Malicious PDF — malware analysis report

Static analysis result for SHA-256 447ad8d1842e6902…

MALICIOUS

PDF

35.0 KB Created: 2021-06-28 22:49:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 927e172ca889e178d109e916f5488e7e SHA-1: 278ac39a470907f11871b0e148cb8bc5133e27de SHA-256: 447ad8d1842e690228db11cba8797b25ab837dac9d776d6ad78c37e450f4b195
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links that lead to a known malicious redirector infrastructure, specifically advertising game hacks and generators. The document body and embedded URLs reinforce this lure, aiming to trick users into visiting potentially harmful sites. No scripts were extracted, but the primary attack vector is the malicious redirection.

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-phantom-forces-hack-2021-game-hack In PDF document text
    • https://alisa.com.tw/upload/files/what-is-the-best-looking-thing-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/dlc-script-hack-roblox_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/no-human-verification_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/free-spins-and-coins-blogspot-coin-master_GM406889139.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/free-robux-now_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/blox-land-where-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/roblox-speed-race-hack_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/wwwhaktutsin-2021-08-coinmasterfreespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/coin-master-extra-spins_GM406889139.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/free-games-like-minecraft-that-arnt-roblox_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/how-to-earn-free-robux-with-prood_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/gta-5-roblox-money-hack_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_off0000314b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x314B 21996 bytes
SHA-256: ea3d564f4b034722b743200f0957ed6b15b29e40c6eba06ccd54841406e54fe0
font_01_sfnt_off0000618f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x618F 19908 bytes
SHA-256: aeadd48193d31bbb5d0777e0662a7a8d4daf80376e537717804f5a7590faac6d

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