Malicious PDF — malware analysis report

Static analysis result for SHA-256 311e49c910e3b715…

MALICIOUS

PDF

32.6 KB Created: 2021-06-17 19:56:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: b60825faff40f211781f8fa2bc81e5ba SHA-1: 2eea0d2518e353b465caef59e31bc1ff7428295b SHA-256: 311e49c910e3b71534907aca7193ab749a1e4e6d54329a6d0701d481a9d01285
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector, that promise free items or hacks for popular games. The document body explicitly contains a call to action to access a 'Roblox Generator' via a URL. This indicates a social engineering lure designed to trick users into visiting malicious sites, likely for credential harvesting or malware delivery.

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/free-event-items-roblox-game-hack In PDF document text
    • http://www.compusiteinc.com/images/coin-master-spins-gratis_GM406889139.pdfIn PDF document text
    • http://www.compusiteinc.com/images/irobux-robux-cheat_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/coin-master-free-gift-link-2021_GM406889139.pdfIn PDF document text
    • http://www.compusiteinc.com/images/roblox-fe-hacks_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/coin-master-connection-lost-hack_GM406889139.pdfIn PDF document text
    • http://www.compusiteinc.com/images/free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://www.compusiteinc.com/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/roblox-boxing-game-hack_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/coin-master-hack-spins-and-coins-unlimited-free-download_GM406889139.pdfIn PDF document text
    • http://www.compusiteinc.com/images/ways-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://www.compusiteinc.com/images/did-tofuu-het-roblox-hacked_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/minecraft-free-online_GM479516143.pdfIn PDF document text
    • http://www.compusiteinc.com/images/free-roblox-promo-codes-2021-august_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/how-do-you-get-admin-by-hacking-roblox_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/how-to-download-minecraft-java-edition-for-free_GM479516143.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
stream_001_off00002a76.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A76 21912 bytes
SHA-256: df963dce0116d709bcb52274352b5f53d660beb201db3fa44dec80dc75d7ebb8
font_01_sfnt_off00005ad6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AD6 18944 bytes
SHA-256: 5c955102abfc5f545b97d67eb861a86ddd0cc442c5e2b86503bf6b9da1e3fd61

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