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Analysis

  • max time kernel
    130s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/09/2024, 11:31

General

  • Target

    dekont.pdf.exe

  • Size

    515KB

  • MD5

    af524ce7c911317b91b4f5bd7c99eec8

  • SHA1

    2dd79a2eff64614a5ca783bca004c078b8d4b4a9

  • SHA256

    3fc278308168c0c7f245925212bb713f8096c6dc2241900be9db5027d384385a

  • SHA512

    8096c10fa544de31a6db1a74a85839d9c8cb5374c4a7ee5efb51d3d4b8d4595470944cf67ffecd918ce35b67d54a2085b2da3538f4075516d31aa37bca3423f0

  • SSDEEP

    12288:iIFzKfj19UGi8mVV4Mc//Bq8rmq8WqSgxg3AyShBWf9i72l:bK/FixVDc/s8P84PSKfkE

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7323804265:AAGOrHmilwRNOOZbuVQa6WTtwu__mfCEENE/sendMessage?chat_id=7365454061

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 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\dekont.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3460
    • C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/2132-11-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2132-20-0x0000000006DE0000-0x0000000006FA2000-memory.dmp

    Filesize

    1.8MB

  • memory/2132-19-0x0000000006BC0000-0x0000000006C10000-memory.dmp

    Filesize

    320KB

  • memory/2132-18-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/2132-17-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/2132-16-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/2132-14-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/3460-5-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/3460-9-0x0000000006840000-0x00000000068A8000-memory.dmp

    Filesize

    416KB

  • memory/3460-10-0x0000000008FB0000-0x000000000904C000-memory.dmp

    Filesize

    624KB

  • memory/3460-8-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/3460-7-0x000000007487E000-0x000000007487F000-memory.dmp

    Filesize

    4KB

  • memory/3460-6-0x00000000055F0000-0x0000000005600000-memory.dmp

    Filesize

    64KB

  • memory/3460-15-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/3460-0-0x000000007487E000-0x000000007487F000-memory.dmp

    Filesize

    4KB

  • memory/3460-4-0x0000000005400000-0x000000000540A000-memory.dmp

    Filesize

    40KB

  • memory/3460-3-0x0000000005340000-0x00000000053D2000-memory.dmp

    Filesize

    584KB

  • memory/3460-2-0x00000000059D0000-0x0000000005F74000-memory.dmp

    Filesize

    5.6MB

  • memory/3460-1-0x00000000008F0000-0x0000000000976000-memory.dmp

    Filesize

    536KB