Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a60b3b739c68c42…

MALICIOUS

PDF

34.1 KB Created: 2021-07-23 18:26:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 88980b5906d14a588ddae0b9553c5f2c SHA-1: c8a54c79cb234dd3816ae0cb9fa682fa7328440b SHA-256: 7a60b3b739c68c4219e93d96a9044193b3cd37c3ef3b0c6a155848ccb949ea4e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains multiple URLs related to 'free Robux' and 'game hacks', indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious. Although no scripts were directly extracted, the presence of embedded URLs and the document's content suggest it's designed to trick users into visiting malicious sites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

Heuristics 4

  • 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.
  • 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
  • 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.tw/app/431946152/how-to-get-free-robux-with-no-verification-game-hack In PDF document text
    • https://magistrinfo.ru/images/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • https://magistrinfo.ru/images/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://magistrinfo.ru/images/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://magistrinfo.ru/images/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://magistrinfo.ru/images/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • https://magistrinfo.ru/images/minecraft-free-download-chromebook_GM479516143.pdfIn PDF document text
    • https://magistrinfo.ru/images/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • https://magistrinfo.ru/images/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • https://magistrinfo.ru/images/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://magistrinfo.ru/images/minecraft-redeem-code-free_GM479516143.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
font_00_sfnt_off00002eb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB2 22436 bytes
SHA-256: c326eb32f11ea9cdca976f7681450135a96486efb81fdedbd5cd40c1ad334b79
font_01_sfnt_off00006045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6045 19312 bytes
SHA-256: 1dcd8f472644bbfbea9938e32028314b4c3da663e3cbf8c509e8fe1bea5d503c