Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddcf9d88e849953c…

MALICIOUS

PDF

51.1 KB Created: 2021-06-11 05:26:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 55f1fce0d26645e7c07c6f138282cce0 SHA-1: 20e96c85be92af212a8008ffd8cd8b9ec126304f SHA-256: ddcf9d88e849953c651788fd83b597639a5ec25d3742d2382a606998b9263e58
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 0.9713

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.tw/app/431946152/how-to-get-robux-for-free-sites-game-hack PDF link annotation
    • http://mycookingpot.com/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://mycookingpot.com/images/freer-tiktok_GM835599320.pdfIn PDF document text
    • http://mycookingpot.com/images/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://mycookingpot.com/images/free-minecraft-coins_GM479516143.pdfIn PDF document text
    • http://mycookingpot.com/images/coin-master-hack-game-download-mod-apk_GM406889139.pdfIn PDF document text
    • http://mycookingpot.com/images/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • http://mycookingpot.com/images/coin-master-hack-2021-without-human-verification_GM406889139.pdfIn PDF document text
    • http://mycookingpot.com/images/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • http://mycookingpot.com/images/free-robux-means_GM431946152.pdfIn PDF document text
    • http://mycookingpot.com/images/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://mycookingpot.com/images/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://mycookingpot.com/images/hackear-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://mycookingpot.com/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://mycookingpot.com/images/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • http://mycookingpot.com/images/how-to-get-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • http://mycookingpot.com/images/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://mycookingpot.com/images/how-to-download-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
    • http://mycookingpot.com/images/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://mycookingpot.com/images/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://mycookingpot.com/images/best-minecraft-hacks_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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000051cb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51CB 25172 bytes
SHA-256: 5a9aedc6c1674912dd7fa48be2770d81d250e88fbdcd7ed93e1d7e574b382873
font_01_sfnt_off00008a73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A73 2892 bytes
SHA-256: c2578a292634a901613c1dd9f9883dd4930e6811e59ae03d696f263e56ea17b4
font_02_sfnt_off00009458.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9458 6636 bytes
SHA-256: 62075f0fe13502d46afb6e55e83d440c29ef4988399537df1f86e7653ce3b744
font_03_sfnt_off0000a465.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA465 18404 bytes
SHA-256: a836294368a8996d54848e92612888732d822a8abd27a3241869a694280f44be

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