Analysis

  • max time kernel
    133s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/05/2023, 08:24

General

  • Target

    Recibo de transferencía.exe

  • Size

    513KB

  • MD5

    8acfcea0026a2d49f39db27fb7bd6efc

  • SHA1

    d8050f59f21df56233c8a8d60ae71e12041efb10

  • SHA256

    d82034c5d5633ff4f38939fd15a82c3612886742e8bedf4060fdb2129c09aacb

  • SHA512

    0b0f8dee37469700eea862abd0fb4eb6a0edc1935f4e67ddaa42397b23129341c4d3c64d645ee3417ab34863635acd0fb6ce7b5cb1c69545c02ca7fb077cb641

  • SSDEEP

    6144:Ykz9Cie9gbdpEUZ7eq+GzOTl12tXZv1cJmA5Wy9Eq9FkIo+oaf53kjs4YRISyA/Q:PRNnboGfNcz5Wy9B3eaWjs7isDxKpPp

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 1 IoCs
  • StormKitty

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

  • StormKitty payload 1 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 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Recibo de transferencía.exe
    "C:\Users\Admin\AppData\Local\Temp\Recibo de transferencía.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:408
    • C:\Users\Admin\AppData\Local\Temp\Recibo de transferencía.exe
      "C:\Users\Admin\AppData\Local\Temp\Recibo de transferencía.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3084

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Recibo de transferencía.exe.log

          Filesize

          1KB

          MD5

          b57b1ea0e9817bd8c90747e991b77447

          SHA1

          df63d993dd8b356c2aa8bdd5fed4ead467d0ef1f

          SHA256

          af13b787c47fa267cbca28ec758f254d5407c5a418fb86fff25ce5aec8b0f99c

          SHA512

          31e8ed3d1f8a3050b53e2b54ded1cde057ab76da28785347ba45a24535974207b14cb7f54f620f6e3a6e679705d7349005d7c29170d988c09c071c852cde621c

        • memory/408-133-0x0000000000B90000-0x0000000000C16000-memory.dmp

          Filesize

          536KB

        • memory/408-134-0x0000000005AE0000-0x0000000006084000-memory.dmp

          Filesize

          5.6MB

        • memory/408-135-0x00000000055D0000-0x0000000005662000-memory.dmp

          Filesize

          584KB

        • memory/408-136-0x0000000005870000-0x0000000005A16000-memory.dmp

          Filesize

          1.6MB

        • memory/408-137-0x00000000055C0000-0x00000000055CA000-memory.dmp

          Filesize

          40KB

        • memory/408-138-0x0000000005860000-0x0000000005870000-memory.dmp

          Filesize

          64KB

        • memory/408-139-0x0000000005860000-0x0000000005870000-memory.dmp

          Filesize

          64KB

        • memory/408-140-0x0000000008630000-0x00000000086CC000-memory.dmp

          Filesize

          624KB

        • memory/3084-141-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/3084-144-0x0000000005190000-0x00000000051A0000-memory.dmp

          Filesize

          64KB

        • memory/3084-145-0x0000000005190000-0x00000000051A0000-memory.dmp

          Filesize

          64KB