Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1ec309e860b74ee…

MALICIOUS

PDF

45.7 KB Created: 2021-06-04 04:57:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: abfb830c372836627c615236499f85d4 SHA-1: 511009b969542eae1e4fa1aafa26edbc3bb51e66 SHA-256: e1ec309e860b74ee10c4c2fef5b7bcd2cb03f538224fce744768424e1f7c095b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks or generators. The primary lure URL is https://netcdn.online/app/479516143/minecraft-free-apk-download-016-0-game-hack, which is flagged as a malicious redirector. The document body and embedded URLs suggest a phishing attempt to trick users into downloading potentially unwanted or malicious software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/479516143/minecraft-free-apk-download-016-0-game-hack In PDF document text
    • http://lib-smansumsel.sch.id/repository/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/robux-xyz_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/pokemon-go-free-gyarados_GM1094591345.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/best-free-hacked-client_GM479516143.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/coin-master-34-6-hack_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-robux-come_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/coin-master-hack-lost-world-2021-com_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/how-to-hack-coin-master-game-ios_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/app-master_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/official-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/minecraft-wurst-client_GM479516143.pdfIn PDF document text
    • https://www.youtIn 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_004_off000054a8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x54A8 25384 bytes
SHA-256: 0a966aab07464aadb3e207876a9a9d2f30a9288ae0300c21e726596034805352
font_01_sfnt_off00008dba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DBA 19080 bytes
SHA-256: b0bc100c513515607a17b5040978044635b105217125244aae972715351880fe

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