Malicious PDF — malware analysis report

Static analysis result for SHA-256 48878b3c8bb8166d…

MALICIOUS

PDF

45.9 KB Created: 2021-05-11 04:00:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 02ac1e7ca4ffd16984132d154d28b0e8 SHA-1: 1a368c8f3325d4fcdefba86d419e0ce0cc5c33f1 SHA-256: 48878b3c8bb8166db0ab371a9343032b25625f67939873727af7126546b721a0
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 0.9432

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/431946152/how-to-get-free-robux-without-human-verification-game-hack PDF link annotation
    • https://www.liputanbali.com/assets/CKImages/files/coin-master-hack-xyz-apk-download_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/can-you-earn-robux_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/how-to-get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/free-coins_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/coin-master-twitter-free-spins_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/coin-master-free-food_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/free-spins-for-coin-masters_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/master-coin-hack-app_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/how-to-hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/coin-master-free-gold-cards_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A30 26048 bytes
SHA-256: de5d8d329edb7b598c1b634c756ecc28768582c6916096822968760b67bcd49a
font_01_sfnt_off0000828b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x828B 3120 bytes
SHA-256: 49734f51977507cba6bc8d3ad0cee0363aa119856db094427deb9cf565bb7bca
font_02_sfnt_off00008d9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D9E 19388 bytes
SHA-256: c7994a70f951e7a274445218605a0e5dad46067da7d3a89c75279f94e76bcfde

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