Malicious PDF — malware analysis report

Static analysis result for SHA-256 329aeaba710f55ad…

MALICIOUS

PDF

36.3 KB Created: 2020-08-15 07:37:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43be95552d389649650592406222d4b9 SHA-1: 51b99ffbbf49f414a88e89e597cc17cff5d4a306 SHA-256: 329aeaba710f55adbf79000b6c4018476b3c469c94607ed82d828e3a0672ef4b
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to ttraff.com, which is known for distributing malware. It also exhibits characteristics of a PDF link farm, with numerous embedded links, many of which are to Shopify domains. The presence of a 'download button' lure further supports the malicious intent. The document body contains obfuscated text and the malicious URL, suggesting it's designed to trick users into visiting the redirector.

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=autoit++image+from+url
    • http://files.sampriti.us/uploads/1/3/1/4/131407493/nenoxonulodajo.pdf
    • http://files.goodshepherdinoshkosh.com/uploads/1/3/0/7/130776276/6658535.pdf
    • https://cdn.shopify.com/s/files/1/0429/8627/4967/files/68383113118.pdf
    • https://cdn.shopify.com/s/files/1/0439/5086/6590/files/bbc_english_guide_class_12.pdf
    • https://cdn.shopify.com/s/files/1/0436/8901/7497/files/ethical_framework_for_the_counselling_professions.pdf
    • https://cdn.shopify.com/s/files/1/0431/1800/2340/files/crazy_frong_ringtone.pdf
    • https://cdn.shopify.com/s/files/1/0437/3587/5745/files/23329007260.pdf
    • https://cdn.shopify.com/s/files/1/0431/5290/0260/files/alice_in_wonderland_jr_full_script.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gobobuxewinunegurugita.pdf
    • https://cdn.shopify.com/s/files/1/0428/9455/7351/files/84619678130.pdf
    • https://cdn.shopify.com/s/files/1/0431/9710/4288/files/69312125797.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_off00005065.bin
0911f1d5cf419473c550aae9b8d423931c90bb4979a2d911cef02a1bf0a495b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5065 4900 bytes
font_01_sfnt_off000060fb.bin
8cfa1922ecbaecd18d44215660a068cf50f9d5a2bfd0470236faa934073a7c78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60FB 10676 bytes

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