Malicious PDF — malware analysis report

Static analysis result for SHA-256 1168a498d29572eb…

MALICIOUS

PDF

43.8 KB Created: 2021-06-13 23:07:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: eef3e3c313d0f7892d4ecb0ee3654c60 SHA-1: 183af9dde389a0a08d2b7fb71e7dfacd111f5174 SHA-256: 1168a498d29572eb9764ebe5463c11ce6b6ef6f2d1159ca22195582b364eebc4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains heuristics indicating it links to a game hack lure, specifically targeting Roblox. The embedded URL points to a suspicious domain that likely hosts a malicious payload or redirects to a phishing site. While no scripts were explicitly extracted, the nature of the lure and the embedded URLs suggest an attempt to trick the user into downloading or executing further malicious content, potentially exploiting client vulnerabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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.co/app/431946152/how-to-hack-roblox-working-game-hack PDF link annotation
    • http://io24.com.ar/images/roblox-operation-scorpion-hack_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/how-many-levels-are-there-in-coin-master_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/roblox-skin-free_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/free-robux-legit-2021_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/cheats-for-rake-classic-edition-roblox_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/collect-robux_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/free-robux-meme_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/coin-master-free-foxy-food_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/coin-master-34-6-hack_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • http://io24.com.ar/images/coin-game_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/coin-master-spins_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/how-to-change-your-name-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000482f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x482F 27524 bytes
SHA-256: 2ca841b66f6786cce3924ecb5d6fbee9788248538551c2f575379e9efeebf329
font_01_sfnt_off000086db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86DB 18952 bytes
SHA-256: 152646cfb66c637ff0fa9ec67c925eff768929d687acddb26e8acae7aecff540

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