Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c4ce0546dab5c6a…

MALICIOUS

PDF

41.5 KB Created: 2021-05-10 18:37:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 61008570336c287b552d9b141d019d2b SHA-1: 016983223c2dbd93895e1fa917b7f034b00c8083 SHA-256: 1c4ce0546dab5c6a235f16325f9ce0e3024e369e675757ba21c9022e2a4463d3
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 0.9971

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 https://netcdn.xyz/app/406889139/free-spins-for-coin-master-that-work-game-hack PDF link annotation
    • http://subarulegacy.com/images/free-robux-scam_GM431946152.pdfIn PDF document text
    • http://subarulegacy.com/images/coin-master-free-spins-and-cards_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/coin-master-free-spins-ios_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/coin-master-hack-mod-apk_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/cm-spin-link_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/coin-master-free-account_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/coin-master-hack-lost-world-2021-com_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://subarulegacy.com/images/coin-master-attack-hack_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://subarulegacy.com/images/coin-master-hack-tool-access-online-generator_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://subarulegacy.com/images/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/how-do-you-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://subarulegacy.com/images/free-links-coin-master_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
stream_003_off0000441f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x441F 26892 bytes
SHA-256: 8c2d20dc1152283506089974ba909e49fd223472103be7cbd8e0316696618ac3
font_01_sfnt_off00007fbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FBF 18420 bytes
SHA-256: 38941df2f255dbbeb7e8f4cd39caefbe857da85da1c5ae5f328b1c0cb4bd120e

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