Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec9dcc2d4876deb1…

MALICIOUS

PDF

43.9 KB Created: 2021-05-16 16:10:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 0125ce08a44a74992e59ae2ba5ff58a7 SHA-1: 4029a92358db3f03f18eb614e7e32a75f2629437 SHA-256: ec9dcc2d4876deb1c3035f3ffaec31e1c90090418a893e933b0343ab17ec9be2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs that lure users with "game hack" and "free spins" promises, redirecting to a malicious domain. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs suggests an attempt to download or redirect to a secondary payload. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-50-spin-link-game-hack PDF link annotation
    • http://www.arredifunebri.com/images/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/code-free-robux_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/coin-master-how-to-get-japan-sushi-card-free_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/free-robux-today_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/how-to-make-a-group-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/is-minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://www.arredifunebri.com/images/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • http://www.arredifunebri.com/images/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • http://www.arredifunebri.com/images/coin-master-free-spins-and-coins-group_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/rbx-place-free-robux_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/free-money-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/roblox-hack-unlimited-robux_GM431946152.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_off00004b15.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B15 29700 bytes
SHA-256: 28db9a77a53983482f1785f96fdbb4d731ac6f1831565878e91d61342849bf5c
font_01_sfnt_off00008991.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8991 18196 bytes
SHA-256: 1133898f442132de6b3babc63911783103e8ae6e1bd19e5d3637905fb0848ccb

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