Malicious PDF — malware analysis report

Static analysis result for SHA-256 296c0798c250822b…

MALICIOUS

PDF

42.4 KB Created: 2021-05-15 01:07:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 952b6f3338d4ecf97a116da4d2315cb1 SHA-1: 369d0f0e75ea74d620154d445633ea9ca103a0c4 SHA-256: 296c0798c250822b45792d2ab06beb81b31a904770c6935dc47ff1d71ed27b72
240 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external resources, including a primary link to a known malicious redirector. The document body and extracted links suggest a lure for game hacks and generators, likely to distribute malware or conduct phishing. The presence of multiple SEO-optimized PDF links further indicates a campaign to drive traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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) 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 https://netcdn.xyz/app/479516143/free-op-minecraft-servers-game-hack In PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/coin-master-hacks-for-pet-food_GM406889139.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/coin-master-hack-online-download_GM406889139.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/roblox-lawsuit_GM431946152.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/coin-master-collect-today-free-spin_GM406889139.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/hack-game-coin-master_GM406889139.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • https://elearningman4kebumen.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-or-surveys_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
stream_003_off00004d25.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D25 24512 bytes
SHA-256: 346c119538d3af187c9597723f3cfc78dbab834d3d1603bafbbd9066e955fdda
font_01_sfnt_off000084c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84C8 17856 bytes
SHA-256: a77b7ff2a68dfc8683e01ffa7febdd478081a7961822aa2eebc6e1611696765c

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