Malicious PDF — malware analysis report

Static analysis result for SHA-256 01a4f3dc6369fdbc…

MALICIOUS

PDF

48.0 KB Created: 2021-06-03 08:22:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 8bcfbdd9249c1802c0f41077be0af02b SHA-1: c8b6ea99b25d9106ebcf8d568dccc5f32096cf45 SHA-256: 01a4f3dc6369fdbc7d8de4ca875a72331ee1132aa355230223519ae35693ded9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically targeting users interested in game hacks and generators. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous redirector links indicates a clear intent to lead users to potentially harmful content. No scripts were extracted, but the document's structure and embedded links are sufficient to infer a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/406889139/coin-master-blogspot-game-hack In PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/robuxfree-con_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/www-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/try-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/free-tik-tok-2021_GM835599320.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-spins-coin-master-without-completing-offers_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-mods-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/hack-coin-master-game-apk_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/pokemon-go-free-legendary_GM1094591345.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-free-coin-and-spin-app_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_off00005232.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5232 25920 bytes
SHA-256: d842022c9685febe66a529f0a95300a6dc64d451f30d36cbabba6a9be3ad2733
font_01_sfnt_off00008ed6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ED6 2880 bytes
SHA-256: b053084cafd01c649462d87667ba56c569d6480ce60e7d20ae57ef6124cf178e
font_02_sfnt_off000098c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98C1 18300 bytes
SHA-256: 856755575c1a7459373c524fcaf021c967fba3d5c4d4b4c6d782a1862ea9e167

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