Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9eaed5627027ff7…

MALICIOUS

PDF

52.8 KB Created: 2020-08-28 22:28:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63aeceeeaae85fcfe75f868d0c34430f SHA-1: ddd5279021bd1217e5a6b10e71db3786b3079919 SHA-256: f9eaed5627027ff704c597ee4cd63537945651ea8a4e00891d11776cfa0f1142
120 Risk Score

Malware Insights

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

The PDF file contains a deceptive title and a large number of embedded links, identified as a PDF link farm. One of the primary links directs to a known malicious redirector, ttraff.ru, which is likely used to distribute further malicious content or phishing pages. The document body is heavily obfuscated, but the presence of the malicious redirector and the link farm heuristic strongly indicate a malicious intent, likely for phishing or SEO-based malicious redirection.

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/wix?keyword=futbol+en+vivo+hoy+gratis+por+intern
    • https://cdn.shopify.com/s/files/1/0431/5119/6315/files/vugafodametasusitakodeme.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/49977522550.pdf
    • https://cdn.shopify.com/s/files/1/0453/9875/3448/files/retirement_planning_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/6877/5841/files/sba_form_413.pdf
    • https://cdn.shopify.com/s/files/1/0428/0591/9903/files/15160726795.pdf
    • https://static.usrfiles.com/ugd/b8c837_5e1947b7e04447b99c3da2920385052d.pdf
    • https://static.usrfiles.com/ugd/b8c837_a25d2ea2402347baa32c25210f26d2f1.pdf
    • https://static.usrfiles.com/ugd/b8c837_06c94ce8b47e43228f51319a208a66f1.pdf
    • https://static.usrfiles.com/ugd/b8c837_57978bbb18fc40db95180635c483c4db.pdf
    • https://static.usrfiles.com/ugd/b8c837_e97a4c2bb7ae48c3aba4fe4fdf46d109.pdf
    • https://static.usrfiles.com/ugd/b8c837_decd755ffaf740bcaa3f681a02f97f30.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_off000084d7.bin
f003a8584d0584e862b77aed9d7212e6c8094260373b5538ad7a868f89c2cb61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84D7 5340 bytes
font_01_sfnt_off000096fb.bin
71ed7777df633bcdafb221e4b97748f029842b21a6b539cbd3a2681e07eb4123		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96FB 1648 bytes
font_02_sfnt_off00009f3c.bin
ce68551f9420236006754fe6db59e18d0b5707f1eeb97ff0bd5edcaebbd854bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F3C 11452 bytes

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