Malicious PDF — malware analysis report

Static analysis result for SHA-256 0aade01dd8ada2a6…

MALICIOUS

PDF

34.3 KB Created: 2021-06-29 05:32:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 29b41430a9280d93f8a4b0df46859fc9 SHA-1: c9ad3c8aceeb11939cb3fb9715d41e3ddb464f7b SHA-256: 0aade01dd8ada2a69554f69936786a8118d8706e76a6508448189835e42e4885
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links, specifically targeting users with lures related to game hacks and generators. The embedded URL `http://netcdn.co/app/431946152/inject-hack-roblox-buides-club-game-hack` is identified as a malicious redirector. The document body, though partially corrupted, also contains this URL and suggests a lure for 'Inject Hack Roblox'. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link within the PDF.

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/inject-hack-roblox-buides-club-game-hack In PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-codes-for-new-dominus-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-online-roblox-code-generator_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/cheat-codes-for-tower-defense-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/what-roblox-is-good-about-hacked-account_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/descargar-roblox-hackeado-para-pc-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-2021-easy-not-working_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/new-figer-hack-pastebin-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-hack-app-android-download_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-hack-lost-world-2021-com_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hack-to-find-people-ingame-in-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/minecraft-pe-apk-free-download_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_off0000308d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x308D 21668 bytes
SHA-256: 154febf25fd97fb6b9c562796b419d378d3f7d0b88a2962ff9473723116f724d
font_01_sfnt_off00006005.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6005 19380 bytes
SHA-256: bc87d4b7bb7cf7f2d60df051fa3ee27b1400946152cdd190658576b6e33af1dd