Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f38975fe857dbff…

MALICIOUS

PDF

34.8 KB Created: 2021-06-23 10:25:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7b4dd8d91cab0b4d1f6eb55aa06dbf28 SHA-1: e55a4d2d49e2e57153a09083e29cb0cb303eacd2 SHA-256: 2f38975fe857dbff53f7a80909729f7c5530196e074cadd5b6ece09d489c2c0e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to a malicious domain, likely serving as a lure for free game hacks. The document body and heuristics indicate a redirection to potentially malicious content, possibly leading to further malware downloads or phishing attempts. No scripts were extracted, but the embedded URLs and redirection behavior are strong indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.co/app/431946152/free-hack-scripts-for-roblox-game-hack In PDF document text
    • http://perpus.stikesphi.ac.id/repository/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/apps-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/wurst-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/how-to-get-credit-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/coin-master-game-free-spin-download_GM406889139.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/free-admin-logo-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/hacks-for-boulevard-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/pokemon-go-free-codes-october-2021_GM1094591345.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/pokemon-go-fest-free_GM1094591345.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/how-do-u-get-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/how-to-get-free-faces-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/roblox-robux-hack-generator_GM431946152.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_off0000300c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x300C 22588 bytes
SHA-256: dc3661a16aba50ba394203596f0968015480d9f648e2817d36a9eaa1ab5965bf
font_01_sfnt_off000062a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A2 19220 bytes
SHA-256: 0f9e414fb888591b6c09bbfcdc242eb76cc6e6159d0988f0a3bd2e109c6f8f4a

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