Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a02a9936c28f5bf…

MALICIOUS

PDF

42.9 KB Created: 2020-09-02 10:19:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b55d1ef3e7f69b495fd4e2937cfd4e10 SHA-1: 88f14686000f26dd2bb21c1d1daac243394a775f SHA-256: 9a02a9936c28f5bf95e3459d1b90aae9a0c314fa085d5850bfcbe863dfec5bf1
150 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector at 'ttraff.ru'. This redirector is likely used to obscure the final malicious destination and potentially track user engagement. The document body and heuristics indicate a lure related to 'after effects template free slideshow', suggesting a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=after+effects+template+free++slideshow
    • https://cdn.shopify.com/s/files/1/0438/5072/7584/files/retorika_bilang_isang_sining.pdf
    • https://cdn.shopify.com/s/files/1/0450/9827/0885/files/the_book_of_awakening_mark_nepo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9603/8812/files/zalovixoduvovifabupado.pdf
    • https://cdn.shopify.com/s/files/1/0432/0316/6369/files/70704748419.pdf
    • https://cdn.shopify.com/s/files/1/0438/0885/0081/files/apostle_chiwenga_sermons.pdf
    • https://cdn.shopify.com/s/files/1/0431/3228/9178/files/asuran_dhanush_bgm.pdf
    • https://cdn.shopify.com/s/files/1/0434/4971/2806/files/fogufil.pdf
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/12576669103.pdf
    • https://cdn.shopify.com/s/files/1/0431/2452/3170/files/fba_0._2._97._38_reference_set.pdf
    • https://cdn.shopify.com/s/files/1/0429/3692/6374/files/kupemofubaluwag.pdf
    • https://cdn.shopify.com/s/files/1/0447/5292/8919/files/metabolismo_bacteriano_de_carbohidratos.pdf
    • https://cdn.shopify.com/s/files/1/0429/9656/4131/files/24059915830.pdf
    • https://cdn.shopify.com/s/files/1/0432/1617/5263/files/nobozuxexewulopaludazud.pdf
    • https://cdn.shopify.com/s/files/1/0433/7179/0486/files/watermark_remover_from_free.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_off00006955.bin
71915eff6ad90ef5372d53f2948a78d5d7a5907335f9ee61a8eeb32d14e8dbc9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6955 5476 bytes
font_01_sfnt_off00007be0.bin
f47fb419e0d9f4e86e7535103fc6c4e6cc88d2a667f8ec944049077d392701f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE0 10156 bytes

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