PDF malware analysis — malicious · 6d48af735671381a

MALICIOUS

PDF

39.5 KB Created: 2020-08-26 01:00:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 02165e36f5f2beb6e09c544a6e4367d7 SHA-1: 393cbe01dc6146e8552a4ae2c6e7b29a73fa1a66 SHA-256: 6d48af735671381ae426054cbd7a1506bf359c29b45ea6dedface133d07b9a68

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, including one pointing to a known malicious redirector, disguised as a 'leed core concepts guide'. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm suggests an attempt to distribute malicious content or phish users. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious lure.

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.club/pify?keyword=leed+core+concepts+guide+v4+pdf+free
- http://demul.forgecraftsteelfabricators.co.uk/uploads/1/3/1/4/131483152/natutipa.pdf
- http://vuloluwax.calvinchurchri.org/uploads/1/3/1/4/131406744/8f30d6a.pdf
- http://mafid.guesteyes.com/uploads/1/3/1/6/131637419/896619.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0463/8405/4427/files/libexuwozoden.pdf
- https://cdn.shopify.com/s/files/1/0430/0151/2090/files/tikavigokemugo.pdf
- https://cdn.shopify.com/s/files/1/0431/5326/0706/files/51172857730.pdf
- https://cdn.shopify.com/s/files/1/0429/3355/1260/files/19893059109.pdf
- https://cdn.shopify.com/s/files/1/0428/0382/2755/files/1126663826.pdf
- https://cdn.shopify.com/s/files/1/0428/0965/5462/files/acute_otitis_media_treatment_guidelines_idsa.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72163988246.pdf
- https://cdn.shopify.com/s/files/1/0428/9318/1095/files/74718482726.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_off00005b6e.bin` `af0a6a68a3378601d2c795e6c5e0fd73ae92d2f9d7354b250e02b3ae3f46c827`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5B6E	5168 bytes
`font_01_sfnt_off00006d25.bin` `7fbc281fda9ea0fb2d7e6e72adf2cc88cd1c4c6368f79c2d705d7b2f4686bd75`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6D25	10672 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.