Malicious PDF — malware analysis report

Static analysis result for SHA-256 dba7714cab452952…

MALICIOUS

PDF

44.0 KB Created: 2021-05-14 23:39:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: db8578fe68f598d771914ae24d44be11 SHA-1: be7e6b5a8fd0add49503f12bbb50660f48eb0278 SHA-256: dba7714cab4529526ce1e34c9699c504f984011841fe6e333287c2eca7b1187f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising free game hacks and currency. The ML classifier also flagged this PDF as malicious. The primary attack pattern involves luring users with promises of free in-game items to a malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/431946152/how-to-get-free-hair-in-roblox-game-hack In PDF document text
    • http://arthakranti.org/images/how-many-levels-in-coin-master_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://arthakranti.org/images/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/roblox-survey-for-robux_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/how-to-get-100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/minecraft-java-edition-free-download-for-android_GM479516143.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/robux-free-com_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/minecraft-tower-defense-2-hacked_GM479516143.pdfIn PDF document text
    • http://arthakranti.org/images/minecraft-free-download-mobile_GM479516143.pdfIn PDF document text
    • http://arthakranti.org/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-game-android-free-download_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/free-roblox-glasses_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_003_off00004932.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4932 27840 bytes
SHA-256: edf89e296f72f89c4811e724bb4bac8ec22b4cd2f3c080ec0e9b6545f3ed6159
font_01_sfnt_off00008900.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8900 18564 bytes
SHA-256: d67237273ed03f92aa8c6c4764a8757174e90409c0462d06d9c122592efde19a

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