Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b80b9325541a122…

MALICIOUS

PDF

51.0 KB Created: 2020-08-20 20:19:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6cc813acec5775d97cfd8ed585bf5421 SHA-1: fb8357841feb0d45e13884ee32dc02b23ee881b2 SHA-256: 8b80b9325541a122da02ce37fac1f999c400f37d38784ef510bd20baf8a0d9f2
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious URL, disguised with a keyword suggesting a legitimate document. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources. The primary malicious URL is https://ttraff.cc/pify?keyword=electrical+engineering+lab+report+template, which is likely intended to lead the user to a phishing or malware distribution site.

Heuristics 3

  • 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.
  • 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.cc/pify?keyword=electrical+engineering+lab+report+template
    • http://files.atonewellness.com/uploads/1/3/1/3/131383398/gananikukikadu.pdf
    • https://cdn.shopify.com/s/files/1/0436/1574/8253/files/37054970844.pdf
    • https://cdn.shopify.com/s/files/1/0434/6878/3773/files/canoskan_lide_25.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/netufafapifoditube.pdf
    • https://cdn.shopify.com/s/files/1/0446/5616/5027/files/building_construction_mckay_volume_1.pdf
    • https://cdn.shopify.com/s/files/1/0437/1621/4936/files/zewonupotofano.pdf
    • https://cdn.shopify.com/s/files/1/0432/5883/9198/files/21508942829.pdf
    • https://cdn.shopify.com/s/files/1/0434/4299/5352/files/seismic_interpretation_basics.pdf
    • https://cdn.shopify.com/s/files/1/0430/2356/4957/files/yom_kippur_2019_dates.pdf
    • https://cdn.shopify.com/s/files/1/0440/8341/3142/files/bond_polarity_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0439/4650/8456/files/cake_php_find.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c8f.bin
7a821bff4189ad059be3ae14c2c0aa2550d92f3dcff830d5a1e8db798197bf36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8F 4960 bytes
font_01_sfnt_off00008d46.bin
264fc5e186c119e9fdf8e42357830a11e5eb4a56ecd25f585ea314d282924e65		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D46 10388 bytes
font_02_sfnt_off0000b0c5.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB0C5 4324 bytes

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