Analysis

  • max time kernel
    97s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    05/05/2023, 20:58

General

  • Target

    ShippingDocuments.pdf.exe

  • Size

    623KB

  • MD5

    c484332886c809a3452f19103ce0cfc7

  • SHA1

    42e0ea78388c594e6abab63c37464f71ed234f58

  • SHA256

    21777e7d8c275e5e9fc22a08172bfd5b9872340f46523df83bf2dd7a4b611dd2

  • SHA512

    c48a3bcb80d8dc51c327f5d952df4a73aaa1ca95720c039efe4caabfcb8f0d2bcb53456071fa0aecd87a6f279281ec5b1ed316f537078e4fbff9f502fe236372

  • SSDEEP

    12288:NOdlpV5YHhorPTfFZyN8TyjbduPk8RwctUO8D9ko:NKAKfysdk46Bk

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6029559841:AAEqr8_NCfqapJgAzw8PoPbqoCosnsk1VO0/sendMessage?chat_id=6033043077

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 5 IoCs
  • StormKitty

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

  • StormKitty payload 5 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ShippingDocuments.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\ShippingDocuments.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1336
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\ShippingDocuments.pdf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:652
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tjyThmp.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:564
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tjyThmp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9D1.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1184
    • C:\Users\Admin\AppData\Local\Temp\ShippingDocuments.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\ShippingDocuments.pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1552

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmp9D1.tmp

          Filesize

          1KB

          MD5

          e8c446d36f5ae1bfff0531345a83295b

          SHA1

          6e4abc04c15c6738ff4564ed5573fddf837966ed

          SHA256

          8025dcad55b733b28ab3f065a60b6c08847d828981e7a5e857151c26efe752fe

          SHA512

          188c39163c3eab86ae6f9cf82c1a5f6047a4465fc6d17025cc2628acd3260b71ca5ecb31910b79d765668854314275ee82fa315a0472a362c554b81d7d09e0b9

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\8QZ9A0R8PQ2LMBEGUJ9W.temp

          Filesize

          7KB

          MD5

          1c756dcc09ba65f4e3c58928abd1c3fc

          SHA1

          8adf0c8e694aa1768f02d08d20185c566daf05af

          SHA256

          736b3d403f764a1dc02a94d90801e0e0b27c182b310d60efb6cc23801491039d

          SHA512

          9b905313f7d6e76f9c2ba0132c0b72b4bf528016e01582d12908139b0bd5970951e992d909aa80278688c8e3165bf6fdc30e17ebb9c2cedca320ae0fe964cca7

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

          Filesize

          7KB

          MD5

          1c756dcc09ba65f4e3c58928abd1c3fc

          SHA1

          8adf0c8e694aa1768f02d08d20185c566daf05af

          SHA256

          736b3d403f764a1dc02a94d90801e0e0b27c182b310d60efb6cc23801491039d

          SHA512

          9b905313f7d6e76f9c2ba0132c0b72b4bf528016e01582d12908139b0bd5970951e992d909aa80278688c8e3165bf6fdc30e17ebb9c2cedca320ae0fe964cca7

        • memory/564-84-0x0000000002540000-0x0000000002580000-memory.dmp

          Filesize

          256KB

        • memory/652-83-0x0000000002480000-0x00000000024C0000-memory.dmp

          Filesize

          256KB

        • memory/1336-55-0x0000000004DB0000-0x0000000004DF0000-memory.dmp

          Filesize

          256KB

        • memory/1336-56-0x0000000000310000-0x0000000000324000-memory.dmp

          Filesize

          80KB

        • memory/1336-57-0x0000000004DB0000-0x0000000004DF0000-memory.dmp

          Filesize

          256KB

        • memory/1336-58-0x0000000000330000-0x000000000033C000-memory.dmp

          Filesize

          48KB

        • memory/1336-59-0x00000000043F0000-0x0000000004452000-memory.dmp

          Filesize

          392KB

        • memory/1336-72-0x0000000004380000-0x00000000043A8000-memory.dmp

          Filesize

          160KB

        • memory/1336-54-0x0000000000100000-0x00000000001A2000-memory.dmp

          Filesize

          648KB

        • memory/1552-73-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/1552-76-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/1552-77-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/1552-78-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/1552-80-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/1552-82-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/1552-75-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/1552-74-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB