Malicious PDF — malware analysis report

Static analysis result for SHA-256 18372dbe469e0189…

MALICIOUS

PDF

34.7 KB Created: 2021-06-29 14:39:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 00d949f6248aa0c81a7abe521876b608 SHA-1: 1ff074fc07fbcc02f04b424dfd48ce68fde943b7 SHA-256: 18372dbe469e0189b2415534ac2b55f714318f30ce88198078e576ecc523442b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to a known malicious redirector, masquerading as a generator for free game currency or hacks. The document body explicitly mentions 'Roblox Free Robux Hack 2021' and includes the primary redirector URL. The presence of these lures and the malicious infrastructure strongly suggests a phishing or scam attempt designed to lead users to potentially harmful content or further malware downloads.

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.co/app/431946152/roblox-free-robux-hack-2021-game-hack In PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/get-free-robux-legally_GM431946152.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/how-to-hack-get-crushed-by-a-speeding-wall-roblox_GM431946152.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/raindrop-hack-roblox_GM431946152.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/coin-master-guide-to-free-spins-and-rewards_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/legit-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/how-to-hack-on-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/https-roblox-free-robux-web-wordpress-com_GM431946152.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/coin-drop-master-free_GM406889139.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://mlc3.ma-alirsyad.sch.id/__statics/gudangsoal/files/roblox-hack-youtube-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
font_00_sfnt_off00003261.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3261 21528 bytes
SHA-256: 7ff692b720ff41073e70e24bd873402045d57fae870cef84f58cb6c98e803f50
font_01_sfnt_off00006172.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6172 19360 bytes
SHA-256: d7bc0ca4f49ead35c3fb11fd2336bab3d2bcb3672c72bc9ca3d1017e663b06e6

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