Malicious PDF — malware analysis report

Static analysis result for SHA-256 327c25e6859ae5b4…

MALICIOUS

PDF

34.2 KB Created: 2021-07-04 16:41:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 69cb87033b78acb89de02b823ffc8213 SHA-1: 5ec954603259a244a6bd5c1f9253dfdd42af647f SHA-256: 327c25e6859ae5b4bddef10a0d3aaa76b98fd534675e29faba76f50232177abe
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game hacks and free currency, directing users to a known malicious redirector. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the document's structure and embedded links strongly suggest a phishing or scam attempt.

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.tw/app/431946152/roblox-premium-free-game-hack In PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/how-to-get-free-bc-in-roblox-patebin_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/free-promo-codes-roblox-not-expired_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/best-roblox-hack-executer_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/hack-coin-master-using-cheat-engine_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/pubg-uc-buy_GM1330123889.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/roblox-redeem-robux_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/minecraft-free-online-games_GM479516143.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/toolbox-for-minecraft-pe-mod-apk_GM479516143.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/roblox-free-followers_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/hacks-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/coin-master-tricks_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/coin-master-hack-software-download_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id//repository/free-robux-obby-2021_GM431946152.pdfIn PDF document text
    • http://perpus.smkn1pemangkat.sch.id/repository/free-robux-no-gift-card_GM431946152.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_off00002e6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E6F 22308 bytes
SHA-256: fd038d3479aa6d431de58bb10cc2ad32501349fe56a1a2626fde9b7014f03153
font_01_sfnt_off00006001.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6001 19324 bytes
SHA-256: c8a2b1ae1c1508803a3d8c69ed3754c7f46d1063272e7458056edfc0801350b1

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