Malicious PDF — malware analysis report

Static analysis result for SHA-256 e17046943ff156e3…

MALICIOUS

PDF

34.9 KB Created: 2021-07-08 22:57:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 13d8d607db2cc1b4c14e3a862be34815 SHA-1: 6408e9086f0bb2e1b2828b1d7571792bec321251 SHA-256: e17046943ff156e3633c2f93377225f9ba4e7898387e7f422b081448bd24ab5d
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.tw/app/406889139/coin-master-hack-facebook-game-hack PDF link annotation
    • https://financia-business-school.com/static/upload/files/roblox-hack-tablet_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-free-clothes-codes_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-robux-script_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/hack-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-weapon-hack_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-powergrip-gauntlet-roblox-parkour_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-robux-hack-download-pc_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/spinuri-gratis-coin-master_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-hack-blox-piece_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/bad-minecraft-free_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-promo-codes-roblox-november-2021_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/earn-rbx_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/fly-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-get-free-robux-without-verification-or-surveys_GM431946152.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_off00003125.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3125 23336 bytes
SHA-256: ba99900c760e45837d110688e7ff0b9d2be99e260d9ef86e5f835645d1f5aa9b
font_01_sfnt_off000065db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65DB 18324 bytes
SHA-256: bb32a85166deec1bc0413a6c3f4f2e8134ce2f48ae2a06b801584c615e44360d

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