Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0aaff4610a6b74f…

MALICIOUS

PDF

43.7 KB Created: 2020-08-18 15:43:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77c1bb2b685df0ee5eee117705ef5612 SHA-1: b220f04844e2eb1a560231c491bcde1df6c32197 SHA-256: f0aaff4610a6b74f68c2608ea5ae5c87a2d5213aad3a55215355edc23283e0d6
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used for SEO poisoning or to distribute malicious content. One of the extracted URLs, 'https://ttraff.com/pify?keyword=c+vector+template+type', is flagged as a known malicious redirector. The document body contains garbled text but also includes the same URL and a list of other URLs hosted on Shopify, suggesting a link farm or distribution mechanism. 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=c+vector+template+type
    • http://files.southbeacharts.org/uploads/1/3/1/4/131413550/subita.pdf
    • http://biwigev.orchardbros150.com/uploads/1/3/0/7/130776485/3749318.pdf
    • http://files.leedokyun.com/uploads/1/3/0/7/130739570/zuxojemo_raxidagisutob.pdf
    • http://foderawi.memortazavi.com/uploads/1/3/2/8/132814930/roninapiride.pdf
    • https://cdn.shopify.com/s/files/1/0434/6550/6966/files/canzoniere_italiano_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0437/9269/5456/files/atacand_hct_bula.pdf
    • https://cdn.shopify.com/s/files/1/0429/0281/4876/files/attitude_quotes_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0430/6917/8017/files/34047632752.pdf
    • https://cdn.shopify.com/s/files/1/0430/9558/9013/files/statistical_quality_control_by_mahajan.pdf
    • https://cdn.shopify.com/s/files/1/0435/6381/0975/files/barbour_t_shirt_size_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/85213016947.pdf
    • https://cdn.shopify.com/s/files/1/0430/0950/7487/files/tidozosakixeroxin.pdf
    • https://cdn.shopify.com/s/files/1/0437/1100/4821/files/rexton_hearing_aid_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/5054/8899/files/porugadolibiga.pdf
    • https://cdn.shopify.com/s/files/1/0432/5651/2667/files/zisowikovexezo.pdf
    • https://cdn.shopify.com/s/files/1/0429/9803/8679/files/defos.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_off000065eb.bin
fb7848b949a0f81be2a6c448f81c099e68cf509b18011e3a3b518cc89941a8cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65EB 4968 bytes
font_01_sfnt_off000076c0.bin
1e9baf1627ed5e149de3debfeb0bad44ecf877d18ea5a1c3498d5259af0bdd22		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76C0 13888 bytes

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