Malicious PDF — malware analysis report

Static analysis result for SHA-256 92b2eecf6391643f…

MALICIOUS

PDF

34.3 KB Created: 2021-07-04 21:12:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: b6d6ede23eabd6b1721111ab54a85340 SHA-1: 7806d9b9d2afeb2edce814828cec20424d73d6a2 SHA-256: 92b2eecf6391643fbce605c6d909515279146bf2aebfd91504ad11e8a74eb272
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic indicating it links to a 'free generator / game hack' redirector, specifically pointing to 'http://netcdn.tw/app/406889139/free-coins-coin-master-link-game-hack'. The document body also contains this URL, reinforcing the lure. This pattern suggests a phishing or scam attempt designed to trick users into visiting a potentially malicious site.

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/free-coins-coin-master-link-game-hack PDF link annotation
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-app_GM406889139.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/i-roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/free-robux-download-2021_GM431946152.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/coin-master-free-spin-realme-products_GM406889139.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/free-generator_GM431946152.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/coin-master-70-spin-link-2021_GM406889139.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/free-fans-on-tiktok_GM835599320.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/how-to-install-roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/how-do-i-get-robux_GM431946152.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/how-to-get-100-robux-on-roblox-free-2021_GM431946152.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/shadow-raid-cheats-roblox_GM431946152.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/free-roblox-military-script_GM431946152.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/roblox-cheat-engine-hacks-2021_GM431946152.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/coin-master-working-hack_GM406889139.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/how-to-kick-players-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elma.alazhar.sch.id/__statics/gudangsoal/files/minecraft-mod-updater_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
font_00_sfnt_off00003089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3089 22768 bytes
SHA-256: 350282a242f7454d5f10f983dc93a3aebd53aef78a24208883641dd83ef5b3ba
font_01_sfnt_off00006395.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6395 18168 bytes
SHA-256: b0fd03f2280421e1c8ba538a35ec3a9afcfe64ddb22ef6ef66156561f264a38b

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