Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfc44359b5a34add…

MALICIOUS

PDF

34.4 KB Created: 2021-06-19 03:08:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: a346b32992af7e85b9f6207219a48e09 SHA-1: 267258f68f6b2b38fe703bcea986e5be9c16056d SHA-256: dfc44359b5a34addfa46b466320af999426f37f13ada9a9e5d11fe23e6ffc057
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of game hacks and free currency to entice users. It contains numerous embedded URLs, with a primary one pointing to a suspicious domain that likely serves as a redirector to malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the observed lure and URL patterns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.co/app/431946152/counter-blox-roblox-offensive-knife-hack-game-hack PDF link annotation
    • http://lamascheradiferro.dk/images/premium-software-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/best-free-hacked-client_GM479516143.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/free-robux-com_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/free-robux-picture_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/nelson-diamant-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/how-to-scam-on-roblox_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/roblox-hax_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/coin-master-free-spins-today-new_GM406889139.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/roblox-sharkbite-free-submarine-script_GM431946152.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_off00003093.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3093 22160 bytes
SHA-256: bbe131e586264ed1fcf8707460689b5397ad6233c55627f466f326b4f88a70c2
font_01_sfnt_off0000618f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x618F 18948 bytes
SHA-256: 3cb8f82aec3ec52bc58cbff0df5b6d3f8da7eb1a1c95fea27e5ee6d71a58fbd1