Malicious PDF — malware analysis report

Static analysis result for SHA-256 46a04cf38186fde3…

MALICIOUS

PDF

34.9 KB Created: 2021-07-08 17:57:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 9a586112e541c600412f012e25747d65 SHA-1: d92bad10e144074169a19778947ccbb5bd7b07fe SHA-256: 46a04cf38186fde37921b68c880186ce28edf01c90ed809e38c590165ddf907a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to a malicious URL. The document body also contains this URL and mentions 'Apk Coin Master Hack', indicating a social engineering attempt to trick users into downloading potentially malicious software. While no scripts were explicitly extracted, the nature of the lure suggests a potential for further malicious activity upon clicking the link.

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/406889139/apk-coin-master-hack-game-hack In PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/free-roblox-toy-codes-2021_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/roblox-robloxian-high-school-tix-hack_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/www-roblox-hack-net_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/free-robux-groups-2021_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/minecraft-mac-free_GM479516143.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/roblox-sql-injection-hack_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/how-to-get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/free-roblox-adopt-me-pets_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/www-coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/static-moonactive-net-free-spins_GM406889139.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/free-x-club-roblox_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/free-roblox-account-2021-december_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-with-winrar-on-windows-10_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/free-roblox-faces-2021_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-free-robux-2021_GM431946152.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_002_off0000325c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x325C 23004 bytes
SHA-256: dfa4cfa35b33e24c679e728041cf6a82ee1ff83ea878910896c14b5e6d7bc2eb
font_01_sfnt_off00006612.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6612 18180 bytes
SHA-256: 02092733737bc01a074e4b086c3b9816d726ecd0acc13f0522c2cc892addd8db

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