Analysis

  • max time kernel
    107s
  • max time network
    110s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 11:17

General

  • Target

    Prodcut_Inquiry.exe

  • Size

    1.0MB

  • MD5

    1078096ac7e4036ca968650d05018932

  • SHA1

    1f2d9456b50886ca36324f2b27ac47fc4be96d4d

  • SHA256

    2ae1f6270fabebb66f30578a678e13cb9dd688024fe73970ec2e243437141c30

  • SHA512

    bf503240767a26aca7dcb8c274581b529d75516a93df9fa7c108e2fd56f184d7842dc05b272fe874945d40035c7da8c7952d655064749601f8fb2777a0ae16fa

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\3B8E3C2477\Log.txt

Family

masslogger

Ransom Note
<|| v2.4.0.0 ||> User Name: Admin IP: 127.0.0.1 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 1:40:19 PM MassLogger Started: 5/21/2022 1:40:05 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Prodcut_Inquiry.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Window Searcher ||> Disabled <|| Downloader ||> 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 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 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.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Prodcut_Inquiry.exe
    "C:\Users\Admin\AppData\Local\Temp\Prodcut_Inquiry.exe"
    1⤵
    • Checks computer location settings
    • Accesses Microsoft Outlook profiles
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:1680
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LvBtcCIVWsT" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE744.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1280

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpE744.tmp

    Filesize

    1KB

    MD5

    3d0bfc4bffd763f05d6ecb531f201dce

    SHA1

    f7bd07da83d378ebcb08120b1dd524d5a96330be

    SHA256

    2539e0a9499bba3b4aac86e5138fe666b0ef32a32be3f0f464deb2361433e491

    SHA512

    193322559232dcd1b8b8ab35c632d8cfb84d4df7b5233b0122b72e4bac351c74f1f9e06183bbbd47b52d21ce4e634aecdd5112fc2ccdb3f8f1eecfa78a7d7077

  • memory/1280-59-0x0000000000000000-mapping.dmp

  • memory/1680-54-0x0000000000DD0000-0x0000000000EDA000-memory.dmp

    Filesize

    1.0MB

  • memory/1680-55-0x0000000000270000-0x000000000027A000-memory.dmp

    Filesize

    40KB

  • memory/1680-56-0x0000000005810000-0x00000000058C8000-memory.dmp

    Filesize

    736KB

  • memory/1680-57-0x0000000007EA0000-0x0000000007F58000-memory.dmp

    Filesize

    736KB

  • memory/1680-58-0x0000000076451000-0x0000000076453000-memory.dmp

    Filesize

    8KB

  • memory/1680-61-0x00000000059C0000-0x0000000005A78000-memory.dmp

    Filesize

    736KB

  • memory/1680-62-0x0000000004C30000-0x0000000004CA8000-memory.dmp

    Filesize

    480KB

  • memory/1680-63-0x00000000001F5000-0x0000000000206000-memory.dmp

    Filesize

    68KB