Malicious PDF — malware analysis report

Static analysis result for SHA-256 c701c6d299f0132d…

MALICIOUS

PDF

46.2 KB Created: 2021-05-10 20:36:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 288b451e087bc2a65273a71c78c4a5f7 SHA-1: aa8511230016f72e9ebd39c9a752c67a946c2021 SHA-256: c701c6d299f0132d7e152c5f1d3210c97232aa10ee9bc8cc4603d3095b43ba06
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, masquerading as 'game hacks' or 'free generators'. The primary lure URL is https://netcdn.xyz/app/431946152/how-to-hack-roblox-accounts-2021-easy-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious redirector workflow, likely intended to deliver a secondary payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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 https://netcdn.xyz/app/431946152/how-to-hack-roblox-accounts-2021-easy-game-hack In PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/getrobux-now_GM431946152.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/real-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/roblox-free-pets_GM431946152.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/roblox-exploit-scripts_GM431946152.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/roblox-assassin_GM431946152.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/coin-master-club-hack_GM406889139.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/cm-spin-link_GM406889139.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-2021-ios_GM406889139.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • http://elearning.man01kuningan.sch.id/__statics/gudangsoal/files/free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000496f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x496F 25020 bytes
SHA-256: e2ee85bf01e73dcf2763c3e4e9a30d07d633ea9c4107798225c56a96344219e9
font_01_sfnt_off00008249.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8249 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_02_sfnt_off00008ef0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EF0 19172 bytes
SHA-256: 0a4c192dd0d49b475d670e2028b2e3d9bc88486e58824ff416e2d46c0acce708

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