PDF malware analysis — malicious · f4d297ba2e6ff897

MALICIOUS

PDF

48.8 KB Created: 2020-07-19 10:28:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 656f210b01d31d6c481d3ba59bbe5c89 SHA-1: b81304c643df601254bda8d5bee2a9952ed55740 SHA-256: f4d297ba2e6ff89775e2960ae00b04fa0ed2c16fccffe8efd2b90e684d5f489e

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=reduce+pdf+size+acrobat+standard+dc', which is likely used to redirect users to further malicious content. The document body, though heavily obfuscated, contains text related to PDF size reduction, suggesting a social engineering lure.

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.cc/pify?keyword=reduce+pdf+size+acrobat+standard+dc
- http://files.marvinehowe.com/uploads/1/3/0/7/130775396/gogisosawa.pdf
- http://files.winniegivot.com/uploads/1/3/1/8/131871556/35eb18c54d63060.pdf
- http://files.thesavvywineshopper.com/uploads/1/3/1/6/131636689/lixevukepe.pdf
- http://files.robertsgreenhouse.net/uploads/1/3/1/0/131070035/vukaxalik.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98559129476.pdf
- https://cdn.shopify.com/s/files/1/0435/5427/5479/files/nowoxalexetozodowusevimi.pdf
- https://cdn.shopify.com/s/files/1/0431/9641/6160/files/79527381817.pdf
- https://mozujunovuj.files.wordpress.com/2020/06/71795939425.pdf
- https://funiwakux.files.wordpress.com/2020/07/tazagi.pdf
- https://sofuvono.files.wordpress.com/2020/06/64462339740.pdf
- https://cdn.shopify.com/s/files/1/0431/5725/8395/files/35259235687.pdf
- https://cdn.shopify.com/s/files/1/0427/7259/4844/files/59186710983.pdf
- https://cdn.shopify.com/s/files/1/0427/5005/0460/files/wumanidowol.pdf
- https://cdn.shopify.com/s/files/1/0428/1594/6911/files/domodapugekopag.pdf
- https://cdn.shopify.com/s/files/1/0431/6397/5842/files/zorenajetizuxeriz.pdf
- https://cdn.shopify.com/s/files/1/0430/7314/2935/files/wobomasugarupuwavoget.pdf
- https://cdn.shopify.com/s/files/1/0431/5539/0630/files/71407137184.pdf
- https://cdn.shopify.com/s/files/1/0432/6054/3138/files/52189854610.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/
- https://mozujunovuj.files.wordpress.com/2020/06/71795939425.p

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00008230.bin` `23eb4b1d1cd04a15768178d2547c8639e3419d0f41aaabd1444f0465bd4c4c8b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8230	5196 bytes
`font_01_sfnt_off000093e8.bin` `1f2759d07966f9141329a329ce2e21d48e694b8047664e0d23aada2e10473364`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x93E8	9888 bytes

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