PDF malware analysis — malicious · 0eab178ac97d52e1

MALICIOUS

PDF

32.0 KB Created: 2020-09-05 18:59:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 82d8aa04f560d4f69fe268a0fb2d961e SHA-1: 2df8ef63fe9c437c43e30a0af352e19d7ff179a7 SHA-256: 0eab178ac97d52e1d39dc33b119adf6b81e4a54a2e427d6319b149e6221408bd

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically 'https://ttraff.link/wix?keyword=abide+with+me+pdf+satb'. It also exhibits characteristics of a PDF link farm, embedding numerous external links. The ML classifier strongly supports the malicious verdict, indicating a high likelihood of this PDF being used to distribute further malicious content or lead users to phishing sites.

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.link/wix?keyword=abide+with+me+pdf+satb
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_b0488c9653454262809efc29948d737d.pdf
- https://static.usrfiles.com/ugd/115d6e_d161421756a0427387a3b7c5092536fd.pdf
- https://static.usrfiles.com/ugd/739437_ef1fd9fd3413450d84d45e98f6633694.pdf
- https://cdn.shopify.com/s/files/1/0431/0168/3865/files/80399191769.pdf
- https://cdn.shopify.com/s/files/1/0427/6633/6167/files/40696750961.pdf
- https://cdn.shopify.com/s/files/1/0434/3165/7638/files/kexegu.pdf
- https://cdn.shopify.com/s/files/1/0458/1323/5878/files/iw4play_launcher_download.pdf
- https://cdn.shopify.com/s/files/1/0437/5301/3409/files/34489529097.pdf
- https://cdn.shopify.com/s/files/1/0433/2938/8699/files/pedinunufigositi.pdf
- https://cdn.shopify.com/s/files/1/0431/0463/2992/files/2388864482.pdf
- https://cdn.shopify.com/s/files/1/0435/3739/9957/files/24624438245.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_off000040a0.bin` `18f3baa0203b73f6e85c8ef175c19d8d9bbbde2af9d4dfd6965299f0aec8d677`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x40A0	5372 bytes
`font_01_sfnt_off000052d1.bin` `ef740c3685e741ff066413dedf5f973504eba3e9bac4ca92529eba4b9ce6a8cd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x52D1	9664 bytes

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