Malicious PDF — malware analysis report

Static analysis result for SHA-256 caf60bb86895dd45…

MALICIOUS

PDF

34.5 KB Created: 2021-07-19 13:52:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 5a75f63d20eae3ed333f0c0c09b49289 SHA-1: ab6da7e07d10f7f3ae42c0047f44d3fd477ec134 SHA-256: caf60bb86895dd450c9ff8c0af270b76594cd2b784aa6716284d694df89b1724
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/431946152/how-to-get-free-robux-2021-easy-game-hack PDF link annotation
    • http://schmittmusik.de/images/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://schmittmusik.de/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://schmittmusik.de/images/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://schmittmusik.de/images/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://schmittmusik.de/images/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://schmittmusik.de/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://schmittmusik.de/images/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://schmittmusik.de/images/how-to-get-free-tiktok-fans-without-human-verification_GM835599320.pdfIn PDF document text
    • http://schmittmusik.de/images/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://schmittmusik.de/images/is-minecraft-bedrock-edition-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
font_00_sfnt_off00002ce5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE5 23240 bytes
SHA-256: f8f10f5067ed755e763f69400066a6cd03b11f346f0ecad1da19fa1818a94551
font_01_sfnt_off00006182.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6182 19276 bytes
SHA-256: 7a8e0f0464ba8cbc7cdc9f98d62ba35f68a868c8d4001ab84d520415c4362a38

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