Malicious PDF — malware analysis report

Static analysis result for SHA-256 69621a17cbdace40…

MALICIOUS

PDF

45.2 KB Created: 2021-04-23 16:20:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 7e9c31002694dd554f996549209ced74 SHA-1: cdea4ac3cd3a7925ee6955447a5060693b9e6e2d SHA-256: 69621a17cbdace4073254143f89d3e3dcbf48f745c2336d4aff8ac24e62cc704
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document uses social engineering tactics, impersonating Amazon and offering a 'Roblox Lumber Tycoon Hack' to trick users into clicking a malicious link. The link leads to a domain associated with game hacks and potentially malware distribution. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a phishing or malware download attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9858

Heuristics 6

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netsecure.top/app/431946152/roblox-lumber-tycoon-hack-lua-c-game-hack.
  • 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://netsecure.top/app/431946152/roblox-lumber-tycoon-hack-lua-c-game-hack PDF link annotation
    • https://alazhar-university.ac.id/aplikasi/perpustakaan/repository/how-to-catch-a-hacker-on-roblox.pdfIn PDF document text
    • https://alazhar-university.ac.id/aplikasi/perpustakaan/repository/roblox-how-to-get-elite-game-pass-free.pdfIn PDF document text
    • https://alazhar-university.ac.id/aplikasi/perpustakaan/repository/medieval-hood-of-mystery-roblox-free.pdfIn PDF document text
    • https://alazhar-university.ac.id/aplikasi/perpustakaan/repository/cerberus-hacking-roblox.pdfIn PDF document text
    • https://alazhar-university.ac.id/aplikasi/perpustakaan/repository/roblox-ipad-robux-hack.pdfIn PDF document text
    • https://alazhar-university.ac.id/aplikasi/perpustakaan/repository/how-to-hack-roblox-in-poison-life.pdfIn PDF document text
    • https://alazhar-university.ac.id/aplikasi/perpustakaan/repository/people-on-roblox-who-give-free-things.pdfIn PDF document text
    • https://alazhar-university.ac.id/aplikasi/perpustakaan/repository/how-to-get-free-robux-no-survey-no-offers.pdfIn PDF document text
    • https://alazhar-university.ac.id/aplikasi/perpustakaan/repository/fun-robux-hack.pdfIn PDF document text
    • https://alazhar-university.ac.id/aplikasi/perpustakaan/repository/free-roblox-codes-from-the-toys.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000043bc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x43BC 28240 bytes
SHA-256: eec95aec03de7c8a97fc3d4b881c9fbd31245e38484570dd30f9b9180da88489
font_01_sfnt_off000083b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83B9 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off00008d69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D69 18760 bytes
SHA-256: 19976d0b6c1004c990ea317119c545bb5f9ed2ffdf1712014dcb1bb5f176702e

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