PDF malware analysis — malicious · 0979fcb201f59c58

MALICIOUS

PDF

40.5 KB Created: 2020-08-18 23:46:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0d8bf5fefd05c1a18c11033a150e56a5 SHA-1: 0b39b8eaf0ab8bfdc8cc760bc4d13cc7b340f59c SHA-256: 0979fcb201f59c580cbb9cedbea63fcc2e0a55ff7b01b475ed2a66d45896ab24

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external PDF links, suggesting a link farm or content hosting strategy. The primary malicious URL identified is https://ttraff.cc/pify?keyword=bmpcc+6k+footage, which is likely used to redirect users to further malicious content. The document body contains obfuscated text and URLs, further supporting a malicious intent.

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=bmpcc+6k+footage
- http://geworur.sundownersadventures.com/uploads/1/3/0/8/130814328/9691193.pdf
- http://files.gphsmanufacturing.org/uploads/1/3/1/3/131380337/9b519b.pdf
- http://nuzofeje.megaciph.com/uploads/1/3/2/7/132740478/7174567.pdf
- http://lukuret.shophealthygoddess.co/uploads/1/3/1/3/131379552/25565.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/6717/9165/files/21010662738.pdf
- https://cdn.shopify.com/s/files/1/0428/6529/5526/files/47655385109.pdf
- https://cdn.shopify.com/s/files/1/0431/8278/4673/files/pharmaceutical_biochemistry_book.pdf
- https://cdn.shopify.com/s/files/1/0433/4115/2421/files/61355062906.pdf
- https://cdn.shopify.com/s/files/1/0446/2097/2195/files/62750522515.pdf
- https://cdn.shopify.com/s/files/1/0440/7584/3736/files/angeles_cantando_estan_letra.pdf
- https://cdn.shopify.com/s/files/1/0432/2571/0756/files/graco_x5_manual.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_off000060fb.bin` `8753beb105b84ea18e6ad0642fd7c184101d254e05f5c14660778e2cc89cdb7f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x60FB	5296 bytes
`font_01_sfnt_off000072f8.bin` `5cf48cf066f72b356888908711074ad9a21cca225cfc3a8deb86879089ffe7df`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x72F8	10240 bytes

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