Analysis

  • max time kernel
    71s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    02-05-2023 19:17

General

  • Target

    INS Rem CrdT TT copy.exe

  • Size

    780KB

  • MD5

    9f9d2eeb4c55962e4771fed02a66ac89

  • SHA1

    1fc000f01ad7c8c55883aaeaceab5bbc5ef3fd77

  • SHA256

    91af5b7dfb0cba2f5a7b77d317adb7fac20692d9f759127ecbd780e23fc4673d

  • SHA512

    6624323775640a844729872e047dff32a7bb6cba6ba2cc801978ab327e1d4c6f0dc4228eb2ca8b8e71df56ce3732621d04cf9c69746f947ec9dbe9304898278c

  • SSDEEP

    12288:DC9PC6YN1Pg+70pKXQlIj5g15BL980v/J11paGdyAwFqJATUR5AzFu9:b5g1z98qZpaGIAAqApu9

Malware Config

Extracted

Family

snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 7 IoCs
  • StormKitty

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

  • StormKitty payload 7 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\INS Rem CrdT TT copy.exe
    "C:\Users\Admin\AppData\Local\Temp\INS Rem CrdT TT copy.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:836
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DYzOKOojLqW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp951F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1508
    • C:\Users\Admin\AppData\Local\Temp\INS Rem CrdT TT copy.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1512

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp951F.tmp

    Filesize

    1KB

    MD5

    ef8a1e51624fc195fbed35c1c830fe1d

    SHA1

    47f968a81aa23c22e15500f5bc9e63f9ee547751

    SHA256

    653981c042ebc2fcf282b158afd82ed25b4d6487f5e2963ce9e46f4b52225915

    SHA512

    4c82a71f94e7cab68814d8aca638eaef16f2cb39980c6114172e63cb58b49355340bd4c4949f88e468da7f726086117f49d0cecea4079b513729d5f46dc53f46

  • memory/836-54-0x0000000000A60000-0x0000000000B28000-memory.dmp

    Filesize

    800KB

  • memory/836-55-0x00000000008E0000-0x0000000000920000-memory.dmp

    Filesize

    256KB

  • memory/836-56-0x00000000004A0000-0x00000000004AC000-memory.dmp

    Filesize

    48KB

  • memory/836-57-0x00000000008E0000-0x0000000000920000-memory.dmp

    Filesize

    256KB

  • memory/836-58-0x0000000005050000-0x00000000050DC000-memory.dmp

    Filesize

    560KB

  • memory/836-59-0x0000000004E00000-0x0000000004E3C000-memory.dmp

    Filesize

    240KB

  • memory/1512-64-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1512-63-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1512-65-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1512-66-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1512-67-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1512-68-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1512-70-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1512-72-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1512-73-0x0000000004C70000-0x0000000004CB0000-memory.dmp

    Filesize

    256KB

  • memory/1512-74-0x0000000004C70000-0x0000000004CB0000-memory.dmp

    Filesize

    256KB