Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 23:52

General

  • Target

    URGENT ORDER SO 22-2020 WSO-20-03121.exe

  • Size

    1.6MB

  • MD5

    4ce1f0792e5ba318f161fa37ec60d5e3

  • SHA1

    37a5e03a365c50e759a1173386b0090199315527

  • SHA256

    ebcea3b90af00f67983ebb15abec7e46a480818904a74764aab402da08d7b16b

  • SHA512

    4828c14865fc9cc46da9ca83981376286a3fa109dd4ef32c86bc258267c65fac5b37cceecbf434912037af12f0aedb9cf24b6183fcd382e1a755e0e1632a7573

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\8506BBE7FF\Log.txt

Family

masslogger

Ransom Note
<|| v2.4.0.0 ||> User Name: Admin IP: 154.61.71.13 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 8:04:23 AM MassLogger Started: 5/21/2022 8:04:09 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\URGENT ORDER SO 22-2020 WSO-20-03121.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

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @Mexico1.,

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.

  • Suspicious use of SetThreadContext 1 IoCs
  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\URGENT ORDER SO 22-2020 WSO-20-03121.exe
    "C:\Users\Admin\AppData\Local\Temp\URGENT ORDER SO 22-2020 WSO-20-03121.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1260
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD2DA.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1040
    • C:\Users\Admin\AppData\Local\Temp\URGENT ORDER SO 22-2020 WSO-20-03121.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:332

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpD2DA.tmp

    Filesize

    1KB

    MD5

    d9b3fb55144055bf53049ae44e24a2b4

    SHA1

    e01d7cbee7c35cac28b467f84e92b7a48d32d61e

    SHA256

    7b950a718804352c3350d97782b2db4cd0e4fa78d1fded8b7f56edfa9df4a437

    SHA512

    001c56ee85bf76eb22969026c4ddd0f784052c37144642d8124b4fe0db1893bba55b2f5c4739a5a8cb54cdab5b1ea37ad830b34c429fdac0b8f93a4d5acc052c

  • memory/332-68-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/332-71-0x0000000004380000-0x00000000043F8000-memory.dmp

    Filesize

    480KB

  • memory/332-64-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/332-74-0x0000000000B80000-0x0000000000B94000-memory.dmp

    Filesize

    80KB

  • memory/332-65-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/332-60-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/332-61-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/332-73-0x0000000004E35000-0x0000000004E46000-memory.dmp

    Filesize

    68KB

  • memory/332-72-0x0000000075CE1000-0x0000000075CE3000-memory.dmp

    Filesize

    8KB

  • memory/332-63-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/332-70-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/1260-54-0x0000000000940000-0x0000000000AE0000-memory.dmp

    Filesize

    1.6MB

  • memory/1260-56-0x00000000005F0000-0x00000000006C4000-memory.dmp

    Filesize

    848KB

  • memory/1260-55-0x0000000000440000-0x0000000000448000-memory.dmp

    Filesize

    32KB

  • memory/1260-57-0x0000000007930000-0x00000000079FC000-memory.dmp

    Filesize

    816KB