Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e238e3a2d948c3b…

MALICIOUS

PDF

34.1 KB Created: 2021-06-29 15:22:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 95ad86a6885c1d08930c6465161bdf11 SHA-1: 89ca0d238d7fd0dd0c39db5f3b9aa507048aa55c SHA-256: 8e238e3a2d948c3bcd81c6d48cd2331e18a3342125de46e37ca0ce327caf8420
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/free-robux-link-game-hack PDF link annotation
    • http://lib.smklabor.sch.id/repository/coin-master-download_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/counter-blox-roblox-offensive-hacks-2021-download_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-hack-apk-july-2021_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/pokemon-go-free-644_GM1094591345.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/minecraft-mod-menu_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-be-hacker-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-cheat-money-into-roblox-high-school_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/without-pokemon-go-free-download_GM1094591345.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-april-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-clothes-from-other-users-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/como-hackear-a-cualquier-jugadores-de-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/money-hack-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/minecraft-toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-cheat-in-roblox-got-talent_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-hacker-vs-pro_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-followers-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/hack-my-game-xyz-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/easy-hacks-roblox-download_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_off00002f53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F53 22108 bytes
SHA-256: 92db4b4c7745c9d562a64afde08eb302b88090e4f620eea0c8374a9b37075dc4
font_01_sfnt_off0000605a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x605A 19008 bytes
SHA-256: a11a737a93c2cddb47bbb5a91c346e1b782ee8df03973ee462993f1f8904f3c0

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