Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dceb15c40f0c152…

MALICIOUS

PDF

36.3 KB Created: 2021-05-22 19:17:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: be92dd05c029c356f617c35af735ee19 SHA-1: 0275a50f36a724ab4d85a604741e1977150dd93e SHA-256: 2dceb15c40f0c15219b811f2f981a15c4702ba7827c7675a6908c361c1f40f19
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, with a primary URL pointing to a "coin-master-free-spin-and-coin-links-game-hack" page, indicating a lure for game cheats. The ML classifier also flagged the PDF as malicious. The document body, though partially garbled, contains phrases like 'CLICK HERE TO ACCESS COIN MASTER GENERATOR' and references to game hacks, reinforcing the malicious intent. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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-free-spin-and-coin-links-game-hack PDF link annotation
    • https://www.apartmanychorvatsko24.cz/images/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • https://www.apartmanychorvatsko24.cz/images/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.apartmanychorvatsko24.cz/images/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://www.apartmanychorvatsko24.cz/images/how-to-hack-coin-master-spin-in-hindi_GM406889139.pdfIn PDF document text
    • https://www.apartmanychorvatsko24.cz/images/where-to-get-free-robux_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
stream_002_off000033fe.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33FE 24920 bytes
SHA-256: ac16daa9109210174075364c244a2478e987a6abb62c13ed6ab8a924f75e3532
font_01_sfnt_off00006c89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C89 18228 bytes
SHA-256: ab1c4cdc214a6baf81a15e2f62a40ea9cfbbbf407f0f3dd1c7564e467cf0dae2

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