Malicious PDF — malware analysis report

Static analysis result for SHA-256 707f676e3c1ca1aa…

MALICIOUS

PDF

44.1 KB Created: 2021-05-14 16:37:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9e0e0e1e79a2bc68c7ea4ff46a70faf2 SHA-1: 66571dcfa1627c237319fadbddc11e1fb4bd1045 SHA-256: 707f676e3c1ca1aa0c57686081c3d6b4bba0884aad848dc13f0c0308b6a4ce22
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free Robux' and 'game hacks' as a lure. The heuristic firings confirm these links lead to known malicious redirectors and a game hack lure. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to drive users to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/free-robux-2021-no-human-verification-game-hack In PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/free-robux-app_GM431946152.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/fighting-free-card-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/hack-coin-master-online_GM406889139.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/how-to-get-free-tokens-in-minecraft-ps4_GM479516143.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/hack-version-coin-master-apk_GM406889139.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/coin-master-card-hack-app_GM406889139.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/microsoft-roblox-rewards_GM431946152.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/coin-master-free-spins-bit-ly_GM406889139.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/rbx-earn_GM431946152.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/get-robux-com_GM431946152.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/coin-master-app-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • https://elearning.mtsdarulhikamcirebon.sch.id/__statics/gudangsoal/files/is-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ce2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CE2 25496 bytes
SHA-256: 58e529df91b5534f641d3fb0aee84ad252b5bad77d035869b75f50c190a823ab
font_01_sfnt_off000086f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86F6 19260 bytes
SHA-256: a5b009a33d06eb91b5687aca452054299973906144ac3f9b2fc2dd0e2fef1dac

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