Malicious PDF — malware analysis report

Static analysis result for SHA-256 68945819ebba11fc…

MALICIOUS

PDF

36.9 KB Created: 2021-07-09 10:20:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 447fafff16c024537af00ab897c7e0d9 SHA-1: 366ad47c4a4d3174c3e4192f2b3fb1e60d1bd797 SHA-256: 68945819ebba11fc4159a53064fc924021190fef3776d9ea4f2902a81de7de49
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 in-game currency. The primary lure appears to be related to 'Coin Master' and 'Roblox' cheats. The embedded URLs are designed to trick users into visiting potentially harmful sites, likely for further exploitation or malware delivery.

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/coin-master-hack-apk-35-33-game-hack In PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/goku-free-cloth-roblox_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/how-to-get-unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/best-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/minecraft-java-edition-key-free_GM479516143.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/vido-roblox-free-robux-generatorcom_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/android-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/coin-master-fun-hack_GM406889139.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/free-robux-tips_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://elearning5.mts-mifdakpj.sch.id/__statics/gudangsoal/files/hack-coin-master-net_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_off000036aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36AA 23868 bytes
SHA-256: 026ebad372d7ef49f28d016af8d074890687ff41847637bddbebe04d5492c0c6
font_01_sfnt_off00006cda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CDA 18488 bytes
SHA-256: b082fb9f4b91cd5801503d5b8dc4153536c68570bccf43a32d31f4ce196b477d

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