Malicious PDF — malware analysis report

Static analysis result for SHA-256 275d1e561dbe6181…

MALICIOUS

PDF

25.4 KB Created: 2021-05-17 22:11:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5a42e2484c5ad779e412507e426f21ad SHA-1: 2f4015c19d88e88365e8ddd1a9c82238bf21e492 SHA-256: 275d1e561dbe61819d51de96f122d562f1ee6f47dd49bc4f56b18eacbb701441
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a game hack generator, a common lure for phishing or malware distribution. The document body and embedded URLs reinforce this by referencing game hacks and related topics. While no scripts were directly extracted, the PDF structure and embedded URIs suggest an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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-coin-hack-game-hack PDF link annotation
    • http://www.imperialaccountingfl.com/images/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/hackear-juego-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/how-to-change-your-username-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/roblox-moderators_GM431946152.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/how-to-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/mcpe-master-coins-hack-download_GM406889139.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/coin-master-free-card-link-today_GM406889139.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/coin-master-free-spin-app-2021_GM406889139.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/coin-master-pc-hack_GM406889139.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/smart-lodhi-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/coin-master-hack-co_GM406889139.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/free-800-robux_GM431946152.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://www.imperialaccountingfl.com/images/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004736.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4736 11001 bytes
SHA-256: 51ccb7befef4859959c8b78e716ea35d897a4294b3f17e23060caaa9ecab4a01

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