Analysis

  • max time kernel
    82s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    08/05/2023, 08:24

General

  • Target

    Comprovativo de Transferência.exe

  • Size

    514KB

  • MD5

    cac8563e5e1813454b699556d41721c9

  • SHA1

    e76013e8e94ac9acc11ea23dbd3ff997fe797197

  • SHA256

    2535b5bde8fbe58fcddfbf7acf196a1290159e707c87929a1ae94bc7970e1c5c

  • SHA512

    76d7f7332dbc5979ab852ae69cdfc42493bf227f825253e6db2c39b73e64199a10c8ac4ef48edef33aae6628f531aee60cde8f49d61eb677e727a273672d6cb5

  • SSDEEP

    6144:8LHy9CiejeHdPvqIAcfHqes4/UfmDHoQHP7cUGZYmwZTln6Algv6+w8WVz5fH4Xj:CoCEpvlqex/Uaw9MZ96nW1tYXrnis

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.libreriamarpe.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    f9mU@96n

Extracted

Family

snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 7 IoCs
  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 6 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 3 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
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Comprovativo de Transferência.exe
    "C:\Users\Admin\AppData\Local\Temp\Comprovativo de Transferência.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Users\Admin\AppData\Local\Temp\Comprovativo de Transferência.exe
      "C:\Users\Admin\AppData\Local\Temp\Comprovativo de Transferência.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1184

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1184-66-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/1184-68-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/1184-72-0x0000000004410000-0x0000000004450000-memory.dmp

          Filesize

          256KB

        • memory/1184-71-0x0000000004410000-0x0000000004450000-memory.dmp

          Filesize

          256KB

        • memory/1184-70-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/1184-64-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/1184-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/1184-61-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/1184-62-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/1184-63-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/2044-55-0x0000000000B60000-0x0000000000BA0000-memory.dmp

          Filesize

          256KB

        • memory/2044-60-0x0000000004040000-0x0000000004068000-memory.dmp

          Filesize

          160KB

        • memory/2044-54-0x0000000000BB0000-0x0000000000C36000-memory.dmp

          Filesize

          536KB

        • memory/2044-59-0x0000000005BE0000-0x0000000005C42000-memory.dmp

          Filesize

          392KB

        • memory/2044-58-0x0000000000710000-0x000000000071A000-memory.dmp

          Filesize

          40KB

        • memory/2044-57-0x0000000000B60000-0x0000000000BA0000-memory.dmp

          Filesize

          256KB

        • memory/2044-56-0x00000000006F0000-0x00000000006FC000-memory.dmp

          Filesize

          48KB