Malicious PDF — malware analysis report

Static analysis result for SHA-256 733187cfa99a1134…

MALICIOUS

PDF

47.2 KB Created: 2021-06-03 13:32:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b9044f469044277ca2946c90b280b80f SHA-1: dec605c2d8945d4e5769cd48cbd937113993d2a9 SHA-256: 733187cfa99a1134ac10272275f8e833e9c39fab53c4f4a7f4e61cecf55a3038
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a lure related to free game mods and generators, directing users to a URL that appears to be a redirector for malicious content. The ML classifier strongly flagged this PDF as malicious. The embedded URL and the heuristic firings indicate a social engineering tactic to entice users to visit a potentially harmful site, likely to download further malware or engage in credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.online/app/479516143/free-minecraft-mods-for-pc-game-hack PDF link annotation
    • http://www.perpus.stfm.ac.id/repository/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/coin-master-computer-hack_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/free-exploits-for-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-free-gift-link-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/www-coin-master-hack-com_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-tiradas-gratis-link_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/pokemon-go-free-quagsire_GM1094591345.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/roblox-imagine_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/coin-master-hacker-club_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/robux-generator-without-verification_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
stream_004_off0000559e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x559E 29000 bytes
SHA-256: 0ffcce77c15e50530fcbe6d8ce6210bafa72db430c6225d1104d7acd44165107
font_01_sfnt_off000096e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96E7 18040 bytes
SHA-256: 98ca37f528e173e3359a4657940ab6d639a5cfe7abb37ffdb24b1fbbd87b097e

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