Analysis

  • max time kernel
    149s
  • max time network
    160s
  • platform
    windows7_x64
  • resource
    win7-20220414-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\AEF946DCB4\Log.txt

Family

masslogger

Ransom Note
<|| v2.1.0.0 ||> User Name: Admin IP: 154.61.71.50 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: 5/24/2022 11:33:33 PM MassLogger Started: 5/24/2022 11:33:13 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 <|| USB Spread ||> Disabled <|| Downloader ||> 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
  • Loads dropped DLL 2 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 35 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 18 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:1864
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      • Loads dropped DLL
      • NTFS ADS
      • Suspicious use of WriteProcessMemory
      PID:1296
      • 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:1812
  • C:\Users\Admin\AppData\Roaming\appdata\hshshbe.exe
    "C:\Users\Admin\AppData\Roaming\appdata\hshshbe.exe" 2 1284 7105705
    1⤵
    • Executes dropped EXE
    • Suspicious behavior: EnumeratesProcesses
    PID:2028
  • 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 behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • outlook_office_path
    • outlook_win_path
    PID:1284

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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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

  • \Users\Admin\AppData\Roaming\appdata\hshshbe.exe

    Filesize

    900KB

    MD5

    b720141599d9a092ef93bd69ba3d6e3d

    SHA1

    4718853ced0c3010ad7f8c60155b6b32cee5aa44

    SHA256

    74aa9c168ed4ff298ce0d2737342decc9a4ffaf3c03e32965a88e9f6b0ed0144

    SHA512

    e0c6854b51746019e337ce9f23248c4e973f75b7e521348bfd80a545c21d9ffbd5f40e7c368f875625c2c3452c5800bb1146daa9316d4a5159570794ccc4203f

  • \Users\Admin\AppData\Roaming\appdata\hshshbe.exe

    Filesize

    900KB

    MD5

    b720141599d9a092ef93bd69ba3d6e3d

    SHA1

    4718853ced0c3010ad7f8c60155b6b32cee5aa44

    SHA256

    74aa9c168ed4ff298ce0d2737342decc9a4ffaf3c03e32965a88e9f6b0ed0144

    SHA512

    e0c6854b51746019e337ce9f23248c4e973f75b7e521348bfd80a545c21d9ffbd5f40e7c368f875625c2c3452c5800bb1146daa9316d4a5159570794ccc4203f

  • memory/1284-68-0x0000000001EA0000-0x0000000001F3A000-memory.dmp

    Filesize

    616KB

  • memory/1284-67-0x0000000001EA0000-0x0000000001F3A000-memory.dmp

    Filesize

    616KB

  • memory/1284-64-0x000000000053F860-mapping.dmp

  • memory/1284-74-0x0000000002560000-0x00000000025A4000-memory.dmp

    Filesize

    272KB

  • memory/1284-75-0x0000000004BC5000-0x0000000004BD6000-memory.dmp

    Filesize

    68KB

  • memory/1284-76-0x0000000006060000-0x0000000006074000-memory.dmp

    Filesize

    80KB

  • memory/1296-55-0x0000000000000000-mapping.dmp

  • memory/1812-60-0x0000000000000000-mapping.dmp

  • memory/1812-70-0x0000000000400000-0x00000000004E7000-memory.dmp

    Filesize

    924KB

  • memory/1864-54-0x0000000075A61000-0x0000000075A63000-memory.dmp

    Filesize

    8KB

  • memory/1864-57-0x0000000000400000-0x00000000004E7000-memory.dmp

    Filesize

    924KB

  • memory/2028-73-0x0000000000400000-0x00000000004E7000-memory.dmp

    Filesize

    924KB

  • memory/2028-66-0x0000000000000000-mapping.dmp