Malicious PDF — malware analysis report

Static analysis result for SHA-256 80d61b1809d71a15…

MALICIOUS

PDF

34.5 KB Created: 2021-07-09 15:44:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 7f423bf88ff0a94f16e70b0dfa0b5dd9 SHA-1: 702eacfb941904634e0b85cd2166bb34ace2145e SHA-256: 80d61b1809d71a15231ba47e2cb394bdfe13a95ac163bb8f4b8e3e4d86696fac
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free robux'. The primary redirect URL is http://netcdn.tw/app/406889139/mcpe-master-hack-coin-apk-game-hack, which is associated with known malicious redirector activity. The document body and embedded URLs suggest a lure for users seeking cheats or in-game currency, likely leading to the download of unwanted applications or malware.

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/406889139/mcpe-master-hack-coin-apk-game-hack In PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/case-clicker-roblox-cheat_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/roblox-speed-hack-2021-new-code_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/hack-coin-master-download-ios_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/10-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/how-can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/notoriety-roblox-shadow-raid-secret-cheat_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/free-robux-2021-working_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/roblox-dll-scripts-cheat-engine-pastebin_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/minecraft-mod-menu_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/roblox-apocalypse-rising-2-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/coin-master-stop-attack-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/minecraft-items_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/spin-free-coin-master_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_off00003272.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3272 22400 bytes
SHA-256: 73b871e8c39519c519e7622ea50544efb2b85f1bbb7bc4d44eaaab2f42277408
font_01_sfnt_off0000647d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647D 18180 bytes
SHA-256: 87072597483cb08a2f983c489319c3f89934693df86524fd72547e99bba744fc

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