Malicious PDF — malware analysis report

Static analysis result for SHA-256 3779d30626a902cb…

MALICIOUS

PDF

34.7 KB Created: 2021-06-30 15:28:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d0faae3357bdc8f789f0e5d3eed40745 SHA-1: 483481c670b21de8466a9dc22ea23afaaa59194e SHA-256: 3779d30626a902cbb3850438fbccac7ddd78299b4f6e3f418b79bf6c32e0d0b3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game currency ('Robux') and game hacks, as indicated by the document body and heuristic firings like PDF_GAME_HACK_REDIRECT_LURE. It contains embedded URLs that point to a known malicious redirector infrastructure, designed to lead users to potentially harmful content. The primary purpose appears to be directing users to malicious websites under the guise of providing game-related benefits.

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/pokediger1-free-robux-game-hack In PDF document text
    • http://library.acehresearch.org/repository/how-to-get-free-robux-2021-working-august-2021_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-daily-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/noob-vs-pro-vs-hacker-vs-god-w-roblox_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-builders-club-free-trial-2021_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-skin-bundles-roblox_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/superhros-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-robux-mod_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-accounts-getting-hacked_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/lemonade-roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/get-robux-easily-free_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/wurst-115-2_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/hack-avatar_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-catalog-free-items-2021_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/earn-robux-com_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-free-spin-no-offers_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-hack-spins-ios_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FDF 22316 bytes
SHA-256: 4096940890d5775db8f8f679f9bbf248f9a8d66a49c606198b9f57c218967f40
font_01_sfnt_off0000616b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616B 19440 bytes
SHA-256: 088c7a31224844455f868eb35a72b348e6e67cecb4783877823289d80059d4d9

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