Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed24d1502387cc2e…

MALICIOUS

PDF

35.7 KB Created: 2021-07-06 18:08:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 9b06a440125863ee742e32bcf0a71c83 SHA-1: ec4004994b34c59c4200e99b8b0df1e3d9037560 SHA-256: ed24d1502387cc2eb0c7be534973d20515545468b903f0faee18b8a8f2b3236e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free in-game currency, specifically targeting Roblox players. It contains multiple embedded URLs, with the primary one, http://netcdn.tw/app/431946152/roblox-games-with-free-vip-servers-game-hack, identified as a malicious redirector. The document's structure and embedded links strongly suggest an attempt to trick users into visiting malicious sites, likely for credential harvesting or malware distribution. No scripts were extracted, but the PDF's nature and the identified malicious URL 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.tw/app/431946152/roblox-games-with-free-vip-servers-game-hack In PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/how-to-get-free-robux-2021-without-human-verification_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-roblox-autofram_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/all-players-in-roblox-passwords-password-hack_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/comment-telecharger-un-hack-sur-roblox-fr_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/roblox-script-button-for-hacks-fake_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-robux-with-only-username_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-mod-apk-unlimited-spin-download-free-full-version_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/hack-coin-master-for-android_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/progaming-hacks-com-roblox_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/basic-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-private-server-roblox_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-roblox-loot-bags_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/hacks-roblox_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/how-to-insert-scripts-on-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-free-spins-may-11-2021_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/how-to-get-robux-with-cheat-engine-64_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/how-to-get-free-robux-roblox-hack_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_off000031ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31AC 22536 bytes
SHA-256: 7544ae27dd10da2f42c19e6677ee1ca2393b29c93fdb6f0fbb5d5f35d8e795e6
font_01_sfnt_off00006417.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6417 19924 bytes
SHA-256: 08d0d23d25727412a5531a25b53b5f984a9d3bc65ab8a5a59e69d69a05fcca2e

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