Analysis

  • max time kernel
    158s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-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 1 IoCs
  • StormKitty

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

  • StormKitty payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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).

  • Program crash 1 IoCs
  • 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Details PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Details PDF.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:632
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JSkmEG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp53EC.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1960
    • C:\Users\Admin\AppData\Local\Temp\Payment Details PDF.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3716
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 1540
        3⤵
        • Program crash
        PID:4056
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3716 -ip 3716
    1⤵
      PID:3536

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

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

            Filesize

            1KB

            MD5

            84e77a587d94307c0ac1357eb4d3d46f

            SHA1

            83cc900f9401f43d181207d64c5adba7a85edc1e

            SHA256

            e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99

            SHA512

            aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691

          • C:\Users\Admin\AppData\Local\Temp\tmp53EC.tmp

            Filesize

            1KB

            MD5

            704ba8ca112e912ed21908b7b07e3428

            SHA1

            9bde540f3da0967d4bf09319739e69114e78bac5

            SHA256

            cf88f704f9a2d99d072a464b4f0c3f6921e47975377d0f1fee2796fe005c9c2a

            SHA512

            22a89e0bd6b45a75f22eb8c0b9cda0e1ee0bd8ed8c2f0a1ce367839dec145856fa23715d0d55a50c80527500fb03fec7e96be071c193b6e2377a94295129dcb4

          • memory/632-133-0x0000000000A80000-0x0000000000B18000-memory.dmp

            Filesize

            608KB

          • memory/632-134-0x0000000005B30000-0x00000000060D4000-memory.dmp

            Filesize

            5.6MB

          • memory/632-135-0x00000000054A0000-0x0000000005532000-memory.dmp

            Filesize

            584KB

          • memory/632-136-0x0000000005620000-0x00000000056BC000-memory.dmp

            Filesize

            624KB

          • memory/632-137-0x0000000005560000-0x000000000556A000-memory.dmp

            Filesize

            40KB

          • memory/632-138-0x0000000005860000-0x0000000005870000-memory.dmp

            Filesize

            64KB

          • memory/632-139-0x0000000005860000-0x0000000005870000-memory.dmp

            Filesize

            64KB

          • memory/3716-143-0x0000000000400000-0x0000000000426000-memory.dmp

            Filesize

            152KB

          • memory/3716-146-0x0000000005850000-0x0000000005860000-memory.dmp

            Filesize

            64KB

          • memory/3716-147-0x0000000005850000-0x0000000005860000-memory.dmp

            Filesize

            64KB