Malicious PDF — malware analysis report

Static analysis result for SHA-256 f705af491bbafbdf…

MALICIOUS

PDF

55.8 KB Created: 2020-08-05 17:07:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4171591dcbfe9876d20d445702f7c451 SHA-1: c71f892d4a66db33c37d0528a8595796be7f352e SHA-256: f705af491bbafbdf240010326ff12db6992d146c18325fdec5f459d337455615
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including a known malicious redirector. The primary heuristic indicates that the document is a malicious redirector, attempting to funnel users to harmful sites. The embedded links, particularly the one to 'ttraff.ru', suggest a phishing or scam attempt designed to lead users to malicious content.

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=sodhi+s+attitude+scale+pdf
    • http://files.beautyessencebymerabell.com/uploads/1/3/2/6/132695525/penagikivajixijolej.pdf
    • http://puporilun.apaveeperspective.com/uploads/1/3/1/4/131407511/ronujaxujigak_fubon_bezitepa.pdf
    • http://files.beannaigh.com/uploads/1/3/2/6/132695556/gogupobonapixasibe.pdf
    • http://files.judithersko.com/uploads/1/3/0/9/130969830/munape.pdf
    • http://files.jenniferbuchholz.com/uploads/1/3/1/3/131383305/pamunafis.pdf
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/4976379337.pdf
    • https://cdn.shopify.com/s/files/1/0435/5869/9159/files/how_to_make_teamspeak_server.pdf
    • https://cdn.shopify.com/s/files/1/0430/4715/7911/files/muzubudatimog.pdf
    • https://cdn.shopify.com/s/files/1/0429/5727/5299/files/vabur.pdf
    • https://cdn.shopify.com/s/files/1/0430/3237/9545/files/zikanutejolinopog.pdf
    • https://cdn.shopify.com/s/files/1/0431/2078/7613/files/34175897832.pdf
    • https://cdn.shopify.com/s/files/1/0433/0097/8853/files/gobedakujunul.pdf
    • https://cdn.shopify.com/s/files/1/0438/3513/0018/files/mahakavi_bharathiyar_books.pdf
    • https://cdn.shopify.com/s/files/1/0435/7046/2883/files/fallout_4_modding_guide_2019.pdf
    • https://cdn.shopify.com/s/files/1/0433/2571/8678/files/bootres._dll_corrupt_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0429/7873/8335/files/povoxizubodunosuwibanaxu.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_off00009611.bin
93b45912be2c6328b2b1f3112dbe9f3ae9676d4b0a7acd56a077497f8243cf98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9611 5252 bytes
font_01_sfnt_off0000a7f1.bin
b0ce378e181a5d729ab2863ba0bce935e05650881480223b89fb6ccc6837e2bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA7F1 12468 bytes

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