Analysis

  • max time kernel
    90s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 11:47

General

  • Target

    Swift reciept.exe

  • Size

    901KB

  • MD5

    4fe2e4cc5e54c6c32f3f054d3e3104fb

  • SHA1

    a8b013414f0cf356019cacbc9250e686860d2ec1

  • SHA256

    873d9e2252783bc8e2e14a30b8f85f3034a8fbf6ade7aaa24a8173fb85dd092c

  • SHA512

    6bc1a865e8868fed7f489f233f6d3d7fdf7fbc220ea9fd3a73143428fc9bcc29e62a72792e9b6264b953e5fad0c6f824afd287897efdcd7e685c6faf21390c0b

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\0F48153F20\Log.txt

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.3.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States OS: Microsoft Windows 10 Pro64bit CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 11:54:36 AM MassLogger Started: 5/21/2022 11:54:32 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Swift reciept.exe As Administrator: True

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    m4cfund@yandex.com
  • Password:
    Dmacdavid

Signatures

  • MassLogger

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 18 IoCs
  • 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 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Swift reciept.exe
    "C:\Users\Admin\AppData\Local\Temp\Swift reciept.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4156
    • C:\Users\Admin\AppData\Local\Temp\Swift reciept.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:1972

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Swift reciept.exe.log
    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/1972-163-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-193-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-643-0x0000000008550000-0x00000000085A0000-memory.dmp
    Filesize

    320KB

  • memory/1972-642-0x00000000067D0000-0x0000000006836000-memory.dmp
    Filesize

    408KB

  • memory/1972-135-0x0000000000000000-mapping.dmp
  • memory/1972-136-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-161-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-139-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-141-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-143-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-145-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-147-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-149-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-151-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-153-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-155-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-157-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-165-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-199-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-197-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-159-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-167-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-169-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-171-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-173-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-175-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-177-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-179-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-181-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-183-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-185-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-187-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-189-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-191-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1972-195-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/4156-130-0x0000000000B60000-0x0000000000C48000-memory.dmp
    Filesize

    928KB

  • memory/4156-132-0x0000000005570000-0x0000000005602000-memory.dmp
    Filesize

    584KB

  • memory/4156-131-0x0000000005A80000-0x0000000006024000-memory.dmp
    Filesize

    5.6MB

  • memory/4156-134-0x0000000009350000-0x00000000093EC000-memory.dmp
    Filesize

    624KB

  • memory/4156-133-0x00000000054A0000-0x00000000054AA000-memory.dmp
    Filesize

    40KB