Malicious PDF — malware analysis report

Static analysis result for SHA-256 e414312672d9aa06…

MALICIOUS

PDF

38.9 KB Created: 2020-08-22 04:15:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 09955378acc42c0dfd6aa48f06887982 SHA-1: 4dc683dd257ca0fadc7b509188f04a120505b415 SHA-256: e414312672d9aa0673da71fb5727776b64546a123649496ea3bd735d4b534465
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains a reference to 'Bet365 poker for pc' and the malicious URL, suggesting a lure to a gambling-related scam. The presence of a 'download button' heuristic further supports the attack pattern of tricking the user into clicking a malicious link.

Heuristics 4

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ttraff.com/pify?keyword=bet365+poker+for+pc
    • http://files.banjodanielmusic.com/uploads/1/3/1/8/131856072/demal-gewibibal-binafuti.pdf
    • http://dovimi.verplanckfire.org/uploads/1/3/0/8/130813668/69c91f82d066e96.pdf
    • http://kotaz.siwanhill.com/uploads/1/3/1/0/131069992/a87dd2d947d2e4.pdf
    • https://cdn.shopify.com/s/files/1/0433/2853/6734/files/62839886251.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wadilizesiwegokadokepub.pdf
    • https://cdn.shopify.com/s/files/1/0435/3998/8648/files/menijez.pdf
    • https://cdn.shopify.com/s/files/1/0434/8765/8141/files/discrete_mathematics_for_computer_science_book_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0431/9153/3725/files/berlin_schnefeld_airport_flight_information.pdf
    • https://cdn.shopify.com/s/files/1/0434/5928/1061/files/xatawasej.pdf
    • https://cdn.shopify.com/s/files/1/0431/4952/5156/files/woned.pdf
    • https://cdn.shopify.com/s/files/1/0434/0390/3127/files/kesujisoraxizimo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5042/5753/files/dupobojaminef.pdf
    • https://cdn.shopify.com/s/files/1/0438/1789/4050/files/schneider_electric_product_catalogue.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a90.bin
e98fd375bd04e7d0f86eac4589513a76aaa408f125db72a5ad84e0ce4de08fb8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A90 5144 bytes
font_01_sfnt_off00006c27.bin
8a69b9111228d289536de6cda211d651142645bef6318c32df09668225ecbd39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C27 10256 bytes

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