Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe2c7b1646d287cd…

MALICIOUS

PDF

28.5 KB Created: 2021-06-04 03:23:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 42374a1700213bd93005755bfd1e88c7 SHA-1: aa7b14acf5b2bd836330c2e24488f7bd0259e093 SHA-256: fe2c7b1646d287cde6ef237789a4282d9f711818af66ba2199639c107ca93521
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that lead to a known malicious redirector infrastructure, specifically promoting 'free generators' and 'game hacks'. The ML classifier strongly indicates maliciousness. The document body and extracted URLs reinforce the lure of obtaining in-game currency or cheats, which is a common social engineering tactic to drive traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 3

  • 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.
  • 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/431946152/how-import-audio-free-roblox-game-hack In PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-minecraft-svg-cutting-files_GM479516143.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/is-coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/can-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-facebook-page_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-tiktok-fans-no-verification_GM835599320.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/minecraft-complete-handbook_GM479516143.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-tricks_GM406889139.pdfIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004f64.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F64 12313 bytes
SHA-256: fd7655338071f85b819c3ce34df7405b2b1c8f9ac1e0fd1597d5968facaf77a6

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