Malicious PDF — malware analysis report

Static analysis result for SHA-256 101a1dd319670219…

MALICIOUS

PDF

43.8 KB Created: 2021-06-03 05:09:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 26d3cf548b50b88cce83f16b6e442c74 SHA-1: 9efcb503b4de8db7d9c515bb05858120010f9315 SHA-256: 101a1dd3196702192ed825b213f390a6864a40acec78d56cfb05ac249e0a9f77
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 0.9865

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.online/app/406889139/coin-master-coins-hack-game-hack PDF link annotation
    • http://library.stieyapan.ac.id//repository/10-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/roblox-earn-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/se-puede-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-hack-account_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-online-hack-generator_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/how-to-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/can-you-earn-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-download-hack-ios_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-game-free-play-online_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/wurst-client-18-9_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-hack-spins-and-coins-unlimited-free_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_004_off0000514e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x514E 24740 bytes
SHA-256: 7aff7c45793435fe6c1734bfbd314247209f154ba5040b5918d4c61a83941abc
font_01_sfnt_off00008a19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A19 17716 bytes
SHA-256: c15a8689411d8cca9ab0759ab4c496fe9b4353d676dd738e300719e9588112ed

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