Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdb5766b0465526f…

MALICIOUS

PDF

35.1 KB Created: 2021-06-19 03:52:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 22c09a50037b843e08c67c6c28ed4956 SHA-1: 96eb1d4067b5d9d41f53ccf1d38d13820bcb125d SHA-256: bdb5766b0465526fc77e1926f7dad9ac20e3293c305cdf6ec703707a50a99dde
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 0.9980

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/como-hackear-roblox-apk-mediafire-game-hack PDF link annotation
    • https://inspiration-modellbau.de/images/comandos-de-hacker-roblox_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/roblox-how-to-get-free-clothes_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/coin-master-hack-software_GM406889139.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/blackout-hack-roblox-download_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/free-promo-codes-list-roblox_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-to-be-headless-in-roblox-2021-free_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/hack-de-robux-2021-julio_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/coin-master-home_GM406889139.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/free-robux-inspect-element-2021-pastebin_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/cheat-dungeon-quest-roblox-20s_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/roblox-teleport-script-hack_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/fondo-free-robux_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/how-to-create-a-website-like-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/roblox-catalog-free-stuff_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/t-t-p-s-web-roblox-com-catalog-owotshirtfree_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/coin-master-hack-apk-35-33_GM406889139.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/free-hack-tool-robux_GM431946152.pdfIn PDF document text
    • https://inspiration-modellbau.de/images/roblox-tickets-hack_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
stream_002_off00002ee0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2EE0 23208 bytes
SHA-256: f1c902f10fbb8d56d44526fe035d05ca04273a3cd89aca48801350079c48d10c
font_01_sfnt_off00006377.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6377 19396 bytes
SHA-256: 9d9cb4df81523969a0292e2a9717999067ed7efaf3df0bb81ac8ad8f0ffa4fee