Malicious PDF — malware analysis report

Static analysis result for SHA-256 a68ff79b0e416d23…

MALICIOUS

PDF

36.1 KB Created: 2020-08-12 22:54:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ddc9634517b512c80279a9012205558 SHA-1: f668a7f818c296df91292145f510e9c8e749d255 SHA-256: a68ff79b0e416d23e5febe811123ba276b84a49e2c1c3c8861aa442b860591bf
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, a technique often used for SEO poisoning or to redirect users to malicious sites. One critical heuristic identified a link to a known malicious redirector, 'ttraff.com', which is presented in the document body as a download for 'Sexuality and the psychology of love pdf download'. This suggests the document is a lure to drive traffic to malicious infrastructure.

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.com/pify?keyword=sexuality+and+the+psychology+of+love+pdf+download
    • http://files.starfishlbicharters.com/uploads/1/3/0/7/130775544/zojiza.pdf
    • http://files.fancyrat.net/uploads/1/3/1/4/131437660/vasolizobogo-tajigixitif-sivelulenutoda.pdf
    • http://wipefadat.aylmerunitedchurch.ca/uploads/1/3/1/4/131453133/8930450.pdf
    • https://cdn.shopify.com/s/files/1/0433/0071/6694/files/dopogazosunog.pdf
    • https://cdn.shopify.com/s/files/1/0430/9273/8201/files/5729609817.pdf
    • https://cdn.shopify.com/s/files/1/0429/3532/0742/files/65897276579.pdf
    • https://cdn.shopify.com/s/files/1/0433/2044/3045/files/verb_adverb_adjective_noun_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0432/1371/7662/files/loxijefanegitefijije.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/dallas_stars_schedule.pdf
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/jaluximotelarumipibeloto.pdf
    • https://cdn.shopify.com/s/files/1/0430/8431/6823/files/social_psychology_11th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0436/1771/4334/files/motor_auto_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0440/7430/3640/files/rorukuge.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_off00004cfa.bin
d340a32e4714b956fc3030b867d8b183cac0851143d9ea935b921e45252bb938		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4CFA 5744 bytes
font_01_sfnt_off000060a9.bin
a23613be83661e7bf1f4d49b19af19d18480662b814667d9441ee9135215a6ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60A9 10200 bytes

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