Malicious PDF — malware analysis report

Static analysis result for SHA-256 22a850b4594e9f6f…

MALICIOUS

PDF

42.3 KB Created: 2021-05-13 11:32:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: a869e47d500b574e9a95ea07beecc689 SHA-1: dd2cf73a22e2c0a725b7325fa35954b719048399 SHA-256: 22a850b4594e9f6f61cbc629001c9e6e53709c89ad2256c5626a2bf45c4a64c8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that are designed to lure users into clicking on them by promising game hacks and rewards. The primary URL, https://netcdn.xyz/app/406889139/coin-master-email-rewards-link-game-hack, is flagged as a game hack redirector. The document body, though heavily obfuscated, contains references to game rewards and includes numerous links to external websites, reinforcing the lure. No scripts were extracted, but the presence of embedded URLs and the 'game hack redirector' heuristic strongly suggest a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-email-rewards-link-game-hack PDF link annotation
    • http://maxvanberchem.org/images/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://maxvanberchem.org/images/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://maxvanberchem.org/images/get-more-robux_GM431946152.pdfIn PDF document text
    • http://maxvanberchem.org/images/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://maxvanberchem.org/images/coin-master-cheats-for-free-spins_GM406889139.pdfIn PDF document text
    • http://maxvanberchem.org/images/www-coinmaster-com_GM406889139.pdfIn PDF document text
    • http://maxvanberchem.org/images/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://maxvanberchem.org/images/coin-master-online_GM406889139.pdfIn PDF document text
    • http://maxvanberchem.org/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://maxvanberchem.org/images/is-minecraft-free-on-mac_GM479516143.pdfIn PDF document text
    • http://maxvanberchem.org/images/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://maxvanberchem.org/images/roblox-skin-free_GM431946152.pdfIn PDF document text
    • http://maxvanberchem.org/images/is-minecraft-free-on-switch_GM479516143.pdfIn PDF document text
    • http://maxvanberchem.org/images/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://maxvanberchem.org/images/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://maxvanberchem.org/images/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://maxvanberchem.org/images/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://maxvanberchem.org/images/coin-master-hack-2021-android-apk_GM406889139.pdfIn PDF document text
    • http://maxvanberchem.org/images/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://maxvanberchem.org/images/wurst-hacks_GM479516143.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
stream_003_off00004765.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4765 26080 bytes
SHA-256: fa9490f9af29c45c79a143cd5c8b2b996b58780deade0a7223b41dd4913f2720
font_01_sfnt_off000082a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A2 18388 bytes
SHA-256: 64cb04ece7ee92720496beade2ddf5418fbdb83628caad053a3eb83208978ed4

Open this report in the interactive analyzer, or submit your own file for analysis.