Analysis

  • max time kernel
    98s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-10-2022 07:57

General

  • Target

    tmp.exe

  • Size

    1.0MB

  • MD5

    00839478c6c86d747952b11217b1ad98

  • SHA1

    bc363604aac42b10f0106f28cd53a85fa03dea08

  • SHA256

    beb581aaec97ca8d00d79699577849cd46a8e25561e29e906a1adb254ffc2549

  • SHA512

    4eb303459709b64c06838f6c8ffa936c88839df01b976e0c058c2ba687bcd6df2e50282a0145929f76abd5cf9cfc3b7983eb6f5b32803b68897ac942caf407d2

  • SSDEEP

    24576:BxZ81WYVrrukMf7KKWx/ekX3kmIGQP7EBtwyLl:XZ8cTkMfe/eU0fjEjwyL

Malware Config

Extracted

Family

snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 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\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Users\Admin\AppData\Local\Temp\tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3968

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    1KB

    MD5

    e08f822522c617a40840c62e4b0fb45e

    SHA1

    ae516dca4da5234be6676d3f234c19ec55725be7

    SHA256

    bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7

    SHA512

    894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4

  • memory/2024-132-0x0000000000960000-0x0000000000A72000-memory.dmp

    Filesize

    1.1MB

  • memory/2024-133-0x0000000005980000-0x0000000005F24000-memory.dmp

    Filesize

    5.6MB

  • memory/2024-134-0x0000000005470000-0x0000000005502000-memory.dmp

    Filesize

    584KB

  • memory/2024-135-0x0000000005420000-0x000000000542A000-memory.dmp

    Filesize

    40KB

  • memory/2024-136-0x0000000008EF0000-0x0000000008F8C000-memory.dmp

    Filesize

    624KB

  • memory/2024-137-0x0000000008F90000-0x0000000008FF6000-memory.dmp

    Filesize

    408KB

  • memory/3968-139-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3968-141-0x0000000006C80000-0x0000000006E42000-memory.dmp

    Filesize

    1.8MB