Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e1734c6d540773a…

MALICIOUS

PDF

47.1 KB Created: 2020-08-10 20:57:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56e7ef472bd0b2095794a95175a6fd78 SHA-1: f014341f2a92309bca8af63bdca3c117056c8422 SHA-256: 3e1734c6d540773a70e1825a971968c4d158c0660ad735d02e288a1cfc4e9b49
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL is https://ttraff.com/pify?keyword=brokeback+mountain+pdf+espa%25C3%25B1ol+descargar, which likely serves as a lure to download further content. The document body, though heavily corrupted, contains references to this URL and other Shopify links, reinforcing the link farm tactic.

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=brokeback+mountain+pdf+espa%25C3%25B1ol+descargar
    • http://xopevoras.heartawakemindfulness.com/uploads/1/3/1/0/131070581/tonakikivigu.pdf
    • http://files.peacefulthoughtstherapy.com/uploads/1/3/0/7/130739850/nokitixoguxo.pdf
    • http://rifudasep.bmystiic.com/uploads/1/3/0/7/130775320/narasus.pdf
    • https://cdn.shopify.com/s/files/1/0437/1054/6071/files/97065911026.pdf
    • https://cdn.shopify.com/s/files/1/0434/4017/7317/files/18862266015.pdf
    • https://cdn.shopify.com/s/files/1/0429/8578/3455/files/ruwupepaxa.pdf
    • https://cdn.shopify.com/s/files/1/0430/2009/1555/files/amines_neet.pdf
    • https://cdn.shopify.com/s/files/1/0428/5012/3943/files/59933599967.pdf
    • https://cdn.shopify.com/s/files/1/0437/6287/6565/files/88367423791.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gejazopemovaro.pdf
    • https://cdn.shopify.com/s/files/1/0429/8381/7375/files/97321236651.pdf
    • https://cdn.shopify.com/s/files/1/0434/0213/3656/files/8343455987.pdf
    • https://cdn.shopify.com/s/files/1/0432/9455/6324/files/arcdps_auto_update.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005552.bin
dcbbeef2e37797a47f5080bf12b0c2359f210b259dffc10976731bfbea0b266f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5552 5940 bytes
font_01_sfnt_off0000692a.bin
e08d3ef3e79b9f88d665594c8be47da207dea8387f735b328a3dedb8539e2bf2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x692A 2336 bytes
font_02_sfnt_off000073d2.bin
ab6381d3c601740c5f1ec587a62b3ee51b8586d25e3f19d49108f5afa809a031		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73D2 10456 bytes
font_03_sfnt_off0000979c.bin
9af6fc3bf9d751f70540aea0fa47faa159a3604992cda23d2adcda3ffc5346b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x979C 16092 bytes

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