Malicious PDF — malware analysis report

Static analysis result for SHA-256 f60309e4ce795e3c…

MALICIOUS

PDF

51.7 KB Created: 2020-08-09 16:33:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7cd3f4c4506a6a1cb816ee0bd7bbfb9d SHA-1: 7913f6514971d5735c2ac110685ed9ca9ee8b7ba SHA-256: f60309e4ce795e3c891719ec36176f2b99dc03260db8e08ab16f156a34f369a2
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, includes the URL 'https://ttraff.ru/pify?keyword=mumbai+taxi+fare+chart+2020+pdf', which is flagged as malicious. This suggests the document's primary purpose is to redirect users to potentially harmful content. The presence of a link farm heuristic further supports the malicious intent of distributing links.

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=mumbai+taxi+fare+chart+2020+pdf
    • http://files.aceremovalsbusiness.com/uploads/1/3/2/7/132741535/revexamivifolosumiku.pdf
    • http://mexupe.rochin.com/uploads/1/3/1/4/131453540/4e18bfeb8.pdf
    • http://lodefa.gener8tionalconnections.com/uploads/1/3/2/7/132712615/vizunarutelexib_jipiluwekaj.pdf
    • http://files.violinvillage.com/uploads/1/3/0/7/130739456/3da03516c7.pdf
    • https://cdn.shopify.com/s/files/1/0437/2499/6758/files/10423078499.pdf
    • https://cdn.shopify.com/s/files/1/0431/6767/8618/files/el_capitalismo_karl_marx.pdf
    • https://cdn.shopify.com/s/files/1/0439/8622/3262/files/stress_and_the_general_adaptation_syndrome.pdf
    • https://cdn.shopify.com/s/files/1/0436/4389/5958/files/5823401080.pdf
    • https://cdn.shopify.com/s/files/1/0431/2625/9876/files/86253808651.pdf
    • https://cdn.shopify.com/s/files/1/0429/1064/6435/files/23742825966.pdf
    • https://cdn.shopify.com/s/files/1/0434/4646/8769/files/tinkers_construct_experience.pdf
    • https://cdn.shopify.com/s/files/1/0432/5805/2763/files/mov_to_gif_mac.pdf
    • https://cdn.shopify.com/s/files/1/0434/4633/7703/files/25634532633.pdf
    • https://cdn.shopify.com/s/files/1/0431/3337/0522/files/pamaserudug.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_off00006edf.bin
85de596889d582346fb12736919ea77db724b23b3ad496f389e88d6789c847c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EDF 5672 bytes
font_01_sfnt_off00008210.bin
520dfac8a462a4f31763186ec8c0388750d39189e8bff413d3f3105299df42ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8210 14944 bytes
font_02_sfnt_off0000b186.bin
4f8782d8eae9ba298f1b5c4c8a6899b63586550335ad5b1ec9e5d78f6980d991		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB186 3824 bytes

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