Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e0ed61db6d073d8…

MALICIOUS

PDF

32.5 KB Created: 2021-07-19 07:59:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: d73442d199bf6862639ffc6211b04a20 SHA-1: 7efe7018f933d758c1163408a4cf4056d58f283a SHA-256: 7e0ed61db6d073d87bb831a30ac5d337ed9235f0f01f7e905e901c100975d9f0
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 0.9900

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 http://netcdn.tw/app/479516143/is-minecraft-free-on-ps4-game-hack PDF link annotation
    • http://jenne-technik.de/images/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://jenne-technik.de/images/free-tiktok-followers-no-survey_GM835599320.pdfIn PDF document text
    • http://jenne-technik.de/images/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://jenne-technik.de/images/how-to-get-free-tiktok-followers-without-human-verification_GM835599320.pdfIn PDF document text
    • http://jenne-technik.de/images/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
    • http://jenne-technik.de/images/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://jenne-technik.de/images/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • http://jenne-technik.de/images/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://jenne-technik.de/images/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://jenne-technik.de/images/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002bf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF9 22644 bytes
SHA-256: d955aebe26804409f80e99d99a9654841a665c4c46b10c67a8dae5803d79262f
font_01_sfnt_off00005eaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EAF 17784 bytes
SHA-256: 6bdb79261e2e18097973e8a24e5f78e76fe24063bf06913bb75cbf544b02b3c5

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