Malicious PDF — malware analysis report

Static analysis result for SHA-256 8de1a3409863e454…

MALICIOUS

PDF

35.5 KB Created: 2021-06-30 01:51:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: d7c84c165c5a44981ec61e4f376fc387 SHA-1: acc0f0338eef97aacb41b2d48400716b726635dc SHA-256: 8de1a3409863e454e6de3f279a82daa5d45db76fb82a152c1ac7b9888cb1303a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks. The primary URL, http://netcdn.co/app/431946152/how-to-hack-roblox-accounts-website-game-hack, is identified as a malicious redirector. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting these sites, which likely serve as a gateway for further malicious activity such as malware downloads or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-hack-roblox-accounts-website-game-hack In PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/coin-master-free-spins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/roblox-free-superhero-package_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/how-to-use-a-script-hack-in-roblox_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/minecraft-pe-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/how-to-use-wurst_GM479516143.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/roblox-free-hats-game_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/how-to-hack-some-one-with-cookies-roblox_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/how-to-hack-coins-in-reson-to-die-roblox_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/coin-master-hack-apk-33-download_GM406889139.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/how-to-use-cheat-engine-64-on-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • http://stmb-multismart.ac.id/perpustakaan/repository/roblox-cheat-engine-66-bypass_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_off00003247.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3247 22536 bytes
SHA-256: f8c7620242fa174563d8e5cbb0c837949219fd19944842a31ca4bde3e141da2e
font_01_sfnt_off00006488.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6488 19380 bytes
SHA-256: cbf93ca1b8585a91d3251561f472e9e4419baa59ca5bd50de3c07f10d03f16db

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