Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5a760e9797347fe…

MALICIOUS

PDF

33.9 KB Created: 2021-07-04 05:05:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 78a15e767001c1707776172d532a59e7 SHA-1: 3628c1f566107377d29cdf45f4c209cc4aac0a2e SHA-256: e5a760e9797347fefcdf3f2d853412c57ddebb869f7421bbc7c319771595b020
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to a known malicious domain, promising game hacks. The heuristic firings indicate that the PDF is designed to lure users into clicking these links, likely leading to further malicious content or downloads. No scripts were extracted, but the embedded URLs and redirector links are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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-no-root-game-hack In PDF document text
    • https://www.cinemapalace.ro/trailer/files/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/free-to-roblox-card_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/github-script-cheat-stc-lua-roblox_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/free-robux-it-meme_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/como-hackear-roblox-para-tener-robux-2021-pc_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/coin-master-real-free-spins_GM406889139.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/noclip-hack-roblox-jailbreak-may2021_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/free-morph-gui-roblox_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/app-to-hack-roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/free-roblox-girl-clothes_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_off00003174.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3174 22212 bytes
SHA-256: 3e49171fded04e6fcb9b7bd218d61a51091b8f122640baede39b7f8ad90367a8
font_01_sfnt_off000062a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A9 18004 bytes
SHA-256: 549beb99202183260cec546d87202bf9f33ec82d563d99b2488d726b36bc9bd3

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