Malicious PDF — malware analysis report

Static analysis result for SHA-256 f14c2956d86872ce…

MALICIOUS

PDF

41.9 KB Created: 2021-05-25 06:31:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 5cae114d44fb58879dd46b8b03e54b96 SHA-1: dda1c2570821019cc02d4ad6bcdd00545bbb5339 SHA-256: f14c2956d86872ce7f08dad38305d4ce3f4ca06bb25a3d0ad8bb3be4fd19824b
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 0.7527

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/479516143/can-you-get-minecraft-for-free-game-hack PDF link annotation
    • http://digilib.akamigas.ac.id/akamigaslib/repository/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
    • http://digilib.akamigas.ac.id/akamigaslib/repository/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://digilib.akamigas.ac.id/akamigaslib/repository/free-tiktok-likes-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • http://digilib.akamigas.ac.id/akamigaslib/repository/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://digilib.akamigas.ac.id/akamigaslib/repository/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000366f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x366F 29120 bytes
SHA-256: 8dbfe0913d7f62241464c561e9b36b60c7709cf55d968466b2dea5b126c858e0
font_01_sfnt_off0000792c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x792C 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off0000833b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x833B 18012 bytes
SHA-256: 86c2b624a8a37ca41486e489d8c9cfdbe0e5db220f130324253b481d58b189c6

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