Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fa6e1569aeb1c77…

MALICIOUS

PDF

36.9 KB Created: 2021-05-21 08:13:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7003c16cbd130d9bc3a22721d5fc5f92 SHA-1: 1effc57ff0f2d8461a3dc3178d24020b53ba5253 SHA-256: 2fa6e1569aeb1c77ab5cb3dafef1a0bee6ce45cf9179703996e42be4ef24aa8a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/479516143/free-minecraft-skins-xbox-one-game-hack PDF link annotation
    • http://thehancgroup.com/images/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://thehancgroup.com/images/roblox-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://thehancgroup.com/images/coin-master-mod-version-free-download-34-4_GM406889139.pdfIn PDF document text
    • http://thehancgroup.com/images/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://thehancgroup.com/images/free-flip-master-coins_GM406889139.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_002_off000034d0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34D0 25132 bytes
SHA-256: 80a08216a0114633b6e5ffd977b34fb9772ceb5550fafd2c4a4017ff9b1a40a9
font_01_sfnt_off00006e80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E80 18476 bytes
SHA-256: 232ed5a85e3eb7365037632e89adcc3de647f06670efb3a8119b1009e47d113e

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