Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb6cd12e1503b8d3…

MALICIOUS

PDF

34.3 KB Created: 2021-06-25 07:13:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: cc6d6b7dc8dea2a6c2d7822f0c52bed3 SHA-1: 275529f56b98ad953d619c33807e4623473b8967 SHA-256: cb6cd12e1503b8d3997f0592ce78b599ad34f9020e555ffa56da787698b1a528
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/how-to-make-clothes-on-roblox-free-game-hack PDF link annotation
    • http://library.apsidoarjo.ac.id/repository/coinmasterfreespins_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-avatar-tester_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-send-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/como-tener-robux-gratis-hacks-2021-mayo_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-hack-spins-app_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-game-play-online-for-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/cool-kids-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/codes-for-roblox-tycoon-to-get-free-gems_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-free-chest-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/202100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-redeem-a-roblox-card-for-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/earnrobux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-can-i-get-free-robux-on-roblox_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_off00002f3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F3E 22088 bytes
SHA-256: a80d891e533530ead9e5e1ff1da2e9343cb2b7a477b53eba9ccd8e5f5e5471b3
font_01_sfnt_off00006016.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6016 19448 bytes
SHA-256: 9dcd38c3bfa925b4fffe2fc84a2c342eff495fa9f696769a8e9a966be5ac32b9

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