Malicious PDF — malware analysis report

Static analysis result for SHA-256 308e18641f80e94e…

MALICIOUS

PDF

32.8 KB Created: 2021-07-03 16:59:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 61baef386b7d77a27eadadcc45c47572 SHA-1: 4dc798e11aa7307ab1a5356c34a8e8d87eed92f7 SHA-256: 308e18641f80e94e04da17f2c891c3264851d5dbd4b3460735d4ddb98dfd5989
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 0.9824

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.tw/app/431946152/roblox-hack-client-game-hack PDF link annotation
    • http://elib-sd.msj.mis.sch.id/library/repository/roblox-hack-week-mirror_GM431946152.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/apocalypse-rising-roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/ww-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/how-to-get-free-pet-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/roblox-apk-hack-ios_GM431946152.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/roblox-download-apk-free_GM431946152.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/tiktok-follower-bot-free_GM835599320.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/how-to-get-free-robux-without-doing-a-human-verification_GM431946152.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/how-to-get-free-admin-commands-in-roblox_GM431946152.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/hack-roblox-robux-apk_GM431946152.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/hacks-for-da-hood-roblox_GM431946152.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/spring-flowers-hair-roblox-free_GM431946152.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/roblox-gift-card-free-codes_GM431946152.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/roblox-transparent-shirt-free-shipping_GM431946152.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/synapse-roblox-hack-price_GM431946152.pdfIn PDF document text
    • http://elib-sd.msj.mis.sch.id/library/repository/unpatchable-robux-hack-robuxian_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_off00002b12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B12 22032 bytes
SHA-256: 5a3f4e8140a952794902c5c34f2d7844ae166d75f3036ac1129023d8daf0e42e
font_01_sfnt_off00005bbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BBE 18880 bytes
SHA-256: aff42d3783a335d76f19585087556b5fc01da002b55490b257e48f03a6311b61

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