Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf25753276177267…

MALICIOUS

PDF

49.4 KB Created: 2020-08-29 23:33:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55045bfc14e976596af3020e9f29a9f8 SHA-1: e67fe7c89192a21b46abe7e982195690ae52c527 SHA-256: bf257532761772671e110b2d3a3f321f2ce5991e52de0c635b07490e10db4294
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. The link points to 'ttraff.ru', a known malicious redirector. The document also contains a large number of embedded links, many pointing to Shopify, which is indicative of a link farm used for SEO poisoning. The primary malicious link is disguised as a '2015 bmw s1000rr service manual pdf'.

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=2015+bmw+s1000rr+service+manual+pdf
    • https://cdn.shopify.com/s/files/1/0462/3165/0453/files/vugoxifetebajatuju.pdf
    • https://cdn.shopify.com/s/files/1/0429/9181/2767/files/40021855688.pdf
    • https://cdn.shopify.com/s/files/1/0437/9800/3874/files/las_ciencias_naturales_y_sus_ramas.pdf
    • https://cdn.shopify.com/s/files/1/0437/3751/4133/files/coordinates_minecraft_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0429/7667/3946/files/zeworijejawegojimadebe.pdf
    • https://cdn.shopify.com/s/files/1/0431/6315/6642/files/kovudoluvumizezozuzi.pdf
    • https://cdn.shopify.com/s/files/1/0429/1212/0998/files/73779760369.pdf
    • https://cdn.shopify.com/s/files/1/0458/0946/7558/files/2017214242.pdf
    • https://cdn.shopify.com/s/files/1/0427/9966/1223/files/strange_dust_wow.pdf
    • https://cdn.shopify.com/s/files/1/0427/3248/6823/files/python_point_class.pdf
    • https://cdn.shopify.com/s/files/1/0430/7383/1072/files/xikozo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tokavurovapipemekimisam.pdf
    • https://cdn.shopify.com/s/files/1/0437/8335/6565/files/margaret_hough_counselling_skills_and_theory.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_off0000676f.bin
08bde88a5ee581ef437a4734c02dd81a905717f6eb31e2078716776808cd1156		 pdf-font-stream PDF embedded font (sfnt) at offset 0x676F 5948 bytes
font_01_sfnt_off00007b9e.bin
e19640d680b0170a279c0c05ac98c0d50770f285ce1c09ca361509d55da7d9ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B9E 12388 bytes
font_02_sfnt_off0000a3bb.bin
713933360072c9d59346590fad668f98c3603c6d2b72ed941ce85481f6af0b74		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3BB 16060 bytes

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