Malicious PDF — malware analysis report

Static analysis result for SHA-256 a952272d9d66895c…

MALICIOUS

PDF

40.4 KB Created: 2020-08-29 07:39:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 870e2f5b4e0e69c1f9878bb61f20bed1 SHA-1: 510a6a7679f967450796ac1c06bcd5331bade903 SHA-256: a952272d9d66895ccc8ce60d5bfa89879e199336d5f9361a37b74b4421db794a
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to known malicious infrastructure. Additionally, PDF_SEO_LINK_FARM indicates a mass external PDF link farm. The primary IOC is the malicious redirector URL, which is likely used to lure victims to a compromised site or 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.cc/wix?keyword=m%25E1%25BA%25B9+k%25E1%25BA%25BF+%25C4%2591o%25E1%25BA%25A1n+k%25E1%25BA%25BFt+jan+dara+the+finale+%2528
    • https://cdn.shopify.com/s/files/1/0432/4818/9603/files/45145185484.pdf
    • https://cdn.shopify.com/s/files/1/0444/0319/6070/files/self_defense_definition.pdf
    • https://cdn.shopify.com/s/files/1/0432/0677/0843/files/sqlite_viewer_android_studio.pdf
    • https://cdn.shopify.com/s/files/1/0430/2585/8711/files/nozujozureseruzivineviz.pdf
    • https://cdn.shopify.com/s/files/1/0435/1164/4324/files/apologia_de_socrates_libro.pdf
    • https://cdn.shopify.com/s/files/1/0431/6512/2711/files/bruker_s1_titan_manual.pdf
    • https://cdn.shopify.com/s/files/1/0439/9444/8030/files/gevetepafalagorozi.pdf
    • https://static.usrfiles.com/ugd/b8c837_cb47b5f1d4014dbdb96ac6e2fda0fb45.pdf
    • https://static.usrfiles.com/ugd/b8c837_92d19a79efe345d0bc8ffa3f4fb0913e.pdf
    • https://cdn.shopify.com/s/files/1/0435/9464/5672/files/tenobemevojobo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4986/0765/files/5780164622.pdf
    • https://cdn.shopify.com/s/files/1/0431/3032/3101/files/transgender_snapchat_sexting.pdf
    • https://cdn.shopify.com/s/files/1/0430/0292/1111/files/birthday_calendar_template_free_word.pdf
    • https://cdn.shopify.com/s/files/1/0431/0532/1109/files/hurst_police_department_police_reports.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_off00004e0a.bin
386699651c07830fa301f8bc027d044431c93ff3e111718d22e6411558493ab0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E0A 5516 bytes
font_01_sfnt_off00005f97.bin
95499767bdd3d1a3859ddd28db076d33797cd0fd1d5b4cdeb9ae9024fe0d54e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F97 11708 bytes
font_02_sfnt_off00008471.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8471 4324 bytes

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