Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2023 20:21

General

  • Target

    SecuriteInfo.com.Win32.CrypterX-gen.26527.9245.exe

  • Size

    430KB

  • MD5

    78d347cdf5e45af486ca6fcc2756651b

  • SHA1

    dbc6a1164eb07611944040d9091113568a7588ef

  • SHA256

    aa733006f49afe10de1ea472aba0b3e8e8192bc59d3a3b244d6953d493e57be9

  • SHA512

    f8fd694d60da9ac464ce5ed92ff9f8c86701b599869a075ec384a7ee9831f4f289e8e22b9bbbe8a61445cdfc43f2b436ebda562cec01ba2b5227390c77824f50

  • SSDEEP

    12288:+lQjc/wxiNUzmVFLLUB6A9nTPGWlQB/LVDquaLXQoTNF:3eUYUzmVDALGWlQxLVHa7xT

Malware Config

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 2 IoCs
  • 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 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.26527.9245.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.26527.9245.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3056
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1476

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1476-10-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1476-19-0x00000000067E0000-0x00000000067EA000-memory.dmp

    Filesize

    40KB

  • memory/1476-18-0x0000000006980000-0x0000000006B42000-memory.dmp

    Filesize

    1.8MB

  • memory/1476-17-0x0000000006760000-0x00000000067B0000-memory.dmp

    Filesize

    320KB

  • memory/1476-16-0x00000000053D0000-0x00000000053E0000-memory.dmp

    Filesize

    64KB

  • memory/1476-15-0x0000000074700000-0x0000000074EB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1476-14-0x00000000053D0000-0x00000000053E0000-memory.dmp

    Filesize

    64KB

  • memory/1476-13-0x0000000074700000-0x0000000074EB0000-memory.dmp

    Filesize

    7.7MB

  • memory/3056-4-0x0000000005240000-0x00000000057E4000-memory.dmp

    Filesize

    5.6MB

  • memory/3056-9-0x0000000004C70000-0x0000000004C78000-memory.dmp

    Filesize

    32KB

  • memory/3056-8-0x0000000005070000-0x000000000510C000-memory.dmp

    Filesize

    624KB

  • memory/3056-12-0x0000000074700000-0x0000000074EB0000-memory.dmp

    Filesize

    7.7MB

  • memory/3056-7-0x0000000004C80000-0x0000000004C90000-memory.dmp

    Filesize

    64KB

  • memory/3056-6-0x0000000074700000-0x0000000074EB0000-memory.dmp

    Filesize

    7.7MB

  • memory/3056-5-0x0000000004D30000-0x0000000004DC2000-memory.dmp

    Filesize

    584KB

  • memory/3056-1-0x0000000074700000-0x0000000074EB0000-memory.dmp

    Filesize

    7.7MB

  • memory/3056-3-0x0000000004C80000-0x0000000004C90000-memory.dmp

    Filesize

    64KB

  • memory/3056-2-0x0000000004B60000-0x0000000004BB4000-memory.dmp

    Filesize

    336KB

  • memory/3056-0-0x00000000001D0000-0x0000000000240000-memory.dmp

    Filesize

    448KB