Overview

overview

10

Static

static

Payment A...DF.exe

windows7_x64

10

Payment A...DF.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    60s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 11:55

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General

  • Target

    Payment AF 6252020_PDF.exe

  • Size

    901KB

  • MD5

    462d64b8cccac090d2d32c835ce36f32

  • SHA1

    54b3ecf7515d602cf00ad219594e071bb874cc92

  • SHA256

    be5e5be8981ef261f24b21b1d6b67f5041d10ecc3eb3697a67142d43e71c7ece

  • SHA512

    cf53f6df2b445b1eb0b3b0309a5b5cd1a37f5e90135a161cbeb80eb662b6d95104d9083e62c4145203277b4fcfe45607fc07a7f80bc4fdced6c44f10cb751c43

Score
10/10
massloggercollectionransomwarerezer0spywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\79FE0CC911\Log.txt

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.7.1 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 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: 5/21/2022 12:02:41 PM MassLogger Started: 5/21/2022 12:02:30 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Payment AF 6252020_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 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
  • 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 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment AF 6252020_PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment AF 6252020_PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1564
    • C:\Users\Admin\AppData\Local\Temp\Payment AF 6252020_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:2024

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

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/1564-54-0x0000000000D20000-0x0000000000E08000-memory.dmp
    Filesize

    928KB

    Download
  • memory/1564-55-0x0000000075CD1000-0x0000000075CD3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1564-56-0x0000000000310000-0x0000000000320000-memory.dmp
    Filesize

    64KB

    Download
  • memory/1564-57-0x0000000005290000-0x000000000533E000-memory.dmp
    Filesize

    696KB

    Download
  • memory/2024-58-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/2024-59-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/2024-61-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/2024-62-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/2024-63-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/2024-66-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/2024-64-0x00000000004A2E6E-mapping.dmp
    Download
  • memory/2024-68-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/2024-69-0x00000000004C0000-0x0000000000504000-memory.dmp
    Filesize

    272KB

    Download
  • memory/2024-71-0x0000000004E25000-0x0000000004E36000-memory.dmp
    Filesize

    68KB

    Download