Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1a794e1e28dc9ba…

MALICIOUS

PDF

33.9 KB Created: 2021-06-26 03:30:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 65fc3c06a70f327e3cbe53494311dcf0 SHA-1: 22f8217997de0e551272843a649f6ecc6e6edbb3 SHA-256: a1a794e1e28dc9ba940a878028616de15a6ef5d51b73f3f35cffe53143ce1225
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/roblox-free-hats-glitch-game-hack PDF link annotation
    • https://www.liputanbali.com/assets/CKImages/files/free-robux-working_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/cheat-roblox-bubblegum-simulator_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/free-robux-reddit_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/ww-robux_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/coin-master-date-and-time-hack_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/how-to-get-free-clothes-on-roblox-without-bc-2021_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/hot-to-cheat-roblox_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/how-to-get-free-spins-in-coin-master_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-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/roblox-points_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/coin-master-free-spins-and-coins-haktuts_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/master-free-spin_GM406889139.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ebd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EBD 22080 bytes
SHA-256: 4e1c47919877abc078e4e2aeebb6fa23c2647c57b14b1f4fd86ece46e51cb9d7
font_01_sfnt_off00005f80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F80 19040 bytes
SHA-256: feaf20d5ef9248c0fe491ff585655228e30c141b3eae2e5dcf386a7a76cbb698

Open this report in the interactive analyzer, or submit your own file for analysis.