Malicious PDF — malware analysis report

Static analysis result for SHA-256 b330eddf96034a00…

MALICIOUS

PDF

35.5 KB Created: 2020-08-23 09:53:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b36c14b0ca87846a2606fec15f378138 SHA-1: 96614d6e412632d47db745db5d80b193f2dfb71c SHA-256: b330eddf96034a00a743e136ebde60e99494a1ce38ba1013c3127cf64a5512ba
128 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to benign Shopify-hosted PDFs, but one critical link leads to a known malicious redirector at 'ttraff.ru'. The document body also contains a call-to-action phrase, suggesting a lure to click the malicious link. The primary malicious URL is https://ttraff.ru/pify?keyword=online+video+er+cc+converter.

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.ru/pify?keyword=online+video+er+cc+converter
    • http://files.allans-automobiles.com/uploads/1/3/2/7/132740182/lifavimeluzuju_sawegutatakida.pdf
    • http://gifamenin.mundaringpoolcare.com/uploads/1/3/0/9/130969757/3645238.pdf
    • https://cdn.shopify.com/s/files/1/0435/1790/3008/files/difference_between_hygiene_and_sanitation.pdf
    • https://cdn.shopify.com/s/files/1/0431/0401/0389/files/chordates_classification.pdf
    • https://cdn.shopify.com/s/files/1/0437/1546/1285/files/center_a_button_bootstrap.pdf
    • https://cdn.shopify.com/s/files/1/0437/6874/2040/files/36514143009.pdf
    • https://cdn.shopify.com/s/files/1/0434/6665/3858/files/battleeye_initialization_failed.pdf
    • https://cdn.shopify.com/s/files/1/0441/4413/2248/files/36685469586.pdf
    • https://cdn.shopify.com/s/files/1/0428/4170/2567/files/43118791662.pdf
    • https://cdn.shopify.com/s/files/1/0431/0722/1670/files/dixenirodiropobin.pdf
    • https://cdn.shopify.com/s/files/1/0433/9620/2659/files/54240074173.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_off00004ec9.bin
e009b0aa2863f688ced873243be2ab93916151ebf725143aac54a9d719281f15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4EC9 4632 bytes
font_01_sfnt_off00005e98.bin
ba1d5e4505e867faac7d69b132f6d52b2c40f3436a5b1d2dbca7ce4f7076775a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E98 10232 bytes

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