PDF malware analysis — malicious · e6d7f7f8141c110a

MALICIOUS

PDF

48.2 KB Created: 2020-07-23 20:11:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bfb401b538710ac6fcefc11fe90e6589 SHA-1: c741a5353c71c731a9157a73d55c68f8b716428e SHA-256: e6d7f7f8141c110ad0d39e55afc0248e0836477bda71e2194f732930854f33b4

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a large number of external links, many pointing to Shopify domains, which is indicative of a link farm. One of the primary links, 'https://ttraff.cc/pify?keyword=autodesk+animator+dos', is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body appears to be obfuscated or corrupted, preventing a clear understanding of its direct user-facing content, but the link farm and redirector heuristics strongly suggest a malicious intent to drive traffic to harmful sites.

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=autodesk+animator+dos
- http://files.connieisakidis.com/uploads/1/3/0/8/130874679/kigabezesedom_difodejur_winiromikere.pdf
- http://files.emiscolorshoot.org/uploads/1/3/0/9/130969965/5b19ddd38c225b.pdf
- http://files.timelesshealthseattle.com/uploads/1/3/1/0/131070144/de9b45926d46.pdf
- https://cdn.shopify.com/s/files/1/0430/2657/9610/files/41588437586.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lipowu.pdf
- https://cdn.shopify.com/s/files/1/0434/7576/3353/files/44978304738.pdf
- https://cdn.shopify.com/s/files/1/0430/8130/2167/files/67697250338.pdf
- https://cdn.shopify.com/s/files/1/0437/1467/4841/files/41259182401.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25424470269.pdf
- https://cdn.shopify.com/s/files/1/0435/4995/0116/files/67149041588.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kefemomorevogik.pdf
- https://cdn.shopify.com/s/files/1/0440/9887/9640/files/59897579918.pdf
- https://cdn.shopify.com/s/files/1/0431/4074/3329/files/40937135811.pdf
- https://cdn.shopify.com/s/files/1/0429/5720/9753/files/medegogisiredofidosubaw.pdf
- https://cdn.shopify.com/s/files/1/0432/8249/7701/files/situpanojop.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/
- https://cdn.shopify.com/s/files/1/0437/1467/4

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007eaf.bin` `d482b2773dfcc5505042fcd810492b2cc23f441106832dfdfdc4f983bea8be1b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7EAF	4872 bytes
`font_01_sfnt_off00008f20.bin` `d084ee4939f094b34cf95eb765d51560110643248f2e75a8c22d7da5b72c41b3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F20	10588 bytes

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