Malicious PDF — malware analysis report

Static analysis result for SHA-256 024208434759bea1…

MALICIOUS

PDF

35.3 KB Created: 2021-06-28 08:44:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: f28e29e149a334cf837a92b8973db92c SHA-1: 30ddbf4ddbd1ed788214706fd5bda20c041117bf SHA-256: 024208434759bea105656fbb4678d3085383a1e84780a72b7c02edcc04bab7e6
240 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains numerous links to external resources, including a primary malicious redirector at http://netcdn.co/app/431946152/is-roblox-free-to-play-game-hack. The document body and heuristics indicate a lure related to game hacks and generators, suggesting a phishing or malware distribution attempt. No scripts were extracted, but the PDF structure and link farm indicate a deliberate effort to drive traffic to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 6

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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/is-roblox-free-to-play-game-hack In PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/free-minecraft-capes-no-mods_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/how-to-hack-back-your-roblox-account_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/cheat-engine-money-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-using-cheat-enige_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/coin-master-card-link-free_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/coin-master-latest-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/vehicle-stereo-free-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/code-for-free-skin-roblox-wild-revolvers_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/roblox-hack-bogga-bogga_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/roblox-events-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/cant-play-any-game-roblox-gor-hacked_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1pohuwato.sch.id/__statics/gudangsoal/files/free-robux-app-code_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_off00003204.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3204 22764 bytes
SHA-256: 3fc6e711aafb9877888a0d28d0849edb958bed15372693c3f1222966fe4e063b
font_01_sfnt_off0000652f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x652F 18984 bytes
SHA-256: cc781f555a5b46448ec59c120e8fe371b6bfc191aeb9cb55b55ab3a24fbd8375

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