Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0eedcf4228245f2…

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 22:21:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5d5ac48d82e366409792f2d45e98995e SHA-1: 2f440bb875ecb28f2123181aafe0fe165733e595 SHA-256: c0eedcf4228245f29f29d63a483c2d6ece060d323f13f1b7acbec7058ed6cf5f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and game hack lures, indicating a phishing or scam attempt. The document body, though partially corrupted, contains references to 'Dailyrobux' and 'game hack', reinforcing the lure. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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/431946152/dailyrobux-game-hack In PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coin-master-hack-mod-apk-android-1_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id/repository/how-to-get-free-robux-1m_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/roblox-cp_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id/repository/roblox-jump-fly-hack_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/freespinandcoin-blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/como-generar-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/how-to-sue-roblox_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-minecraft-mods-for-pc_GM479516143.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id/repository/how-to-hack-peoples-account-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coin-master-blogspot_GM406889139.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_off00002ef4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF4 22256 bytes
SHA-256: 44e76b584047daedde474fa0573e0e8f763f507a496e987577983b9ff3c84a22
font_01_sfnt_off00006070.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6070 19092 bytes
SHA-256: 319a3b741e60406540a19adb70d742732d8bf817a9bc58f36e4d58ba7e1a6a2d