PDF malware analysis — malicious · 0ec81e86437042f5

MALICIOUS

PDF

39.3 KB Created: 2020-08-24 05:51:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 26cbce6d521b8c7043c0d4fc66a73e9b SHA-1: 2c01e11b5453bfb74dbd0d0c40847b83fa8da085 SHA-256: 0ec81e86437042f5e997f3ee3ddc375981649fd0439874bee8f3dab719faefdb

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which point to benign Shopify URLs, but one critical link directs to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=cnc+sheet+metal+folding+machine', which is flagged as malicious. This suggests the document is designed to lead users to malicious sites, likely for further exploitation or phishing.

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/pify?keyword=cnc+sheet+metal+folding+machine
- http://files.automobiliabybuck.com/uploads/1/3/1/6/131607029/metutozigami.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/1909/2647/files/jipazivese.pdf
- https://cdn.shopify.com/s/files/1/0463/0980/2146/files/bertazzoni_dishwasher_user_manual.pdf
- https://cdn.shopify.com/s/files/1/0433/9073/0398/files/nazewikebozog.pdf
- https://cdn.shopify.com/s/files/1/0438/3450/7424/files/gofula.pdf
- https://cdn.shopify.com/s/files/1/0432/0903/1840/files/3d_grapher_wolfram.pdf
- https://cdn.shopify.com/s/files/1/0431/2465/4241/files/42651271756.pdf
- https://cdn.shopify.com/s/files/1/0429/2925/8649/files/neoplasia_heptica.pdf
- https://cdn.shopify.com/s/files/1/0430/5590/6973/files/muborumuvax.pdf
- https://cdn.shopify.com/s/files/1/0432/9265/5782/files/fully_perforated_sheet_pan.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_off00005eb6.bin` `bf4b64ebb40b38c6e20baf4f5d156f7f762a9996faac147616a434a20a132442`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5EB6	5244 bytes
`font_01_sfnt_off0000705c.bin` `442c71589e9e906d818ed54e863a8fcc97137802217c8b49654b63d974c755f0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x705C	9564 bytes

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