Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf560d4f887f599a…

MALICIOUS

PDF

47.0 KB Created: 2021-06-03 19:39:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: bcc12cfa7e4935dfd39d29da5d7eeea2 SHA-1: 309b91a3caa6d72dd22a92cc375e243f7337386e SHA-256: bf560d4f887f599addce3c97ea0766dc8424c453812eeac602ecd86688a19670
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a lure related to game hacks, specifically for Coin Master, directing users to a suspicious URL. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest an attempt to redirect users to a malicious site, likely for further exploitation or credential harvesting. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/coin-master-spin-ml-game-hack PDF link annotation
    • http://digilib.iailm.ac.id/repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-spins-and-coins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/android-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-to-make-a-private-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-to-make-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/pubg-uc-94fbr_GM1330123889.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/get-free-spins-on-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/get-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/hackear-coin-master-sin-root_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-spin-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/hack-my-game-xyz-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/100-free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-tricks_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000052c2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52C2 25300 bytes
SHA-256: 8086fb6d12ba798ede6d74182c4128cfbd2b68c043e2a7a90c19a82b67b40a93
font_01_sfnt_off00008cbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CBD 2840 bytes
SHA-256: 30dce2b9c1950da345d7fed8f00c38887adfa2f2ddecc31775af2315e819ac37
font_02_sfnt_off00009670.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9670 17796 bytes
SHA-256: 3b82762977221ce4a8aa4f34a999f4b9b1a52ddbe80fdd6ab7df254e8a1ed8c9

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