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Analysis

  • max time kernel
    119s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20/01/2025, 15:52

General

  • Target

    LETTER OF AUTHORIZATION.exe

  • Size

    1.2MB

  • MD5

    c787d6c746ed6c0d08e0d7ce05012b56

  • SHA1

    614d8f36a2016bfa67472876383f9ab2ae55fe48

  • SHA256

    6ed8984ec6982853a97d73d735054cb897d4acea75e284b9a5493086917206e7

  • SHA512

    de60d9babe7bf3b7f0e729bb02ac7a7536b7b17b7ca869a34c07571535fa551e10a20f43de79f563cdb84c32ff3119e2c258157e133924c74f27c284cf3dc2a1

  • SSDEEP

    24576:7Sexfdr7yJ96EbKNxpXq7TYA2rQtlHPI4Q:mNIEbKzVQB

Malware Config

Extracted

Family

snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 5 IoCs
  • Snakekeylogger family
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 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 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\LETTER OF AUTHORIZATION.exe
    "C:\Users\Admin\AppData\Local\Temp\LETTER OF AUTHORIZATION.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2176
    • C:\Users\Admin\AppData\Local\Temp\LETTER OF AUTHORIZATION.exe
      "C:\Users\Admin\AppData\Local\Temp\LETTER OF AUTHORIZATION.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3036

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2176-0-0x000000007478E000-0x000000007478F000-memory.dmp

    Filesize

    4KB

  • memory/2176-1-0x0000000000FD0000-0x000000000110A000-memory.dmp

    Filesize

    1.2MB

  • memory/2176-2-0x0000000000A80000-0x0000000000AD4000-memory.dmp

    Filesize

    336KB

  • memory/2176-3-0x0000000074780000-0x0000000074E6E000-memory.dmp

    Filesize

    6.9MB

  • memory/2176-4-0x0000000000520000-0x0000000000528000-memory.dmp

    Filesize

    32KB

  • memory/2176-19-0x0000000074780000-0x0000000074E6E000-memory.dmp

    Filesize

    6.9MB

  • memory/2176-18-0x000000007478E000-0x000000007478F000-memory.dmp

    Filesize

    4KB

  • memory/3036-7-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3036-8-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3036-5-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3036-6-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3036-13-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3036-15-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3036-16-0x0000000074780000-0x0000000074E6E000-memory.dmp

    Filesize

    6.9MB

  • memory/3036-17-0x0000000074780000-0x0000000074E6E000-memory.dmp

    Filesize

    6.9MB

  • memory/3036-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3036-11-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3036-20-0x0000000074780000-0x0000000074E6E000-memory.dmp

    Filesize

    6.9MB

  • memory/3036-21-0x0000000074780000-0x0000000074E6E000-memory.dmp

    Filesize

    6.9MB