Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8aca63c73da3119…

MALICIOUS

PDF

46.2 KB Created: 2021-05-17 17:00:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5a3d8f62b49e66c3839c653381d82ce2 SHA-1: 9cc235f6631d496adceadd73bb16385192cb9a7b SHA-256: f8aca63c73da3119ab7f8ebfa297b605ecf46a5a5997fab8bb3fa6660dc2ef01
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirector infrastructure, specifically promoting 'game hacks' and 'generators' to lure victims. The primary lure URL is 'https://netcdn.xyz/app/431946152/how-to-hack-a-roblox-account-easy-game-hack'. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering attack aimed at redirecting users to potentially malicious sites, likely for further exploitation or credential harvesting.

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 https://netcdn.xyz/app/431946152/how-to-hack-a-roblox-account-easy-game-hack In PDF document text
    • http://ipdrs.org/images/coin-master-free-gold-cards-link_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/getrobux-info_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/minecraft-bedrock-download_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/free-downloads-for-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/coin-master-hacks-reddit_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/free-robux-group_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-get-free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/free-coins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/minecraft-cracked-client_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/hacked-client-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/hacking-apps-for-roblox_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_off00004919.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4919 31428 bytes
SHA-256: 8ee5286d2fd85b6d0b275a78c0563d6d4a492cac6c354209fe5b82f55a764e87
font_01_sfnt_off000090de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90DE 18772 bytes
SHA-256: f0aa2a8f008262e8aa636f08cdffff7c9568ae6e0bf5f389be1472b9a6879674

Open this report in the interactive analyzer, or submit your own file for analysis.