Malicious PDF — malware analysis report

Static analysis result for SHA-256 416ba9c334aefbaf…

MALICIOUS

PDF

35.1 KB Created: 2021-07-04 19:35:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 338a6986880d2a19608e5d5b13bcbc8e SHA-1: a9a3e9fe54d936577ceb63bb5b9a53ce739e84f6 SHA-256: 416ba9c334aefbaf3e934efdc99c0b05f1873c6919390d0ab12c91bc8dd3ef31
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link that redirects to malicious infrastructure, which in turn hosts other malicious PDFs. The document body and extracted URLs suggest a lure related to game hacks and generators, aiming to trick users into downloading further malicious content. The presence of JavaScript-related filenames in the URLs indicates a potential for client-side exploitation.

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.tw/app/406889139/coin-master-free-download-app-game-hack In PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-robux-hack-javascript_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-free-spain_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-hack-roblox-accounts-using-inspect-element-2021_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/afk-hacker-roblox_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-hack-for-money-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-hack-denis-roblox-acc_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-free-bc-codes_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/download-free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-roblox-accounts-rich-2021_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-phantom-forces-cr-cheat-engine_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-tiktok-app_GM835599320.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-apk-hack_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_off00003209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3209 22792 bytes
SHA-256: 9832cafeff0b46f92d43297b52fdb8e9098e861d6b0bc90cc74d1caae6f39d80
font_01_sfnt_off0000652a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x652A 18756 bytes
SHA-256: 2166f25561c4373c6e80d06891fd885867d3a729d1a06b695fec64284d0c2295

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