Analysis

  • max time kernel
    92s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    24-05-2022 21:31

General

  • Target

    74aa9c168ed4ff298ce0d2737342decc9a4ffaf3c03e32965a88e9f6b0ed0144.exe

  • Size

    900KB

  • MD5

    b720141599d9a092ef93bd69ba3d6e3d

  • SHA1

    4718853ced0c3010ad7f8c60155b6b32cee5aa44

  • SHA256

    74aa9c168ed4ff298ce0d2737342decc9a4ffaf3c03e32965a88e9f6b0ed0144

  • SHA512

    e0c6854b51746019e337ce9f23248c4e973f75b7e521348bfd80a545c21d9ffbd5f40e7c368f875625c2c3452c5800bb1146daa9316d4a5159570794ccc4203f

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\F95B724EDE\Log.txt

Family

masslogger

Ransom Note
<|| v2.1.0.0 ||> User Name: Admin IP: 127.0.0.1 Location: United States Windows OS: Microsoft Windows 10 Pro 64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/24/2022 11:33:15 PM MassLogger Started: 5/24/2022 11:32:57 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Roaming\appdata\hshshbe.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> Disabled <|| USB Spread ||> Disabled <|| Window Searcher ||> Disabled <|| Bot Killer ||> 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 ||> NA

Signatures

  • MassLogger

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

  • MassLogger Main Payload 2 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 1 IoCs
  • 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 42 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
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\74aa9c168ed4ff298ce0d2737342decc9a4ffaf3c03e32965a88e9f6b0ed0144.exe
    "C:\Users\Admin\AppData\Local\Temp\74aa9c168ed4ff298ce0d2737342decc9a4ffaf3c03e32965a88e9f6b0ed0144.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3744
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      • NTFS ADS
      • Suspicious use of WriteProcessMemory
      PID:3888
      • C:\Users\Admin\AppData\Roaming\appdata\hshshbe.exe
        "C:\Users\Admin\AppData\Roaming\appdata\hshshbe.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:4188
  • C:\Users\Admin\AppData\Roaming\appdata\hshshbe.exe
    "C:\Users\Admin\AppData\Roaming\appdata\hshshbe.exe"
    1⤵
    • Executes dropped EXE
    • Checks computer location settings
    • Accesses Microsoft Outlook profiles
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • outlook_office_path
    • outlook_win_path
    PID:4220
  • C:\Users\Admin\AppData\Roaming\appdata\hshshbe.exe
    "C:\Users\Admin\AppData\Roaming\appdata\hshshbe.exe" 2 4220 240571609
    1⤵
    • Executes dropped EXE
    • Suspicious behavior: EnumeratesProcesses
    PID:4300

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\Roaming\appdata\hshshbe.exe
    Filesize

    900KB

    MD5

    b720141599d9a092ef93bd69ba3d6e3d

    SHA1

    4718853ced0c3010ad7f8c60155b6b32cee5aa44

    SHA256

    74aa9c168ed4ff298ce0d2737342decc9a4ffaf3c03e32965a88e9f6b0ed0144

    SHA512

    e0c6854b51746019e337ce9f23248c4e973f75b7e521348bfd80a545c21d9ffbd5f40e7c368f875625c2c3452c5800bb1146daa9316d4a5159570794ccc4203f

  • C:\Users\Admin\AppData\Roaming\appdata\hshshbe.exe
    Filesize

    900KB

    MD5

    b720141599d9a092ef93bd69ba3d6e3d

    SHA1

    4718853ced0c3010ad7f8c60155b6b32cee5aa44

    SHA256

    74aa9c168ed4ff298ce0d2737342decc9a4ffaf3c03e32965a88e9f6b0ed0144

    SHA512

    e0c6854b51746019e337ce9f23248c4e973f75b7e521348bfd80a545c21d9ffbd5f40e7c368f875625c2c3452c5800bb1146daa9316d4a5159570794ccc4203f

  • C:\Users\Admin\AppData\Roaming\appdata\hshshbe.exe
    Filesize

    900KB

    MD5

    b720141599d9a092ef93bd69ba3d6e3d

    SHA1

    4718853ced0c3010ad7f8c60155b6b32cee5aa44

    SHA256

    74aa9c168ed4ff298ce0d2737342decc9a4ffaf3c03e32965a88e9f6b0ed0144

    SHA512

    e0c6854b51746019e337ce9f23248c4e973f75b7e521348bfd80a545c21d9ffbd5f40e7c368f875625c2c3452c5800bb1146daa9316d4a5159570794ccc4203f

  • C:\Users\Admin\AppData\Roaming\appdata\hshshbe.exe
    Filesize

    900KB

    MD5

    b720141599d9a092ef93bd69ba3d6e3d

    SHA1

    4718853ced0c3010ad7f8c60155b6b32cee5aa44

    SHA256

    74aa9c168ed4ff298ce0d2737342decc9a4ffaf3c03e32965a88e9f6b0ed0144

    SHA512

    e0c6854b51746019e337ce9f23248c4e973f75b7e521348bfd80a545c21d9ffbd5f40e7c368f875625c2c3452c5800bb1146daa9316d4a5159570794ccc4203f

  • memory/3744-131-0x0000000000400000-0x00000000004E7000-memory.dmp
    Filesize

    924KB

  • memory/3888-130-0x0000000000000000-mapping.dmp
  • memory/4188-141-0x0000000000400000-0x00000000004E7000-memory.dmp
    Filesize

    924KB

  • memory/4188-132-0x0000000000000000-mapping.dmp
  • memory/4220-140-0x0000000000C20000-0x0000000000CBA000-memory.dmp
    Filesize

    616KB

  • memory/4220-139-0x0000000000C20000-0x0000000000CBA000-memory.dmp
    Filesize

    616KB

  • memory/4220-135-0x0000000000000000-mapping.dmp
  • memory/4220-143-0x0000000005120000-0x00000000051BC000-memory.dmp
    Filesize

    624KB

  • memory/4220-142-0x0000000004B70000-0x0000000005114000-memory.dmp
    Filesize

    5.6MB

  • memory/4220-145-0x0000000005240000-0x00000000052A6000-memory.dmp
    Filesize

    408KB

  • memory/4220-146-0x0000000005610000-0x00000000056A2000-memory.dmp
    Filesize

    584KB

  • memory/4220-147-0x0000000006C70000-0x0000000006C7A000-memory.dmp
    Filesize

    40KB

  • memory/4220-148-0x0000000007E80000-0x0000000007ED0000-memory.dmp
    Filesize

    320KB

  • memory/4300-137-0x0000000000000000-mapping.dmp
  • memory/4300-144-0x0000000000400000-0x00000000004E7000-memory.dmp
    Filesize

    924KB