Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a235531367e9b42…

MALICIOUS

PDF

44.3 KB Created: 2021-05-14 08:40:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 53c988ead28adc2763ae3fb4bd4f93e1 SHA-1: 035d9c3472faf242151094d2b26741c4f424d16f SHA-256: 6a235531367e9b42e3994ed5d9781e0939a8365b7bbc758dadd6938236f1235d
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 0.9648

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-hack-tool-v1-9-download-free-pc-game-hack PDF link annotation
    • http://moneymaker-gold.de/files/free-roblox-scripts_GM431946152.pdfIn PDF document text
    • http://moneymaker-gold.de/files/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/coin-master-hack-2021-without-verification_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • http://moneymaker-gold.de/files/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/code-free-robux_GM431946152.pdfIn PDF document text
    • http://moneymaker-gold.de/files/free-robux-ad_GM431946152.pdfIn PDF document text
    • http://moneymaker-gold.de/files/coin-master-spin-link-free-download_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://moneymaker-gold.de/files/20-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://moneymaker-gold.de/files/coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/impact-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://moneymaker-gold.de/files/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/coin-master-time-speed-hack_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/robux-free-co_GM431946152.pdfIn PDF document text
    • http://moneymaker-gold.de/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://moneymaker-gold.de/files/how-to-get-free-robux-hack-2021_GM431946152.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_003_off000046a4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46A4 24340 bytes
SHA-256: fc16d66d6a9e0c320e7bb9b5adf9554e8b9cc381fa4d6c1a5858e92fe7747ffa
font_01_sfnt_off00007e9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E9E 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off0000884f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x884F 19016 bytes
SHA-256: 72463d413271541d222c1197f8f9a8edc1a249d3ebb9d07bd42a16f0c907e414

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