Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c315d12b08efbd1…

MALICIOUS

PDF

34.1 KB Created: 2021-07-03 22:49:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 14ba20889fec841fcec26bbfdb68cabb SHA-1: 32afe001e971ae9b7970b1c8eeb89be458a5b578 SHA-256: 5c315d12b08efbd1fb4225d29c383c959a721fc221402c1b53df2d67f70af190
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, primarily offering 'free generators' or 'hacks' for popular games and social media platforms. The primary URL, http://netcdn.tw/app/835599320/free-tiktok-followers-without-verification-game-hack, is flagged as a redirector for game hacks. This suggests the document is a lure to trick users into visiting malicious sites, likely for credential harvesting or to download further malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/835599320/free-tiktok-followers-without-verification-game-hack PDF link annotation
    • http://chem.ipb.ac.id/kim/repository/how-to-download-wurst_GM479516143.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/hack-roblox-players_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/http-bitly-coin-master-free-2021-spins_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-game-hacking-tricks_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/how-to-get-free-stuff-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-robux-and-tix-2021_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/https-rbx-place-rewards_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-robux-only-username-needed_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/can-you-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-robux-download_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/cheat-engine-roblox-2021-august_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F27 22320 bytes
SHA-256: 19053c33190ff693e7b9d9d55c2c64e730c0f2b431f2fcc69fb239f346a0210b
font_01_sfnt_off00006104.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6104 18848 bytes
SHA-256: a6962a1c22e4c901e09cc79e54a35af6e59d852732f3ebf76052f8fdc15db483

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