PDF malware analysis — malicious · ebe5c19967140e02

MALICIOUS

PDF

36.1 KB Created: 2020-08-30 19:01:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a7e945527f4a882a73e9326dbf7107c7 SHA-1: 1c01901d329ea8c63ecdf0d7bb222d50de8909f6 SHA-256: ebe5c19967140e0279249b74734bbdcd992f377bee1fc6aef63defe82ada05aa

158 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF document contains embedded JavaScript and a critical heuristic firing for a malicious redirector link. The primary link directs to 'https://ttraff.cc/wix?keyword=chronix+radyo+ak%25C4%25B1%25C5%259F%25C4%25B1+url', which is known malicious infrastructure. The document also exhibits characteristics of a link farm, with numerous external PDF links, suggesting an attempt to distribute further malicious content or engage in SEO manipulation for malicious purposes. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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 JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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=chronix+radyo+ak%25C4%25B1%25C5%259F%25C4%25B1+url
- https://static.usrfiles.com/ugd/b8c837_84db9e038b76482c880203a6b52351f6.pdf
- https://static.usrfiles.com/ugd/913720_0aeecf1cc6b94874b2fca716844f00bf.pdf
- https://static.usrfiles.com/ugd/fe83c3_b685544e0cf04375bf70ab9039e542a3.pdf
- https://static.usrfiles.com/ugd/2e16aa_04437cf45c2542c4a0d60567037e524a.pdf
- https://cdn.shopify.com/s/files/1/0438/5721/5648/files/fojisogo.pdf
- https://cdn.shopify.com/s/files/1/0431/2009/9488/files/jerelatezavafuko.pdf
- https://cdn.shopify.com/s/files/1/0432/4032/5282/files/barishain_atif_aslam.pdf
- https://cdn.shopify.com/s/files/1/0432/3947/3314/files/litewonizugojixutirip.pdf
- https://cdn.shopify.com/s/files/1/0434/2792/2076/files/mr_clean_magic_eraser_ingredients.pdf
- https://cdn.shopify.com/s/files/1/0432/9019/8180/files/vizomolujo.pdf
- https://cdn.shopify.com/s/files/1/0428/0070/9791/files/11604504200.pdf
- https://static.usrfiles.com/ugd/b58d21_21d8fd390b914e0b986f810cbd60ce5e.pdf
- https://static.usrfiles.com/ugd/097bd5_4a6c1bb7f34b499bb3dd6a1518320656.pdf
- https://static.usrfiles.com/ugd/b8c837_b798244337974331a7ca0fb43a6ad61f.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_off00004afc.bin` `395c1c85c45ef555a8b10ca43cfeba636c3138dcba126baa0739f59f74b6842f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4AFC	5152 bytes
`font_01_sfnt_off00005c80.bin` `013f7a3fd55a4cdf049ff49b53047bd7e63fd34e6057b3a8414848b2e3ec7a21`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5C80	12088 bytes

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