Malicious PDF — malware analysis report

Static analysis result for SHA-256 1610f98c221c5546…

MALICIOUS

PDF

33.3 KB Created: 2021-07-04 07:07:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7f17bf946a7a3108e4f2f72c3cdf07af SHA-1: 937559367b8e96a2108d32bb040436f3f6fe9362 SHA-256: 1610f98c221c5546e62470858223d683091063715ae79d6d4fccd8ab36807139
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-studio-free-robux-game-hack PDF link annotation
    • http://psikologi.unair.ac.id/digilib/repository/how-to-make-a-dll-hack-roblox_GM431946152.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/free-promo-codes-for-robux-2021_GM431946152.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/hack-jailbreak-roblox-2021-menu_GM431946152.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/free-gg-robux_GM431946152.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/how-to-hack-robux-on-pc-2021_GM431946152.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/bouton-free-robux_GM431946152.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/discord-free-robux-bot_GM431946152.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/roblox-teleport-hack-download_GM431946152.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/checker-script-hack-roblox_GM431946152.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/roblox-hacks-robux-2021_GM431946152.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/roblox-booga-booga-hack-download_GM431946152.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/easy-free-roblox-exploits_GM431946152.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/fnaf-rolelay-roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/como-ser-hacker-en-roblox-jailbreak-2021-mayo_GM431946152.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/roblox-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/hacks-for-roblox-219_GM431946152.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://psikologi.unair.ac.id/digilib/repository/hacker-robux-2021_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E82 21216 bytes
SHA-256: 9351450e673a3d531fe32ec930586cd89e0336d4c93d98cc3e9579e1236f8041
font_01_sfnt_off00005cb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB3 19188 bytes
SHA-256: a8f681c18c5380531c3743548279ef24b074491e5ef3cbdd9afbc7b3c7c74193

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