Analysis

  • max time kernel
    72s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    05/05/2023, 20:54

General

  • Target

    Payment Details PDF.exe

  • Size

    584KB

  • MD5

    81bf7194541beae3d3878600b63e5753

  • SHA1

    67ce7c1ace75ee46b8ce83feedaef37c1f0a59a2

  • SHA256

    201a70eaa336c001f0573d3a2915e2c372df418bbf27c8729b30e4b08da2e8c9

  • SHA512

    09b0a2ec5ce3ffac0705cf27973da0a26ed45eaef2893dc25fdc43b102219f0bbc768d50ac8ca5fdfac32af1cf5777bf74e6bd72a4543baa1bd2fd607473f4ee

  • SSDEEP

    6144:LMZIXrvWfZJpKtHrnI9Dw17I+Ic5T1LxHE8CZV8m+oNRJOO2jRq2E71lOWMqp7t/:e+nIm7I+TRVCEm+oX52RIxlH7tUFu

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot5435719278:AAFkA_rGsUomupSCBqIPHcOBw0iPF0KuOG0/sendMessage?chat_id=5666881718

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 6 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Details PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Details PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1960
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JSkmEG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBE8F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:268
    • C:\Users\Admin\AppData\Local\Temp\Payment Details PDF.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:568

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmpBE8F.tmp

          Filesize

          1KB

          MD5

          6b7793e8871108034653dddbfe160e57

          SHA1

          fe9bf05bf4a12184ea7cd831791359334824f5f7

          SHA256

          e1ac77f2cf87df20f73fc65e2ba5682b42f6b5402026a3cc765f854e7789d982

          SHA512

          936ae56074fc69b7fa807511627dcd7d752fb0f049538f3a01b25ea4d15ba065834f0c0cbe05364c47e59dcddf9bd1fb2c9c5ebffb75e9e4bc21c593381a7b1e

        • memory/568-68-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/568-67-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/568-74-0x00000000049A0000-0x00000000049E0000-memory.dmp

          Filesize

          256KB

        • memory/568-73-0x00000000049A0000-0x00000000049E0000-memory.dmp

          Filesize

          256KB

        • memory/568-72-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/568-70-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/568-63-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/568-66-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/568-65-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/568-64-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/1960-56-0x0000000000340000-0x000000000034C000-memory.dmp

          Filesize

          48KB

        • memory/1960-54-0x0000000000CE0000-0x0000000000D78000-memory.dmp

          Filesize

          608KB

        • memory/1960-55-0x0000000004DF0000-0x0000000004E30000-memory.dmp

          Filesize

          256KB

        • memory/1960-59-0x0000000000450000-0x0000000000476000-memory.dmp

          Filesize

          152KB

        • memory/1960-58-0x0000000005110000-0x0000000005184000-memory.dmp

          Filesize

          464KB

        • memory/1960-57-0x0000000004DF0000-0x0000000004E30000-memory.dmp

          Filesize

          256KB