Malicious PDF — malware analysis report

Static analysis result for SHA-256 cab3e1e60fcf37d0…

MALICIOUS

PDF

34.9 KB Created: 2021-06-27 23:52:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 36ab39e99cdf39df4c41d87cf8d3d158 SHA-1: c89f92096818565515024e2e2cd848b7fc0e755a SHA-256: cab3e1e60fcf37d0505305bf2f1ac43da8c48631da02c47090bd1a7ff5930139
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically promoting 'game hacks' and 'free generators' for popular games. The primary lure URL is http://netcdn.co/app/431946152/how-to-get-robux-on-roblox-for-free-on-phone-game-hack, which is flagged as malicious. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting these sites, likely leading to further malware downloads or phishing attempts.

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/how-to-get-robux-on-roblox-for-free-on-phone-game-hack In PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-free-gold-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-roblox-accounts-crack_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-bear-mask-roblox_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/master-coin-hack_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/pokemon-go-free-coins-android_GM1094591345.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-spins-coin-master-2021-no-verification_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-free-gucci-pants_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/hacks-and-cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-get-everything-free-in-roblox-catalog_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/working-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-clown-hack_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-robux-generator-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/jailbreak-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31FE 22048 bytes
SHA-256: f181928a742dd6b98691f8de018e10d899dd62c251ba40ea34643d5baae6f182
font_01_sfnt_off0000627b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x627B 19376 bytes
SHA-256: ff073322d0e5895dca71e6129360cf0d2a23e40a7be5da5c4b2f46bdaa83c53e

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