Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb7689b02cc45e11…

MALICIOUS

PDF

33.8 KB Created: 2021-06-29 06:11:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: c9ce337deb10bf01668486d888c25b0c SHA-1: a9ad42fc16ba32a9dd93ef57483cbde5fddcbe73 SHA-256: fb7689b02cc45e11c38816e27ed7cfa7c93c58e4a34b4643a8be4ec8f6295ec0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors, specifically advertising game hacks and generators for popular games like Roblox. The document body and heuristics confirm the intent is to lure users to click these links, likely leading to further malicious content or exploits. The ML classifier also strongly indicated maliciousness.

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/www-hack-roblox-online-game-hack In PDF document text
    • http://elearnfactory.com/images/download-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://elearnfactory.com/images/free-cracked-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://elearnfactory.com/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://elearnfactory.com/images/free-boho-salon-roblox-application_GM431946152.pdfIn PDF document text
    • http://elearnfactory.com/images/find-the-domo-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://elearnfactory.com/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://elearnfactory.com/images/mcpe-master-hack-coin-apk_GM406889139.pdfIn PDF document text
    • http://elearnfactory.com/images/roblox-good-hacks_GM431946152.pdfIn PDF document text
    • http://elearnfactory.com/images/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://elearnfactory.com/images/coin-master-free-spin-link-today-download_GM406889139.pdfIn PDF document text
    • http://elearnfactory.com/images/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elearnfactory.com/images/roblox-cheat-engine-64-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://elearnfactory.com/images/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://elearnfactory.com/images/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://elearnfactory.com/images/someone-hacked-my-roblox-account-took-all-my-robux_GM431946152.pdfIn PDF document text
    • http://elearnfactory.com/images/free-tiktok-fans-hack_GM835599320.pdfIn PDF document text
    • http://elearnfactory.com/images/galaxy-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elearnfactory.com/images/coin-master-free-spins-link-2021-no-verification_GM406889139.pdfIn PDF document text
    • http://elearnfactory.com/images/how-to-hack-on-vehile-simualotor-roblox_GM431946152.pdfIn PDF document text
    • http://elearnfactory.com/images/free-robux-clothes_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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_off00002e05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E05 21976 bytes
SHA-256: 4950951814fa5b402b78514d7a24773f9b8384e8efbc678410fc68ecc15f45f3
font_01_sfnt_off00005ea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA0 19136 bytes
SHA-256: 7b2b2a241bb1cdb1e90a9dca0f670cb5a5a6054e5735d25662f8ab3e36299804

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