PDF malware analysis — malicious · 7508d295d70dd2ff

MALICIOUS

PDF

53.0 KB Created: 2020-09-05 19:29:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 89087d27ab0fcaebcb52b1f70b7b3733 SHA-1: 4e02f29f7f2c7bd3344904b6232c4733686c64e3 SHA-256: 7508d295d70dd2ff66b5d261e227dad3f471325b8edf0771b28d83a0dadc91dc

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, with a critical heuristic identifying it as a PDF link farm. One of the primary links, 'https://ttraff.me/wix?keyword=ankhsvn+2.+7', is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to malicious infrastructure, likely as part of a phishing or content-luring campaign.

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.me/wix?keyword=ankhsvn+2.+7
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/e4ff69_65640ec4e60c4ad7ac7aceed16b4a4a5.pdf
- https://static.usrfiles.com/ugd/866690_5deb86fd8f6a4c85880b9a1ebfc23a8b.pdf
- https://static.usrfiles.com/ugd/685707_ac4a071dde3144b6a6dab17525403d4f.pdf
- https://static.usrfiles.com/ugd/2f8cea_b35986aa595341069b30f69c5b19b59d.pdf
- https://static.usrfiles.com/ugd/9d869b_116a65ea117b454db068a5f531c5c1fe.pdf
- https://static.usrfiles.com/ugd/696b8a_3a010f4f9eca44f5bb5706b189b5646a.pdf
- https://static.usrfiles.com/ugd/824332_875c0786a5f54eff84f9ab93aadaafb4.pdf
- https://static.usrfiles.com/ugd/defcb2_55a46ddc4bf24ddd96c9cd27c09733da.pdf
- https://static.usrfiles.com/ugd/e8506d_622c891a5a0b46cf83bafe829feb58da.pdf
- https://static.usrfiles.com/ugd/d2751c_b0b612edf989429fb228a14f322f04b5.pdf
- https://static.usrfiles.com/ugd/9c8fb9_3f41c06671e44884a04a693afeea0d6a.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_off0000939c.bin` `7615b5cea1161a47911cb18dade92a699311e647f718860681591fb28a124b13`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x939C	4792 bytes
`font_01_sfnt_off0000a405.bin` `9540e506d5a841aee8bf94c2b893de74d49521ace464169a2af456249fecad2e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA405	10420 bytes

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