64

10

#gfe00620.exe

windows10_x64

3

Analysis

  • max time kernel
    141s
  • max time network
    93s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    29-06-2020 12:45

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General

  • Target

    #gfe00620.exe

  • Size

    1.1MB

  • MD5

    504fd653e392b36a4f829f583d8e5f29

  • SHA1

    a5b27394da0c8afffbc4dfa4a734db62917b9fae

  • SHA256

    abe23e12f4aa1f3e0b9ea3777ffaaf4fdcf9ccb21e7331b32d20bfa3a511f6c7

  • SHA512

    e4c030d4a8e1693cb04158e4df28c51f916b4814bb4494c418248b861230a5ac6c55a41fbef46f3e7a0749b3d863850a37b2a8b5349a83a92b15fe394cf212ab

Score
10/10
ransomwarestealerspywaremasslogger

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\C8A579F880\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: 6/29/2020 2:46:33 PM MassLogger Started: 6/29/2020 2:46:27 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\#gfe00620.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
  • 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 WriteProcessMemory 13 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • Suspicious behavior: AddClipboardFormatListener 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
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spyware
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\#gfe00620.exe
    "C:\Users\Admin\AppData\Local\Temp\#gfe00620.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    PID:240
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nYVUveDQlcJuye" /XML "C:\Users\Admin\AppData\Local\Temp\tmpECBE.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1892
    • C:\Users\Admin\AppData\Local\Temp\#gfe00620.exe
      "C:\Users\Admin\AppData\Local\Temp\#gfe00620.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of AdjustPrivilegeToken
      PID:1744

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

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\tmpECBE.tmp
    Download Submit
  • memory/240-1-0x0000000000000000-0x0000000000000000-disk.dmp
    Download
  • memory/1744-4-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/1744-5-0x00000000004A2FCE-mapping.dmp
    Download
  • memory/1744-6-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/1744-7-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/1892-2-0x0000000000000000-mapping.dmp
    Download