Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeae25bdf6c42318…

MALICIOUS

PDF

35.0 KB Created: 2021-06-20 00:19:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c8422a426f2878c877a073ae7b158883 SHA-1: 30b88ac8bcf4820e2330e74da2e56eacbbfe24a6 SHA-256: eeae25bdf6c4231846fa7003717218076e03f5982a85b2cb9f33b30ebe751409
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF document contains multiple links to known malicious redirectors and impersonates Microsoft to lure users into clicking on a 'free generator / game hack' for Roblox. The primary link, http://netcdn.co/app/431946152/roblox-free-2021-robux-game-hack, is associated with credential phishing and potentially malware distribution. No scripts were extracted, but the embedded URLs and the lure strongly suggest a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: http://netcdn.co/app/431946152/roblox-free-2021-robux-game-hack.
  • 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-2021-robux-game-hack In PDF document text
    • https://weddingcards-expert.tw/upload/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/roblox-games-com-free_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/is-roblox-free-on-ps4_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/juego-hackeado-de-coin-master_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/nonsensediamond-roblox-hack_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/coin-master-free-spins-april-2021_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/coin-master-free-spins-link-october-2021_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/pubg-uc-yatr_GM1330123889.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/free-robux-please_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/how-to-get-free-robux-hacks-2021_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/robux-hack-tools_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/coin-master-free-spin-link-today-2021_GM406889139.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_off000031ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31EF 22196 bytes
SHA-256: 477bca8eab24d335f9dcfd99072f93ec46e4cefa25ef889f9f6f39727c80f812
font_01_sfnt_off00006335.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6335 19192 bytes
SHA-256: a5a96290e4c76d04414f02fc4567f19337564a66b1ac17ab11373809f6351328

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