Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e3f30020abd946b…

MALICIOUS

PDF

35.6 KB Created: 2021-07-04 02:21:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: bddb86907de5c736a0fa094199ef8eea SHA-1: 684a522a95cb3162b12106037b68a039396ece27 SHA-256: 1e3f30020abd946b1f6f638a2038901176d92cd2a6871bf640e3bb2a7946698c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links, including one to 'netcdn.tw', which is flagged as a game hack redirector. The document body and extracted URLs suggest a lure for obtaining free game currency or hacks for popular games like Coin Master and Roblox. While no scripts were directly extracted, the PDF structure and embedded links indicate a potential for exploitation or redirection to malicious sites, likely serving as a phishing or malware distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-games-hack-game-hack PDF link annotation
    • http://e-library.smkn1jombang.sch.id/repository/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/cheat-in-roblox-robux-2021_GM431946152.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/how-to-get-free-roblox-items_GM431946152.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/coin-master-card-hack_GM406889139.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/how-to-hack-into-any-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/coin-master-2021_GM406889139.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/how-do-you-get-free-robux-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/coin-master-mod-apk-latest-version-free-download_GM406889139.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/coin-master-70-spin-link_GM406889139.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/coin-master-free-spins-11-01-2021_GM406889139.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/how-to-get-robux-free-no-verification_GM431946152.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/rbx-place-free-robux_GM431946152.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/free-spin-link_GM406889139.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/coin-master-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/is-pokemon-go-free-on-iphone_GM1094591345.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/games-in-roblox-that-give-you-robux_GM431946152.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
font_00_sfnt_off00003513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3513 23088 bytes
SHA-256: 1a592228bce407d654e9082e31bdf10d1e18c7d19fca0b67e3bef675c018ad34
font_01_sfnt_off000068c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68C6 18264 bytes
SHA-256: c1c21b29a6afb4d06e4d6845aa9afd5500216469eff45eb2d027be7bd9c24dc5

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