PDF malware analysis — malicious · 01d2fec18776beee

MALICIOUS

PDF

35.6 KB Created: 2020-08-30 20:13:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0124fea9865589efca17e5e0ccad5e65 SHA-1: adbdd91b4cd3f570ccefac019e4c0b698f485213 SHA-256: 01d2fec18776beeebd21bbf6d98aa30eda1d820f163e49a4d523b7c74d8d2802

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains numerous links, masquerading as sheet music, to a link farm hosted on Shopify and other domains. One of these links redirects to known malicious infrastructure at 'ttraff.cc', indicating a phishing or malware distribution attempt. The ML classifier strongly supports the malicious verdict.

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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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=green+finch+and+linnet+bird+sweeney+todd+sheet+music
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76957488457.pdf
- https://cdn.shopify.com/s/files/1/0431/5866/7430/files/15946414897.pdf
- https://cdn.shopify.com/s/files/1/0429/7415/0809/files/14815809362.pdf
- https://static.usrfiles.com/ugd/aef5b7_3de9cec57f704433ad27e59316116b5a.pdf
- https://static.usrfiles.com/ugd/b8c837_93dae03bf6514f08b27d70aaf29ecec3.pdf
- https://static.usrfiles.com/ugd/cbdbb6_a8a8304ee4b0460bb79c06acd12b93e9.pdf
- https://static.usrfiles.com/ugd/6da380_044d100fcfae4668825eeda09bdb2e5f.pdf
- https://static.usrfiles.com/ugd/c345b0_82c558cc33434b68864e64df817c78bc.pdf
- https://static.usrfiles.com/ugd/b8c837_09037ec7e8bd496e9e45fd49e8486b61.pdf
- https://static.usrfiles.com/ugd/b8c837_bb380bb1c1604d919fc7f578b11247ff.pdf
- https://static.usrfiles.com/ugd/b8c837_83b9462286874da28ee99fd604e281d4.pdf
- https://static.usrfiles.com/ugd/77941b_45b4559645f8490d8ef474b4659eda10.pdf
- https://static.usrfiles.com/ugd/b8c837_87d4afba8bcf4aff8f54b9396dfdaab7.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/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004c6e.bin` `2ee994117bb3a3925d93b98cc354c9373d2f47fde6dd83c9d5ba484132dc320c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4C6E	5628 bytes
`font_01_sfnt_off00005f74.bin` `6a980f82e6f03088cb7ffda5996851eb344a44c08c08f1fd251d38bd5c675dbd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F74	9916 bytes

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