Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0eebc7e12574fd3…

MALICIOUS

PDF

35.4 KB Created: 2021-06-25 13:35:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 5c1ec48e656722712d825b820f0a3493 SHA-1: 4b1f01c99f1843352a3c389c2c5f33c4eb8af877 SHA-256: c0eebc7e12574fd3613acccce13ea6f75eed142d9ada01a3bd86be95beeb7171
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is designed as a lure, employing SEO link farming techniques to attract users searching for game hacks and cheats. It contains numerous links to external PDFs and a primary link to a known malicious redirector infrastructure. The document body and embedded links suggest a scam aimed at tricking users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/does-cheat-engine-work-on-roblox-vehicle-simulator-game-hack In PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/cute-free-outfits-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/rroblox-free-robux-donating-to-random-fans_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/how-to-get-free-pet-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/coin-master-daily-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/vechil-simulator-money-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/getrobux-come_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/roblox-hack-bogga-bogga_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/coin-master-card-collection-hack-2021_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/download-free-hacks-for-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/how-to-get-a-free-robux-to-subsricbe_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/how-much-robux-can-you-get-with-1-million-dollars_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/moonactive-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/i-didnt-get-my-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/how-to-speed-hack-on-roblox-sword-fighting-tournament-39_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/free-minecraft-website_GM479516143.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/how-to-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/coin-master-35-13-hack-download_GM406889139.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_off000030a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30A6 22344 bytes
SHA-256: c70cbc047b463ff027861aa9b1c0339419404be65bc7e82ebf3c62b4523bf709
font_01_sfnt_off000062a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A7 19948 bytes
SHA-256: 3cef4d963aec188c4c8c925bde069caf5e3293ea09a1c46958a0f80ab35c8015

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