Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ef59e818fc0aaaa…

MALICIOUS

PDF

61.0 KB Created: 2020-08-25 03:00:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76a61815ea103274da48cd20f409c067 SHA-1: ba85ff0ceaf7916797246b0d479395d91a59bab4 SHA-256: 3ef59e818fc0aaaab54ad7bde388ceba84e5607883a8012393a61bf3b598e233
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK pointing to 'ttraff.com'. This indicates the PDF is designed to redirect users to malicious infrastructure. Another critical heuristic, PDF_SEO_LINK_FARM, indicates the PDF contains numerous external links, likely to bolster SEO for malicious sites or to distribute malware. The presence of the URL 'https://ttraff.com/pify?keyword=death+penalty+should+not+be+abolished+pdf' in the document body further supports this. No scripts were extracted from this sample.

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.com/pify?keyword=death+penalty+should+not+be+abolished+pdf
    • http://files.allenelectricaleducation.com/uploads/1/3/1/0/131070112/zijaze_satixen.pdf
    • https://cdn.shopify.com/s/files/1/0440/2964/0854/files/simpsons_game_of_thrones.pdf
    • https://cdn.shopify.com/s/files/1/0437/1713/2456/files/53513786348.pdf
    • https://cdn.shopify.com/s/files/1/0439/4316/6107/files/54985707720.pdf
    • https://cdn.shopify.com/s/files/1/0431/5663/5816/files/gwent_old_pals.pdf
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/p4merge_git_windows.pdf
    • https://cdn.shopify.com/s/files/1/0433/5396/4712/files/curso_de_violo_para_iniciantes_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0445/2987/7151/files/employment_law_uk_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/5545/6164/files/73008990131.pdf
    • https://cdn.shopify.com/s/files/1/0427/7963/9967/files/fufegedovidere.pdf
    • https://cdn.shopify.com/s/files/1/0439/0263/2104/files/77495114699.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
stream_004_off00009c35.bin
73131b54be648511a41b18a1252a9c5a85c054f1b5a218703211668144ca0c93		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x9C35 5284 bytes
font_01_sfnt_off0000ae8c.bin
15596bd5494c753196a7d4dbeed678efce23a7f773396e47cd1eb2e56c3c6e80		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAE8C 5272 bytes
font_02_sfnt_off0000c07b.bin
b835ee126c74b136c47d0e868458fa1ca17cef97f8f5a8feb425ac16412ee9ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC07B 10600 bytes

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