Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eaba5b4ce6e0881…

MALICIOUS

PDF

44.8 KB Created: 2021-06-03 05:13:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: e1acbd05460cf57d459a3e294807799d SHA-1: 334ffaad6e2090f2578b9276393cb0bb55a20dbd SHA-256: 3eaba5b4ce6e088115b1f67cea5774d4e7ef807f0969f8c4d0275ef75d4f75fc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting game hacks and free items. The primary malicious URL identified is https://netcdn.online/app/406889139/free-spins-on-coin-master-2021-game-hack. This indicates a social engineering attack aimed at luring users to potentially harmful websites. No scripts were extracted, but the PDF structure and embedded URLs strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/406889139/free-spins-on-coin-master-2021-game-hack In PDF document text
    • https://library.pqm.co.id/repository/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • https://library.pqm.co.id/repository/coin-master-free-spins-link-no-verification_GM406889139.pdfIn PDF document text
    • https://library.pqm.co.id/repository/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • https://library.pqm.co.id/repository/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/free-25-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://library.pqm.co.id/repository/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • https://library.pqm.co.id/repository/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • https://library.pqm.co.id/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://library.pqm.co.id/repository/how-to-robux_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/roblox-free-wings_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/coin-master-free-gift-links-2021_GM406889139.pdfIn PDF document text
    • https://library.pqm.co.id/repository/free-robux-working_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • https://library.pqm.co.id/repository/coin-master-hack-without-human-verification-2021_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
stream_004_off0000510f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x510F 25504 bytes
SHA-256: bf7534251ce9e94e9427a4b0a89c56a93ea6da2ef2c730d2189cf386489cfdd4
font_01_sfnt_off00008c49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C49 18288 bytes
SHA-256: e7fc04cebd192de8ea685c8f65a9790caba4d729d1f53b0455241ee170bde56f

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