Malicious PDF — malware analysis report

Static analysis result for SHA-256 05d2e7ad4dede6a4…

MALICIOUS

PDF

42.7 KB Created: 2021-05-11 13:05:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 665953edf435b3fd9efd6729f9129d1b SHA-1: 23678344201075fdd02c703b5208bf0bcc74cfbd SHA-256: 05d2e7ad4dede6a4d8ae14dd2b2003616ea1732f8895e6b0f9a3fef70fc8ae27
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 0.9971

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/game-coin-master-hack-game-hack PDF link annotation
    • http://promotion.si/images/coin-master-free-spins-link-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/como-hackear-el-juego-coin-master-en-espaol_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://promotion.si/images/free-unlimited-coin-master-online-tool_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/coin-master-unlimited-coins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/minecraft-bedrock-download-pc-free_GM479516143.pdfIn PDF document text
    • http://promotion.si/images/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • http://promotion.si/images/coin-master-hacks-xyz_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/how-to-get-free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/win-free-robux_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/aimbot-download-roblox_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/getrobux-ninja_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/robux-link_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/free-google-play-promo-codes-coin-master_GM406889139.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
stream_003_off0000467f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x467F 27648 bytes
SHA-256: fa2fd26b6d0231de92e71547ecb30524cbfd6d0f58bc61b8fb8beedfb762a0a3
font_01_sfnt_off000085ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85BA 17976 bytes
SHA-256: 206c578388b9bac3d1752862f80fd049ac7eba4f7fbaab7734ea75c2cf25eb07

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