Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1d5ddd5e7633631…

MALICIOUS

PDF

41.7 KB Created: 2021-05-16 00:03:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e00f9aa1e7042fcc4ea77f262620a2a0 SHA-1: da8be6a079a760edc76230ddfebd53c848c76ffe SHA-256: a1d5ddd5e7633631cec1e3c2bf6c407c08a052a7d5ed3ae2719b2a0016391651
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/coin-master-free-cards-game-hack PDF link annotation
    • http://domaizdereva24.ru/images/coin-master-cards-for-free_GM406889139.pdfIn PDF document text
    • http://domaizdereva24.ru/images/coin-master_GM406889139.pdfIn PDF document text
    • http://domaizdereva24.ru/images/earn-points-for-robux_GM431946152.pdfIn PDF document text
    • http://domaizdereva24.ru/images/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • http://domaizdereva24.ru/images/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://domaizdereva24.ru/images/coin-master-heaven-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://domaizdereva24.ru/images/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
    • http://domaizdereva24.ru/images/coin-master-hack-online-generator-without-human-verification_GM406889139.pdfIn PDF document text
    • http://domaizdereva24.ru/images/download-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://domaizdereva24.ru/images/roblox-a_GM431946152.pdfIn PDF document text
    • http://domaizdereva24.ru/images/minecraft-free-education_GM479516143.pdfIn PDF document text
    • http://domaizdereva24.ru/images/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://domaizdereva24.ru/images/cmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://domaizdereva24.ru/images/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • http://domaizdereva24.ru/images/coinmaster-spins_GM406889139.pdfIn PDF document text
    • http://domaizdereva24.ru/images/how-to-download-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • http://domaizdereva24.ru/images/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • http://domaizdereva24.ru/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://domaizdereva24.ru/images/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://domaizdereva24.ru/images/coin-master-hack-tool-pc-download_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_off00004908.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4908 24864 bytes
SHA-256: ea085bec460e0a6ad981220f3eabf08c42a97cc5cb91155b9b101e167812c3d3
font_01_sfnt_off000081e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81E8 17884 bytes
SHA-256: dce98ab1a9f6331dfaabbdd57dacdba92c66b57249d10e9c2a1df39138c2a47b

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