Malicious PDF — malware analysis report

Static analysis result for SHA-256 212a2de55dcd5015…

MALICIOUS

PDF

48.7 KB Created: 2020-08-14 21:12:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4deaabac1fe5a81352f3335135f4c250 SHA-1: 34a0e537423dbb4660e14ce0c7458cd8799ab6e1 SHA-256: 212a2de55dcd50151fc26e0f717af6d7fabd84db4301705df089b9ce6b8b6b70
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify-hosted PDFs, suggesting a link farm for SEO manipulation or traffic redirection. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=adda247+app+for+windows+8+free'. This indicates the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. 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.ru/pify?keyword=adda247+app+for+windows+8+free
    • http://files.oitsimapro.org/uploads/1/3/1/4/131453177/gudusevesajil.pdf
    • http://files.ilovemyminischnauzer.com/uploads/1/3/1/8/131856715/kimowojetuwoda.pdf
    • http://files.distinctiveautomotivesales.com/uploads/1/3/2/7/132740541/5695071.pdf
    • http://files.uintahonline.com/uploads/1/3/1/4/131454172/pinoruj-wumeviwi-zabelodarut-tujavojitak.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rabilividobakomitunaxizug.pdf
    • https://cdn.shopify.com/s/files/1/0434/6845/6088/files/73308293121.pdf
    • https://cdn.shopify.com/s/files/1/0427/9212/4572/files/35559508439.pdf
    • https://cdn.shopify.com/s/files/1/0432/1899/3307/files/53128840718.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sejil.pdf
    • https://cdn.shopify.com/s/files/1/0433/5363/7018/files/41946582767.pdf
    • https://cdn.shopify.com/s/files/1/0434/7609/1046/files/badlands_national_park_map.pdf
    • https://cdn.shopify.com/s/files/1/0439/4080/6811/files/migudupinaleb.pdf
    • https://cdn.shopify.com/s/files/1/0432/7853/2758/files/rigike.pdf
    • https://cdn.shopify.com/s/files/1/0433/0130/6526/files/latitude_and_longitude_by_zip_code.pdf
    • https://cdn.shopify.com/s/files/1/0431/5483/3564/files/bokunosuvixugajejatun.pdf
    • https://cdn.shopify.com/s/files/1/0432/1574/9281/files/kezatowemabiz.pdf
    • https://cdn.shopify.com/s/files/1/0428/2354/9094/files/tigurufabalifejer.pdf
    • https://cdn.shopify.com/s/files/1/0447/5971/1898/files/mlb_k_serial_key.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_off00007eb8.bin
72309e6183dd5e72fa861d2e3c4c7ba342a04286eac08645e8136098e9a0bd7c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB8 5576 bytes
font_01_sfnt_off000091db.bin
18dc4e98075e1cd543f035ce9d2f6f36098ee4125b8460e2845e913e0ee9e835
pdf-font-stream PDF embedded font (sfnt) at offset 0x91DB 10644 bytes