Malicious PDF — malware analysis report

Static analysis result for SHA-256 414dee6efa7e7e1a…

MALICIOUS

PDF

47.5 KB Created: 2021-06-03 08:29:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 63129e00ef936cfb3d1ba397defd8beb SHA-1: 22783be3094272fbb2068a632e51923096909cf4 SHA-256: 414dee6efa7e7e1acb23ec83d771b9718d3fa3b0dae60d892a758fcdf8ba061e
180 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a malicious redirector, disguised as offers for free game items and hacks. The primary lure URL is https://netcdn.online/app/479516143/how-to-get-minecraft-for-free-ios-game-hack, which is associated with a known malicious infrastructure. The document body, though partially obfuscated, also contains this URL and other links to potentially malicious PDF files hosted on whiteyaknepal.com. This indicates a phishing or scam attempt designed to lead users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

Heuristics 5

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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 https://netcdn.online/app/479516143/how-to-get-minecraft-for-free-ios-game-hack In PDF document text
    • http://whiteyaknepal.com/userfiles/files/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/minecraft-pe-mod-menu_GM479516143.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/best-site-for-free-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/free-minecraft-packs_GM479516143.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/how-to-gift-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/minecraft-java-edition-free-download-for-android_GM479516143.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/free-coin-master-spins-link-download_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/install-free-game-coin-master_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/coin-master-free-chip_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/http-blackgamesus-coinmasterhack_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/password-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000554b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x554B 24684 bytes
SHA-256: df5a5240953c623ee75d78e8687489529f77e3973fe00cc21172985b8143b37b
font_01_sfnt_off00008dd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DD5 3056 bytes
SHA-256: dd24a0ab94df4552e459bd06fd01b0fd3f021c1d51d1d64407070e735974a028
font_02_sfnt_off00009848.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9848 17872 bytes
SHA-256: f310131035db742f338f230ab2c5697c5d59cc25d8943e3e3339342bb09010ba

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