Analysis

  • max time kernel
    151s
  • max time network
    175s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 03:28

General

  • Target

    00068dc51db13086db2a9fc776a55a946c699f1a225ee6595ae6b91ea469356c.exe

  • Size

    981KB

  • MD5

    96de546b32289587f7db830e1e385a26

  • SHA1

    60f2925dc7ebdb8aa4c844edcaa3b0b5c6b4954b

  • SHA256

    00068dc51db13086db2a9fc776a55a946c699f1a225ee6595ae6b91ea469356c

  • SHA512

    f26fe0d399a4b428a80a828c29e63145c7eb406200829fa473ae40e77c055f45071d4cacb02c8a59c87969ecb0dc3f7a7e97387bc0ecf34d080ede36b18951fd

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.6.0 ################################################################# ### Logger Details ### 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: 5/21/2022 7:11:00 AM MassLogger Started: 5/21/2022 7:10:49 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\00068dc51db13086db2a9fc776a55a946c699f1a225ee6595ae6b91ea469356c.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    cruizjamesvhjkl@

Signatures

  • MassLogger

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

  • MassLogger Main Payload 33 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • ReZer0 packer 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

  • 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 15 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: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\00068dc51db13086db2a9fc776a55a946c699f1a225ee6595ae6b91ea469356c.exe
    "C:\Users\Admin\AppData\Local\Temp\00068dc51db13086db2a9fc776a55a946c699f1a225ee6595ae6b91ea469356c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1312
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hffwylP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD1D1.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1788
    • C:\Users\Admin\AppData\Local\Temp\00068dc51db13086db2a9fc776a55a946c699f1a225ee6595ae6b91ea469356c.exe
      "{path}"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:696

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpD1D1.tmp

    Filesize

    1KB

    MD5

    12105f8229d31fdf724e48a80ab8254a

    SHA1

    f288bf2351189b468f046c11bdf9c5d6f0e641b4

    SHA256

    b0ceacfa6c56abf7e73f7560e4af6d8df2cc865a7098a375205187d3ea6e279e

    SHA512

    d4b34640b1e08a561403d094ec5cc87c4b0dbe9a3497590009fcb3dfd75a924b9a504b3a59a817996f8afe2844d3e35a6d2ea059a88de538729cf3e816f59d30

  • memory/696-88-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-108-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-590-0x0000000002310000-0x0000000002324000-memory.dmp

    Filesize

    80KB

  • memory/696-86-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-587-0x0000000000710000-0x0000000000754000-memory.dmp

    Filesize

    272KB

  • memory/696-60-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-61-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-63-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-64-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-65-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-66-0x00000000004AC9AE-mapping.dmp

  • memory/696-68-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-70-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-72-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-74-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-90-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-78-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-80-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-82-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-84-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-589-0x0000000004C45000-0x0000000004C56000-memory.dmp

    Filesize

    68KB

  • memory/696-124-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-76-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-92-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-94-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-96-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-98-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-100-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-102-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-104-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-106-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-122-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-110-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-112-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-114-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-116-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-118-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/696-120-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1312-56-0x0000000000490000-0x00000000004A4000-memory.dmp

    Filesize

    80KB

  • memory/1312-55-0x0000000005DF0000-0x0000000005ECC000-memory.dmp

    Filesize

    880KB

  • memory/1312-54-0x00000000008E0000-0x00000000009DE000-memory.dmp

    Filesize

    1016KB

  • memory/1312-57-0x00000000060E0000-0x0000000006198000-memory.dmp

    Filesize

    736KB

  • memory/1788-58-0x0000000000000000-mapping.dmp