Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c4567c6d4607bdc…

MALICIOUS

PDF

32.5 KB Created: 2021-07-24 23:03:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 81ab39f5945269be61b7133b760d4cda SHA-1: 3affb55d3d317e7ab4067425b2178b9cc731ae8e SHA-256: 7c4567c6d4607bdcf9140a346ab4195d4c854f1e3a4d0baa441748087ec00394
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game currency and hacks, directing users to external URLs. The presence of multiple links to similar content suggests a phishing or scam campaign. While no scripts were directly extracted, the PDF structure and embedded links indicate a potential for malicious redirection or download.

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/431946152/how-do-u-get-free-robux-game-hack PDF link annotation
    • http://beagles-of-harmony.de/images/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/how-to-get-verified-on-tiktok-for-free-2021_GM835599320.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/how-to-get-minecraft-bedrock-edition-for-free_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_off0000287a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x287A 22872 bytes
SHA-256: f4e9b68b11990236d870bf17161be0ccb265e2204a1f23669b69115c9324e272
font_01_sfnt_off00005bda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BDA 18636 bytes
SHA-256: ab6f51fdb1eed883fd21dff3bd0336e3a1b816e6c21a8924207bfe84ed9a007e

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