Malicious PDF — malware analysis report

Static analysis result for SHA-256 9eeae2eabb930959…

MALICIOUS

PDF

33.7 KB Created: 2021-07-06 05:13:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2189fe27790392a2ff8353f555c6ac93 SHA-1: 10363ac71559fe52f75eae3e0fb0fba13dd77604 SHA-256: 9eeae2eabb930959ab7fdcc9b21c91f89c0d721f676d2156fbdf927d5824ec16
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-free-shield-link-game-hack PDF link annotation
    • https://fib.ub.ac.id/sac//repository/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-jailbreak-money-hack-pastebin_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-generator-no-survey-d_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-card-hack-apk_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-youtube-tiktok_GM835599320.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-roblox-bundles-2021_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-get-free-robux-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/como-hackear-coin-master-sin-verificacion-humana_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-free-spins-fb_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/cm-spin-link_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/non-blocked-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-minecraft-domain_GM479516143.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_off00002e2a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E2A 22492 bytes
SHA-256: 36212363e79b2b2e5baad64c8ef591e91ed849257a53360453167e0850b59d61
font_01_sfnt_off0000600a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x600A 18580 bytes
SHA-256: 28ee47efd6c2d2ec5d8d6e69d99c6b14bf9fd67f9a78f80b4c32aabff95defac

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