Malicious PDF — malware analysis report

Static analysis result for SHA-256 16ea0cdb15156acc…

MALICIOUS

PDF

33.6 KB Created: 2021-07-01 17:23:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 61e44c08d523162187b53275694ea876 SHA-1: c86b9a7087e064cca7361daf4d60d02947c5dee3 SHA-256: 16ea0cdb15156acc54d04f51d51cc1753cc5c4f3385b2475839062b3b7cf6e61
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to a known malicious infrastructure, masquerading as free game item generators. The heuristic firings indicate a malicious redirector link and a lure for game hacks, strongly suggesting a phishing or scam attempt. No scripts were extracted, but the document's structure and embedded URLs point towards a social engineering attack.

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-play-game-hack In PDF document text
    • http://tileworld.com.au/files/free-robux-apps-that-actually-work_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/e-free-roblox_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/free-coins_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • http://tileworld.com.au/files/roblox-freebies-robux-roblox-hack_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/how-to-get-free-robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/legit-coin-master-hack-october-2021_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/free-robux-roblox-music-id_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/minecraft-aimbot_GM479516143.pdfIn PDF document text
    • http://tileworld.com.au/files/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/code-free-robux_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/how-to-get-free-roblox-money_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_off00002d5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D5E 22136 bytes
SHA-256: 09a4d2cb1df1ce521f5e3fab5a1fe1dee46c05652d65116a39694441a73350c7
font_01_sfnt_off00005e82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E82 18984 bytes
SHA-256: c35af58ec1be6cea126a1986bf6375ff25a042e1cd070e849d6b37e85ec79a12

Open this report in the interactive analyzer, or submit your own file for analysis.