Malicious PDF — malware analysis report

Static analysis result for SHA-256 3899b503b6867b6b…

MALICIOUS

PDF

34.4 KB Created: 2021-06-26 18:08:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 4845c08fb5f3d598b428960439535566 SHA-1: 31100c083b37a322a3cfa7fac010f5799b46964a SHA-256: 3899b503b6867b6b8404dcba765d41521e4f4d2d07ba911596d1a9cd1be4a73f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of 'game hacks' and 'free currency' to entice users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or phishing pages. The document's structure and embedded URLs suggest a campaign focused on tricking users into visiting scam or phishing sites related to popular online games.

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/roblox-broken-bones-4-hack-game-hack In PDF document text
    • http://www.travelone.ae/userfiles/files/free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/hack-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/claim-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/best-hack-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/how-to-hack-roblox-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/free-domain-for-minecraft-server_GM479516143.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/cpat-hacker-in-madcity-roblox_GM431946152.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/how-to-hack-roblox-for-free-stuff_GM431946152.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/how-do-u-trade-someone-for-free-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/roblox-creator-cheats_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_off00002f77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F77 22672 bytes
SHA-256: 4398071554f01b44e50b66e75d8807836b963bec5c48b652d4b2e9ceb0571f01
font_01_sfnt_off00006245.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6245 18716 bytes
SHA-256: d7548398a4aa33375920799cde9aa2bfe3403c0d8551cb2f113444ef3ad09d12

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