Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3baaa757e4388fc…

MALICIOUS

PDF

33.4 KB Created: 2021-07-06 03:45:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 659cdb82b04e4fe8d71544865c99821a SHA-1: 71ac587194f44a145892ac260173cb8ed4c1446e SHA-256: e3baaa757e4388fc9428706cd5dfa35ae3ae27f8f08fbb4f583b67cfa882150b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs that redirect to websites offering game hacks and generators, such as 'mc-hacks-game-hack'. The document body and heuristics indicate a lure designed to trick users into visiting these malicious redirectors. The primary attack pattern involves using a social engineering pretext to lead users to potentially harmful content.

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/479516143/mc-hacks-game-hack In PDF document text
    • http://sttlets.education/senayan//repository/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-build-a-boat-for-treasure-free-vip-server_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/mad-city-roblox-hack-saison-4_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-speed-hack-check-cashed_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-pastebin-hack-give-gun_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/more-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-unlimited-spins-hack_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/comment-hacker-des-gens-sur-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-recover-hacked-roblox-account-without-email_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/como-hackear-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/alone-battle-royale-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-robux-hack-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/comment-hacker-roblox-facilement-sur-pc-2021-en-francais_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-roblox-executor-no-key_GM431946152.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_off000031d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31D2 21796 bytes
SHA-256: dae3a4f45e725e8c9939464b206abf788bc48db764493ad0cc9281520a8674ea
font_01_sfnt_off0000614b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x614B 17800 bytes
SHA-256: 1b5794b2826a8362cc4110c385e4127bfa8d45b939c719b2ff9c7d332f48b5ab

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