Malicious PDF — malware analysis report

Static analysis result for SHA-256 08e158178cf408dd…

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 15:08:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9b6fb352cc6cc23c6f0bd4b5d1f516e0 SHA-1: 6bcc24100f4709be2bce4056164a8c025393aab1 SHA-256: 08e158178cf408dd8cfc3fd10fd6ba4665e8fbddaa01ea17cea762128e6c8dea
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a known malicious infrastructure, specifically advertising 'free generator / game hack' content. This suggests a lure-based attack, likely intended to lead the user to a site that hosts malware or attempts phishing. The presence of multiple related URLs reinforces this malicious intent.

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.tw/app/479516143/cool-minecraft-hacks-game-hack In PDF document text
    • https://belajar.mansalotim.sch.id/__statics/gudangsoal/files/free-robux-easy_GM431946152.pdfIn PDF document text
    • https://belajar.mansalotim.sch.id/__statics/gudangsoal/files/roblox-adopt-me-hacks-2021_GM431946152.pdfIn PDF document text
    • https://belajar.mansalotim.sch.id/__statics/gudangsoal/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://www.belajar.mansalotim.sch.id/__statics/gudangsoal/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • https://www.belajar.mansalotim.sch.id/__statics/gudangsoal/files/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://belajar.mansalotim.sch.id/__statics/gudangsoal/files/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://belajar.mansalotim.sch.id/__statics/gudangsoal/files/is-roblox-free-on-laptop_GM431946152.pdfIn PDF document text
    • https://www.belajar.mansalotim.sch.id/__statics/gudangsoal/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://belajar.mansalotim.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-whatsapp-group_GM406889139.pdfIn PDF document text
    • https://belajar.mansalotim.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-group-ranks_GM431946152.pdfIn PDF document text
    • https://www.belajar.mansalotim.sch.id/__statics/gudangsoal/files/free-coin-master-links_GM406889139.pdfIn PDF document text
    • https://belajar.mansalotim.sch.id/__statics/gudangsoal/files/robux-hack-tools_GM431946152.pdfIn PDF document text
    • https://belajar.mansalotim.sch.id/__statics/gudangsoal/files/free-spins-coin-master-april-2021_GM406889139.pdfIn PDF document text
    • https://belajar.mansalotim.sch.id/__statics/gudangsoal/files/coin-master-tricks-and-hacks_GM406889139.pdfIn PDF document text
    • https://www.belajar.mansalotim.sch.id/__statics/gudangsoal/files/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://belajar.mansalotim.sch.id/__statics/gudangsoal/files/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://belajar.mansalotim.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://www.belajar.mansalotim.sch.id/__statics/gudangsoal/files/free-25-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://www.belajar.mansalotim.sch.id/__statics/gudangsoal/files/coin-master-game-hack-link_GM406889139.pdfIn PDF document text
    • https://www.belajar.mansalotim.sch.id/__statics/gudangsoal/files/synlapse-roblox-free-download_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
font_00_sfnt_off000034d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34D6 22024 bytes
SHA-256: e03b2fcd18c94854f82a93527d60c1118349930dcc2533ca061327b70df3868a
font_01_sfnt_off00006555.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6555 18240 bytes
SHA-256: 1c98bc36042c0615650adcd4002099b1bf58f46cf651dff08176303f69938fe5

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