PDF malware analysis — malicious · 20b22a3cc033533c

MALICIOUS

PDF

56.9 KB Created: 2020-08-12 00:20:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8a08aff1742b4cc970d427206f82b7eb SHA-1: 8cee7e63d8e0e738176ee4076d18e7db3d6f7d8c SHA-256: 20b22a3cc033533c68205c74ce82ad5ba1f2c5be3eace092f242e5969c139e7d

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=bach+cello+suites+pdf, which is used to redirect the user to potentially harmful content. The document also exhibits characteristics of a link farm, with numerous links pointing to external PDFs, suggesting an attempt to manipulate search engine results or distribute content from various sources.

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=bach+cello+suites+pdf
- http://mufoj.ikebanafuzion.com/uploads/1/3/2/8/132815110/5089588.pdf
- http://files.aftdoc.com/uploads/1/3/0/7/130739772/xipuxulizap.pdf
- http://files.spinetingle.co.uk/uploads/1/3/1/4/131437967/7146643.pdf
- http://files.joplatesnweights.com/uploads/1/3/1/8/131856827/seturoz.pdf
- https://cdn.shopify.com/s/files/1/0431/0610/7552/files/bifakexomobifovawu.pdf
- https://cdn.shopify.com/s/files/1/0438/7015/9016/files/47398051145.pdf
- https://cdn.shopify.com/s/files/1/0428/1312/8867/files/kazawuwogafalumet.pdf
- https://cdn.shopify.com/s/files/1/0429/1356/2787/files/32900256241.pdf
- https://cdn.shopify.com/s/files/1/0430/4178/3959/files/libajite.pdf
- https://cdn.shopify.com/s/files/1/0434/1461/8277/files/business_partnership_agreement_format.pdf
- https://cdn.shopify.com/s/files/1/0429/8987/9445/files/71292981891.pdf
- https://cdn.shopify.com/s/files/1/0434/7278/1478/files/zoviju.pdf
- https://cdn.shopify.com/s/files/1/0434/3064/1829/files/77171591642.pdf
- https://cdn.shopify.com/s/files/1/0435/2717/6344/files/auditoria_interna_unam.pdf
- https://cdn.shopify.com/s/files/1/0436/3878/4158/files/tepavan.pdf
- https://cdn.shopify.com/s/files/1/0435/8583/1070/files/kususamarerutu.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00008c70.bin` `508dda05a8b7cc3804957e3d65aaf23c3744c110c72b3165a5e4bd9da5929f4e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C70	5196 bytes
`font_01_sfnt_off00009e17.bin` `e7b9abde8a4aab8bfec8582b72992d6e8837bf1b0def3632db443e80267e4f23`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9E17	10120 bytes
`font_02_sfnt_off0000c0f9.bin` `15a68420f1c377824b8c1fd571ac7c30556db1b4bc05006bf44ec3f6c6c83208`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC0F9	16120 bytes

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