Malicious PDF — malware analysis report

Static analysis result for SHA-256 b97cb16c1f86bb9e…

MALICIOUS

PDF

43.2 KB Created: 2021-05-14 06:42:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d529ae122550c3dc262e138763024a48 SHA-1: 89170e3b305a8758a9606bc82b5d0c1939b7da4a SHA-256: b97cb16c1f86bb9e90fc7d2a5a8615a7d13d72b87529334032babc18337ade25
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors, specifically designed to lure users with promises of game hacks and free currency. The heuristic firings confirm the presence of malicious redirector links and a general lure for game hacks. While no scripts were extracted, the document's structure and embedded links strongly suggest it is designed to redirect users to potentially malicious websites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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.xyz/app/406889139/static-moonactive-net-rewards-game-hack In PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/claim-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/fb-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/free-attacks-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/coin-master-cheat-codes_GM406889139.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/coin-master-app_GM406889139.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/free-robux-only-username_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
stream_003_off00004bd1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BD1 25872 bytes
SHA-256: 4990763d2e372fbf55cfa4265f8dff9a38d57982d24715b5d3588942d8ff3aad
font_01_sfnt_off00008701.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8701 18000 bytes
SHA-256: 9966684b9b98ae9c159578c69a57ea9c5c22f2a0e556d50b45713339f77195c2

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