PDF malware analysis — malicious · 8bbd9e364e4bf3fb

MALICIOUS

PDF

43.9 KB Created: 2020-09-01 22:18:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 02b23c70595d00c84c4048c9bde8e95a SHA-1: 32fd7f291b91c6daa4c7a245f907595447076441 SHA-256: 8bbd9e364e4bf3fb4c8a566583865f6802e3b50d8ae9aadda2592b9586d347c4

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded links, many of which point to a link farm hosted on Shopify. One of these links, https://ttraff.cc/wix?keyword=aircraft+aerodynamic+design+geometry+and+optimization+pdf, is identified as a malicious redirector. The document's content and structure suggest a social engineering attempt to trick users into clicking the malicious link, likely leading to further malware delivery or phishing.

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.cc/wix?keyword=aircraft+aerodynamic+design+geometry+and+optimization+pdf
- https://cdn.shopify.com/s/files/1/0432/3062/5950/files/napikus.pdf
- https://cdn.shopify.com/s/files/1/0437/8483/1125/files/87111679610.pdf
- https://cdn.shopify.com/s/files/1/0431/5286/7494/files/99646542283.pdf
- https://cdn.shopify.com/s/files/1/0463/6891/5617/files/japabibileranaburanaliwa.pdf
- https://cdn.shopify.com/s/files/1/0429/1202/2691/files/zesarolukage.pdf
- https://cdn.shopify.com/s/files/1/0461/7702/6201/files/lab_investigations_for_bleeding_disorders.pdf
- https://cdn.shopify.com/s/files/1/0441/1500/1496/files/lajekikokigixiluvem.pdf
- https://cdn.shopify.com/s/files/1/0433/0091/3310/files/85350582825.pdf
- https://cdn.shopify.com/s/files/1/0433/5144/1560/files/sagexonaduvabepesali.pdf
- https://cdn.shopify.com/s/files/1/0427/9966/1223/files/pajutafererarazaru.pdf
- https://cdn.shopify.com/s/files/1/0437/9590/6721/files/40599621153.pdf
- https://cdn.shopify.com/s/files/1/0432/5782/3390/files/12357836090.pdf
- https://cdn.shopify.com/s/files/1/0432/7289/6672/files/nibawe.pdf
- https://cdn.shopify.com/s/files/1/0430/9486/8122/files/guwuwibitulipazo.pdf
- https://cdn.shopify.com/s/files/1/0436/7237/1350/files/ligeroxononadi.pdf
- https://cdn.shopify.com/s/files/1/0431/6938/2557/files/occupational_health_download.pdf
- https://cdn.shopify.com/s/files/1/0431/2412/9952/files/86_trans_am.pdf
- https://cdn.shopify.com/s/files/1/0434/0881/8333/files/mivurikamoxulomor.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_off00006c6e.bin` `6ad55b461a11f77268642932093e9498d5c0eb81cb310b93e85410640a2829c4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6C6E	5584 bytes
`font_01_sfnt_off00007f76.bin` `470ec9a61f5dc553d66e4a799836269b1c6861933a071f84121bff91305dbc32`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7F76	10088 bytes

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