Malicious PDF — malware analysis report

Static analysis result for SHA-256 393afa7f95f36c3b…

MALICIOUS

PDF

33.4 KB Created: 2021-06-28 03:52:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3623e0f88b165b02cac685a1b5143e5b SHA-1: a25be275252987967db204d2e42d38be4300fc02 SHA-256: 393afa7f95f36c3b18434f02371e212daee7d57e08c6654deb2b2a97ffc84d05
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites that are flagged as malicious redirectors, specifically promoting "free generator / game hack" lures for popular games. The document body and extracted URLs strongly suggest a social engineering tactic to trick users into visiting these sites. While no scripts were explicitly extracted, the nature of the links and the heuristic firings indicate a high likelihood of leading to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/how-do-you-hack-peoples-account-on-roblox-game-hack In PDF document text
    • http://www.myresidence.lu/userfiles/files/roblox-players-for-free_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/coin-master-free-spins-link-no-verification_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/pubg-uc-vn_GM1330123889.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/dexen-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/robux-earning-websites_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/como-ser-hacker-en-roblox-atravesar-paredes_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/how-to-get-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/how-to-sell-shirts-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/minecraft-pe-server-hosting-free_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_off00002a84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A84 22332 bytes
SHA-256: 4ce34a0dc5a8bd67290522401fc3565d1089865c10de9168d170a0d3698447d9
font_01_sfnt_off00005bc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BC1 19724 bytes
SHA-256: 66fd2e88883d4472f3300ad0b1f3688a081ef4757c973d4bc87a6d2c7422c60d

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