PDF malware analysis — malicious · eeefe5a8ce691ff6

MALICIOUS

PDF

41.6 KB Created: 2020-08-06 21:37:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c1d8dcfe1a7397aa9d66f17a4b85312a SHA-1: b9756a92b3a2117c069d0232cde88b2ae11d23aa SHA-256: eeefe5a8ce691ff63402f67ec1f76f14297e4b31c44c0f29f5c8c014478c489d

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a link to a known malicious redirector, ttraff.cc, which is designed to lead users to further malicious content. The document also features a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic to distribute malicious content. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URLs are sufficient to indicate a malicious redirection attempt.

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/pify?keyword=o+mio+babbino+caro+violin+pdf
- http://worow.creatables.ca/uploads/1/3/1/4/131453177/daretota_jidinurid_xilowibe.pdf
- http://files.problemsofhumanity.org/uploads/1/3/1/0/131071157/getibokixipapujomag.pdf
- http://rewezuju.ramseycountyfair.org/uploads/1/3/0/8/130874232/ee72b9a72.pdf
- http://files.rbartquarterhorses.com/uploads/1/3/1/3/131398419/1726783.pdf
- http://files.scoopsphotography.com/uploads/1/3/0/9/130969887/savadojulep.pdf
- https://cdn.shopify.com/s/files/1/0438/8962/3208/files/42064793467.pdf
- https://cdn.shopify.com/s/files/1/0428/8564/4447/files/44317428298.pdf
- https://cdn.shopify.com/s/files/1/0429/1559/4393/files/fanupuredatob.pdf
- https://cdn.shopify.com/s/files/1/0433/2906/1014/files/21553500265.pdf
- https://cdn.shopify.com/s/files/1/0433/4472/4133/files/44378154889.pdf
- https://cdn.shopify.com/s/files/1/0432/7433/8454/files/faxekaxovilo.pdf
- https://cdn.shopify.com/s/files/1/0431/4421/6727/files/kizuwubarunopitakufof.pdf
- https://cdn.shopify.com/s/files/1/0427/9166/5830/files/27626066833.pdf
- https://cdn.shopify.com/s/files/1/0439/6387/5486/files/cycling_cap_template.pdf
- https://cdn.shopify.com/s/files/1/0436/4160/2198/files/gun_blueprints.pdf
- https://cdn.shopify.com/s/files/1/0431/6463/1189/files/meture.pdf
- https://cdn.shopify.com/s/files/1/0430/8038/4674/files/33332504214.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/75877947267.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_off0000547e.bin` `d079541e03e581565eec33e7ccbb6fe05723a22adebd5bac669c7db3ce07cba1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x547E	5352 bytes
`font_01_sfnt_off00006698.bin` `16fb47ccbdb000ef1defbdb1597ad50331b66bc1e402cbf9f71d8bfad2fa7f64`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6698	15676 bytes

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