Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb3b37b184064ca8…

MALICIOUS

PDF

34.4 KB Created: 2021-06-26 17:23:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: ccdad3328bd94af890a976b60d5ccc4d SHA-1: db2edf0be6597f4df521d7fb634b37946762622a SHA-256: eb3b37b184064ca8eeb9932ae3847cb003959e66add9aa99bf4a99d5a5c00511
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators'. The primary malicious URL identified is http://netcdn.co/app/431946152/hack-roblox-account-kali-game-hack. This lure is designed to trick users into clicking through to potentially harmful content. No scripts were extracted, but the embedded URLs and the nature of the lure strongly indicate a phishing or scam attempt.

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.co/app/431946152/hack-roblox-account-kali-game-hack In PDF document text
    • http://www.sbairs.com/datas/files/reddit-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/pubg-uc-logo-png_GM1330123889.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/roblox-assassin-cheat-codes_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/roblox-cheat-tower-deffense_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/coin-master-spin-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/hack-coin-master-for-free_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_off00002dcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DCF 22952 bytes
SHA-256: d50ec61d28deeac4fae6d30b1268de1bfb856eeab2b80f19ecc8625c97664f84
font_01_sfnt_off00006179.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6179 19020 bytes
SHA-256: a045052ddabcd4c4fd18714183976fa526ea0d863967a2270b96c82b306c89a6

Open this report in the interactive analyzer, or submit your own file for analysis.