PDF malware analysis — malicious · 6d03adf40dabfe06

MALICIOUS

PDF

85.5 KB Created: 2020-07-28 22:16:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9d9b3ebff861023c5255887383014ae1 SHA-1: e008d800a1e887af6489264291f1b3475822ff3c SHA-256: 6d03adf40dabfe066d92b744cd0b9a8091e2ddeb22257b90ef7767ce32d2ec2f

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to known malicious infrastructure, specifically a redirector service. The document body, though heavily obfuscated, appears to be a lure related to a video game guide, suggesting a phishing or scam attempt. The presence of multiple external PDF links, some pointing to benign Shopify domains and others to unknown hosts, indicates a link farm or content distribution strategy, likely to obscure the malicious redirector.

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.cc/pify?keyword=limbo+guide+warframe+2018
- http://files.matthewjacksonart.com/uploads/1/3/1/0/131070192/853b3b9b8.pdf
- http://files.kil-n-it.com/uploads/1/3/2/8/132815318/1950599.pdf
- http://files.balletclassique.net/uploads/1/3/0/7/130739747/3337450.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/4448/6824/files/84308048973.pdf
- https://cdn.shopify.com/s/files/1/0430/0016/8597/files/jireja.pdf
- https://cdn.shopify.com/s/files/1/0430/8267/8433/files/zuzajebixuw.pdf
- https://cdn.shopify.com/s/files/1/0441/1247/8360/files/pivufodovaxonomadi.pdf
- https://cdn.shopify.com/s/files/1/0429/8119/5927/files/95407155367.pdf
- https://cdn.shopify.com/s/files/1/0433/9276/2006/files/32726909408.pdf
- https://cdn.shopify.com/s/files/1/0427/9212/4572/files/93755686568.pdf
- https://cdn.shopify.com/s/files/1/0429/7906/6009/files/57379774099.pdf
- https://cdn.shopify.com/s/files/1/0437/7218/2685/files/81555091049.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_off00010ff9.bin` `12b7bc74d2627303b28e82bf514922452f813210f6b7ab537222dc8986869cfb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10FF9	5404 bytes
`font_01_sfnt_off0001226b.bin` `6fbf501add3ce439eb55845c3282330a9f70788a0091bb1f5792e20b3deb259f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1226B	11812 bytes

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