Malicious PDF — malware analysis report

Static analysis result for SHA-256 36d1a6860836528a…

MALICIOUS

PDF

43.8 KB Created: 2021-06-04 01:15:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 345306f45d184632d18c1f924e900538 SHA-1: c5708aad1c8397b37725c9e0795e504261659e85 SHA-256: 36d1a6860836528a425d7a074b205b4b81bcf5e5876f862f606ff2e43677e27a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links and a lure related to game hacks and free currency, strongly suggesting a phishing or scam attempt. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded links indicate an attempt to redirect users to potentially malicious sites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/free-spins-and-coins-for-coin-master-game-game-hack PDF link annotation
    • http://elib.acls-indonesia.com/repository/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/coin-master-daily-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/pokemon-go-free-like-games_GM1094591345.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/coin-master-new-link-free-spin_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/minecraft-windows-10-key-free_GM479516143.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/minecraft-switch-free_GM479516143.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-robux-please_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/coin-master-fan_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/spin-link_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/coin-master-gold-cards-free-link_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/coin-master-free-spin-realme-products_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/how-to-hack-in-arsenal_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/coin-master-free-spin-and-coins-links-2021_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005198.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5198 24040 bytes
SHA-256: 24a6a6b9dd4d2f7449ff0c4d0f357a1536e0597626b74f73a5fc30d3d9aa53cd
font_01_sfnt_off0000886b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x886B 18320 bytes
SHA-256: d1cf6b486e789d6a7a281824944966070be141b92be060b449a52bae7023ebff

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