Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f25e9e1add05bb3…

MALICIOUS

PDF

21.5 KB Created: 2021-06-17 16:19:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9601e5ea49cf65f78ff7622adf0853d1 SHA-1: 75a9b3dea6e171c0c66b1929d92d3db070e74f9f SHA-256: 7f25e9e1add05bb302dc7519c81f9923baaca763e66fc0cb7154ee1e62bfbc9d
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and extracted URLs suggest a lure related to game hacks and free currency, aiming to trick users into clicking the malicious links. No scripts were extracted, but the presence of malicious redirector links is a strong indicator of a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

Heuristics 3

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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/free-roblox-render-game-hack In PDF document text
    • http://lib.untad.ac.id//repository/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-dbor-hack_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-roblox-groups_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-online-hack_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/robux-free-online_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/fart-attack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/cpbildco-robux_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-roblox-gear_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-robux-scammers-to-troll_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-hack-version-2021-download_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-free_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/optifine-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-hack-download-ios_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/hack-of-2021-roblox_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/how-to-hack-coin-master-game-2021_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-free-spins-coins_GM406889139.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002932.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2932 21144 bytes
SHA-256: 214048a64ed3955fd2255b8bd10ac8b2385ae23f8e99c90c3ff6cf8ab15c64e9

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