Malicious PDF — malware analysis report

Static analysis result for SHA-256 1397377877a8e16b…

MALICIOUS

PDF

42.2 KB Created: 2021-04-27 20:35:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7adbb4e834803499c7f15f312fe15afc SHA-1: 1e58c5ed454cb1213d1b8ded87da7df4f6a9edc1 SHA-256: 1397377877a8e16b264c4713e664e8017d0f753fd286ab349f5b370b5252c1ea
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 0.9941

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/hack-into-anyones-roblox-account-to-steal-their-robux-game-hack PDF link annotation
    • https://lib-stie.yai.ac.id/repository/roblox-obby-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/como-hackear-roblox-admin.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-hair-roblox-boy.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-lumber-tycoon-2-whitelist-hack-script.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-new-free-hairs.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/epic-mini-games-cheats-on-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-make-an-audio-on-roblox-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-robux-2021-fast-and-easy.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-hack-robux-generador.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-bubble-gum-simulator-hack-script.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 3

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_off000045d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45D2 26640 bytes
SHA-256: 78b6f0d4cd41318ccc45a7f4d21193ade8abbb002fd77588557eef55b3a0faa8
font_01_sfnt_off00008170.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8170 18892 bytes
SHA-256: e56e5789a08cc511d4d8114fbb971cc43c76a1e9874ae3c09430953b3343376a

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