PDF malware analysis — malicious · 4f22b229e694e40f

MALICIOUS

PDF

50.8 KB Created: 2020-09-01 15:51:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4af80b29db82561256b96e34560f6358 SHA-1: ab989ac2ebc83f2c2a36d6b6b5edc6c3f8ebb742 SHA-256: 4f22b229e694e40f8093b211ba035051fc26e7fd7353e94b0b2966f36a122a41

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was identified as malicious due to a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it contains links to known malicious redirector infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic fired, noting a mass of external PDF links within the document. The primary malicious URL identified is https://ttraff.ru/wix?keyword=guild+wars+2+guardian+build+guide, which is likely used for SEO spam or to redirect users to a phishing site. 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/wix?keyword=guild+wars+2+guardian+build+guide
- https://cdn.shopify.com/s/files/1/0460/0122/5895/files/24501225558.pdf
- https://cdn.shopify.com/s/files/1/0432/5064/7204/files/75607174797.pdf
- https://cdn.shopify.com/s/files/1/0428/6903/1078/files/dozifopanubazixa.pdf
- https://cdn.shopify.com/s/files/1/0435/4405/1864/files/18689860352.pdf
- https://static.usrfiles.com/ugd/c75f60_3671fc99fbec47d7bb69fec8add0c3a3.pdf
- https://static.usrfiles.com/ugd/bae363_2f3112bd0bfa4eb1a8f15b456416273f.pdf
- https://static.usrfiles.com/ugd/b8c837_89388f5bc41141d79636784783bf4555.pdf
- https://static.usrfiles.com/ugd/b8c837_f04ff70ac2c7404db8eb1046660cbc7d.pdf
- https://static.usrfiles.com/ugd/a3b54b_af31790c2e1549259c0153bc94c3ec06.pdf
- https://static.usrfiles.com/ugd/1ee69b_5b988d00711341078555430bb93dfe7a.pdf
- https://static.usrfiles.com/ugd/8de238_89f2c01236534b4684e435fb1b21e35e.pdf
- https://cdn.shopify.com/s/files/1/0431/5581/6599/files/fokaxinevemifi.pdf
- https://cdn.shopify.com/s/files/1/0431/1344/7584/files/75636506331.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00006676.bin` `9fc31c20e77bb1180ec0501ac86a7bf9af94df8e098fcae80d5b53e1e62709ca`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6676	5080 bytes
`font_01_sfnt_off000077cf.bin` `00a992999533d223f462ecf52598220b43440565fc4089ac16872eb28e781f7b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x77CF	10388 bytes
`font_02_sfnt_off00009b8b.bin` `e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9B8B	16092 bytes
`font_03_sfnt_off0000b053.bin` `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB053	4324 bytes

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