Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9bbad960e7d0c01…

MALICIOUS

PDF

43.1 KB Created: 2020-08-19 23:06:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65204d9dc6a2c3fea545636086395bc9 SHA-1: 1678dfb5f982f489068fabeb6d91229cb983c339 SHA-256: f9bbad960e7d0c019cc3b3028fd01059aba22aa0c50f2a94b9772eb2940f7f06
120 Risk Score

Malware Insights

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

The PDF file contains a high number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=suv+muv+xuv+full+form'. The document body, though heavily obfuscated, also contains this URL, reinforcing its role in the attack. The primary goal appears to be redirecting users to malicious content or potentially a phishing page.

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.ru/pify?keyword=suv+muv+xuv+full+form
    • http://files.alishahmalik.com/uploads/1/3/1/4/131482991/zasuronoxupegasuje.pdf
    • https://cdn.shopify.com/s/files/1/0428/5323/6902/files/formal_and_informal_email_writing_examples.pdf
    • https://cdn.shopify.com/s/files/1/0438/9958/4664/files/nefubawimaguzadalela.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/13563968310.pdf
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/flyff_ph_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/8371/0117/files/80755857691.pdf
    • https://cdn.shopify.com/s/files/1/0435/4637/8404/files/11911579552.pdf
    • https://cdn.shopify.com/s/files/1/0430/6511/4775/files/41436675576.pdf
    • https://cdn.shopify.com/s/files/1/0430/5115/5609/files/left_right_speaker_test.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_off00006c6c.bin
ff16aa6bbf7b292b725595d75543e752275b6c85957674a2c31374357aaa3df6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C6C 4756 bytes
font_01_sfnt_off00007c8e.bin
d6d09668654a45ae316f381a5afa1c2507cd48ef63e92092d1ffa9ab6780c50a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8E 10540 bytes

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