Analysis

  • max time kernel
    75s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    28-03-2023 06:14

General

  • Target

    TT return copy .pdf.exe

  • Size

    1.0MB

  • MD5

    10d17b5b38280ae719f8e8d9bb68422b

  • SHA1

    5679dc8fcbd8f4bae164494e361590d52f04d431

  • SHA256

    0312ca773d06b41b2906310879143c0737bb66dbfda5d01ec1ec69d4cfb58adc

  • SHA512

    8bd099546edf4910010966821afdfdbe41f8f2dd41a501fa65cfd56799380639f9329614fcb9dfd5e4d6800e1db6564ed9c78623b94082100cee663d72fb3f22

  • SSDEEP

    24576:EwrVZ96e5wbe71SW3dslTfhdVWq2FS2qef2:D3Tse77CTPVEFS2

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot5302690346:AAHm8HQofEvDG4ubNtPRHLfVIUU5VWSx970/sendMessage?chat_id=1673719962

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 7 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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 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 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\TT return copy .pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\TT return copy .pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:948
    • C:\Users\Admin\AppData\Local\Temp\TT return copy .pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\TT return copy .pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1772

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/948-54-0x0000000000C80000-0x0000000000D8A000-memory.dmp
    Filesize

    1.0MB

  • memory/948-55-0x0000000004C00000-0x0000000004C40000-memory.dmp
    Filesize

    256KB

  • memory/948-56-0x0000000000510000-0x0000000000530000-memory.dmp
    Filesize

    128KB

  • memory/948-57-0x0000000004C00000-0x0000000004C40000-memory.dmp
    Filesize

    256KB

  • memory/948-58-0x0000000000570000-0x000000000057C000-memory.dmp
    Filesize

    48KB

  • memory/948-59-0x0000000005830000-0x00000000058D2000-memory.dmp
    Filesize

    648KB

  • memory/948-60-0x0000000000BA0000-0x0000000000BC8000-memory.dmp
    Filesize

    160KB

  • memory/1772-61-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1772-62-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1772-63-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1772-64-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1772-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/1772-66-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1772-68-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1772-70-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1772-71-0x00000000003B0000-0x00000000003F0000-memory.dmp
    Filesize

    256KB

  • memory/1772-72-0x00000000003B0000-0x00000000003F0000-memory.dmp
    Filesize

    256KB