Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ead44542a37559c…

MALICIOUS

PDF

47.1 KB Created: 2021-06-04 03:38:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 8e6b5a1f9f3ca425256f80e16db579d7 SHA-1: 647bc9882f949fbf06c98e774bb6599499455e3a SHA-256: 3ead44542a37559c77a8bf4d097524f98a3d4db7658af4ed24c59aa5cfb2db77
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to websites offering game hacks and generators, a common lure for phishing or malware distribution. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URIs and the nature of the lure suggest an attempt to trick users into downloading further malicious content or visiting a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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-400-spin-link-game-hack PDF link annotation
    • https://www.labdagatismk1pundong.com/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-get-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/fast-robux-online_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/easy-robux-generator_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-golden-cards-hack_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-spins-coin-master-2021-app_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-daily-spin-link_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-hack-without-verification-ios_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/minecraft-free-version-pc_GM479516143.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-cards-for-free_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/ways-to-earn-robux_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-spin-coin-master-game_GM406889139.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_004_off000050cc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50CC 25304 bytes
SHA-256: 1e4c8c0e5ff3b67860d1426848f9e1801793e7a385199dc31fe46adee62884c0
font_01_sfnt_off00008a62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A62 3204 bytes
SHA-256: b7fe42cb1da39e96c756399b3532633df029c1fbb3443b9e17d98df25c90dc65
font_02_sfnt_off00009566.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9566 18124 bytes
SHA-256: 2e62694bd2406c826cc87b3b16ab8edfdf3b59f55135debd3672f7e2598d1766

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