PDF malware analysis — malicious · b74f9e76b61a9bd0

MALICIOUS

PDF

42.8 KB Created: 2020-09-11 06:23:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9cb403ca5b2b4e154ce0d66efd33b282 SHA-1: 7f7b2f173cb2ab3689aa02bc32b10b85aee532e3 SHA-256: b74f9e76b61a9bd05ccff5da12f8eae038f85cfc32525bb1a88f0cf729289dc3

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.link/wix?keyword=platform+bed+designs+diy', is designed to lure users into clicking it. The PDF also exhibits characteristics of a link farm, embedding numerous other PDF links, likely for SEO manipulation or to host further malicious content. The ML classifier strongly supports the malicious verdict.

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.link/wix?keyword=platform+bed+designs+diy
- http://files.anotherlogonthefire.com/uploads/1/3/2/7/132741334/c4a083731fea94.pdf
- http://files.tntelitesportsacademy.com/uploads/1/3/0/8/130873735/vupigagufanim.pdf
- http://belivimer.acmechassisfactory.com/uploads/1/3/1/0/131070420/54d73a7a37ae903.pdf
- https://static.usrfiles.com/ugd/b8c837_2968bec767fc414990ff7115e05a105f.pdf
- https://static.usrfiles.com/ugd/d61b30_a9e6a9fed0b8498994f5c97d702a669a.pdf
- https://static.usrfiles.com/ugd/a18aa6_1c15c984bc6b481d941a22e6d6c6453a.pdf
- https://static.usrfiles.com/ugd/8c5bc8_361ca6d4ee3d4e2c8a507301a3fc52b7.pdf
- https://static.usrfiles.com/ugd/8a419d_097b9e119a9740d8b79bac674a3a4180.pdf
- https://cdn.shopify.com/s/files/1/0432/1925/5454/files/labosepevigovonerejom.pdf
- https://cdn.shopify.com/s/files/1/0435/2360/4631/files/excel_formula_to_convert_number_to_words_in_rupees.pdf
- https://cdn.shopify.com/s/files/1/0432/7941/7504/files/vetubutowimowidupid.pdf
- https://static.usrfiles.com/ugd/c722c2_2a2d3e6e037b4735aa6256d4caa6b554.pdf
- https://static.usrfiles.com/ugd/565485_3996caeb66ac4cf086d52d8ef5f0d721.pdf
- https://static.usrfiles.com/ugd/dd4472_21a8da937f14409da9549cf99e7d22de.pdf
- https://static.usrfiles.com/ugd/4479ed_24bfd8011ebb4234afcdc88de01a9256.pdf
- https://static.usrfiles.com/ugd/c0b427_40211182bba447aab03cc95e36fddad8.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_off000068fc.bin` `650272c6f6722cd807b50b8b501b55b41d7bec65eff8ab43f69866c4d225a7cc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68FC	5472 bytes
`font_01_sfnt_off00007b88.bin` `81311e5f58d33655fab0ad7142f3de25589104b43819f6a48eec27a8db74cb97`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7B88	10224 bytes

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