Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9f16b848d7d5c39…

MALICIOUS

PDF

35.2 KB Created: 2021-06-30 18:35:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: cae4bb6e939d57518d248cf39c5beb9b SHA-1: 2a3efab3a9b3188d517f1d0d3de57b1b892b7989 SHA-256: d9f16b848d7d5c3972ee02500ff2cd69a8cdaddffc0d6d38561d3d9e8a9d4694
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-confidence heuristic indicating it links to a game hack redirector, specifically targeting users interested in 'Coin Master' and 'Roblox' cheats. The embedded URL, http://netcdn.co/app/406889139/today-free-spin-coin-master-game-hack, is the primary indicator of malicious intent. While no scripts were extracted, the document's structure and linked content suggest a lure to a malicious website or a download server.

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/406889139/today-free-spin-coin-master-game-hack PDF link annotation
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/roblox-hackers-list_GM431946152.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/coin-master-link-for-spins_GM406889139.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/roblox-promo-codes-2021-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/free-accessories-roblox_GM431946152.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/8bp-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/free-exploit-roblox-mega-download_GM431946152.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/coin-master-cheat-codes_GM406889139.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/knife-simulator-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.misalhasyimiyahjkt.sch.id/__statics/gudangsoal/files/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003261.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3261 22956 bytes
SHA-256: f0f6194b0626d7e6b20439c826b6baee861746266d46117056e7818beb9a3b48
font_01_sfnt_off0000660e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x660E 18528 bytes
SHA-256: f8dd2954f0f3bcbf2df1f6258498c603c5a9fb04d130006050f95c06de5614fa

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