PDF malware analysis — malicious · 87d9481703efa51d

MALICIOUS

PDF

40.7 KB Created: 2020-08-30 23:48:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 45395d6658645d39732cc2877152a1f3 SHA-1: 58e1c737c5f7b66fa43dc2a51ff262bccc9f595e SHA-256: 87d9481703efa51d6a7920694cd103a660b586f6787ac8b7efbe6a8227030405

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a large number of embedded links, including one to a known malicious redirector at 'ttraff.com'. The document's theme appears to be a lure, possibly related to 'Mad max map key', to encourage users to click on these links. The ML classifier strongly indicated maliciousness, and the presence of numerous external links suggests an attempt to direct users to potentially harmful 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.com/wix?keyword=mad+max+map+key
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/7671/3637/files/85556430799.pdf
- https://cdn.shopify.com/s/files/1/0432/2141/8147/files/menefoxiji.pdf
- https://cdn.shopify.com/s/files/1/0433/0763/0747/files/39792913330.pdf
- https://cdn.shopify.com/s/files/1/0441/4645/8776/files/41965183817.pdf
- https://cdn.shopify.com/s/files/1/0431/6761/3089/files/zojetefipa.pdf
- https://static.usrfiles.com/ugd/b8c837_87a516062ef44e1086815e32c2978577.pdf
- https://static.usrfiles.com/ugd/b8c837_fcd4a41a79af447bb24ddede2b7f64e0.pdf
- https://static.usrfiles.com/ugd/a771bd_540140910ddf4681867a4bcc55631220.pdf
- https://cdn.shopify.com/s/files/1/0440/5110/3894/files/19319409820.pdf
- https://cdn.shopify.com/s/files/1/0432/4330/7175/files/60536178115.pdf
- https://cdn.shopify.com/s/files/1/0427/9740/0223/files/dumosefananevonox.pdf
- https://cdn.shopify.com/s/files/1/0435/4048/0164/files/mavub.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_off00006210.bin` `9fc5915198338ba3449981d779ac609a740ef725d7bd8d5978877a2c588d4b9b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6210	5036 bytes
`font_01_sfnt_off0000733d.bin` `c89b5639a5b01f7511190210f79e4b908b816659cc69f58a74536f573822ba01`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x733D	10412 bytes

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