Malicious PDF — malware analysis report

Static analysis result for SHA-256 50e841d83349266d…

MALICIOUS

PDF

34.7 KB Created: 2021-06-21 20:06:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: e121247198ceb2ed0be6983b6f903743 SHA-1: 3057dcc30c686b39faa21d13460443cdfc74b202 SHA-256: 50e841d83349266daaf63243db7f5ac0bb2f8c57f4cf39a9c78d20bf56ee44b3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector, that promise free game hacks and items. The document body and heuristics indicate a lure for users to click these links, likely leading to a phishing site or malware download. No scripts were extracted, but the embedded URLs and the nature of the lure suggest a phishing or potentially a downloader attack pattern.

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/free-roblox-meme-avatars-game-hack In PDF document text
    • http://www.my-travel.com.hk/upload/files/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-install-minecraft-for-free-on-ios_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/clean-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/csgo-hack-script-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-get-free-tiktok-followers-without-human-verification_GM835599320.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/coin-master-free-spins-app-android_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/yt-how-download-script-hack-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-get-free-robux-buzz_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/roblox-player-speed-hack-script_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/minecraft-pe-free-download-android_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/coin-master-free-spins-link-download-free_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-get-free-robux-2021-on-ipad_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_off0000318d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x318D 21860 bytes
SHA-256: 3032e5217be6cb10175a22cbdc84757d0907446893dc7233b74f19a80fc56bc5
font_01_sfnt_off000061d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D1 19324 bytes
SHA-256: 46d5ada987ab863716dfaf4b5e735ff0468c5d7b30648741bff04a8f36320fcc

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