PDF malware analysis — malicious · a2c679f1a2907933

MALICIOUS

PDF

53.8 KB Created: 2020-09-01 03:38:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bbf108bc65e205272872d7630702c7ec SHA-1: b59984f81a47ba71730e5c50bb51eababa48efbb SHA-256: a2c679f1a290793332a012b253b6be3fe9eea1d384a7894730fd59900ee048e7

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded external links, a technique often used for SEO poisoning to lure users to malicious sites. One critical heuristic identified a link to a known malicious redirector infrastructure at 'ttraff.com'. While many linked PDFs are benign, the presence of the redirector and the sheer volume of links suggest a malicious intent to drive traffic to potentially harmful destinations.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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/wix?keyword=farmington+nh+police+report
- https://static.usrfiles.com/ugd/b8c837_490aa790dd5a4d7a8d9506a8d4864a6d.pdf
- https://static.usrfiles.com/ugd/5b604d_c7770e95e5614daca45c8e501070c070.pdf
- https://static.usrfiles.com/ugd/d9d1f5_c2e6668b6add496d96b6d5207078fab8.pdf
- https://static.usrfiles.com/ugd/b8c837_4b170126640a4ddfae06d049f44bed7a.pdf
- https://static.usrfiles.com/ugd/bf0735_257a25f73fe3459e86a2005563e0284e.pdf
- https://static.usrfiles.com/ugd/d55797_985068e38bae4eb3bb1e3a88693c9a77.pdf
- https://static.usrfiles.com/ugd/4826f5_675d9b20bf254569ab8ae6069bc9ece9.pdf
- https://static.usrfiles.com/ugd/0ebc1f_6e1cb4f2af994ac8b3f9e6ea956fc6b0.pdf
- https://static.usrfiles.com/ugd/b8c837_59d6a22c28e24ac4a61b320cde793385.pdf
- https://static.usrfiles.com/ugd/b5472a_388d1de7532c461fb30c131b0cb6a450.pdf
- https://static.usrfiles.com/ugd/19103d_454cb556b71a4caa83c51806f74c0fd5.pdf
- https://static.usrfiles.com/ugd/b8c837_acfffb4ccc3644329500c1ea517f5368.pdf
- https://cdn.shopify.com/s/files/1/0433/8316/0995/files/91914187724.pdf
- https://cdn.shopify.com/s/files/1/0437/9151/5808/files/doxanusobunifasaxer.pdf
- https://cdn.shopify.com/s/files/1/0430/5872/5018/files/cheesecake_springform_pan_replacement.pdf
- https://cdn.shopify.com/s/files/1/0462/8440/6944/files/sudifovugemapoto.pdf
- https://cdn.shopify.com/s/files/1/0435/3314/0127/files/cames_os_lusadas.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00009484.bin` `d7fac6f525ab4bbb37f36e5d12a4a9e446f0de58f0b4baaecb201a7c7bf8e76f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9484	5124 bytes
`font_01_sfnt_off0000a5ce.bin` `05f83a9f253ecbb9a470765c8757cf02a2d3395419951396674e8e561bad7ac9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA5CE	10664 bytes

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