PDF malware analysis — malicious · a4a69dc7e81ad506

MALICIOUS

PDF

56.4 KB Created: 2020-08-09 13:22:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c1223ef1e5dc88d0cc5be739238587a8 SHA-1: ed104ca5f686827609ebe2971ea01f52dab867f9 SHA-256: a4a69dc7e81ad50641aa449527b38565cfe38afd56bf75802b87d98823d16790

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=asthma+action+plan+pdf+editable'. This URL is likely part of a phishing or malware distribution chain. The document also exhibits characteristics of a PDF link farm, with numerous embedded links to external PDFs, many hosted on Shopify. The ML classifier strongly supports the malicious verdict.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

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.
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=asthma+action+plan+pdf+editable
- http://files.caw.co.nz/uploads/1/3/1/4/131437956/93524b2d.pdf
- http://files.shearserenitysalon.com/uploads/1/3/1/3/131383553/53b9878d6b0f11.pdf
- http://files.dylanlipke.com/uploads/1/3/2/6/132682070/nokogituwizox_remate_xipuwotesukes.pdf
- https://cdn.shopify.com/s/files/1/0428/4104/7206/files/rufagebubefamuzojefejen.pdf
- https://cdn.shopify.com/s/files/1/0432/6454/0825/files/sonuwobodavonufipe.pdf
- https://cdn.shopify.com/s/files/1/0432/6955/4332/files/65029431757.pdf
- https://cdn.shopify.com/s/files/1/0436/0860/4829/files/miwox.pdf
- https://cdn.shopify.com/s/files/1/0438/5023/6064/files/52147741153.pdf
- https://cdn.shopify.com/s/files/1/0429/9977/5381/files/24700265181.pdf
- https://cdn.shopify.com/s/files/1/0430/3912/9751/files/65410830200.pdf
- https://cdn.shopify.com/s/files/1/0431/0099/5741/files/sifunerevobilepabunoruvi.pdf
- https://cdn.shopify.com/s/files/1/0431/2216/3876/files/86212148639.pdf
- https://cdn.shopify.com/s/files/1/0438/8634/6408/files/54879431113.pdf
- https://cdn.shopify.com/s/files/1/0432/5860/9817/files/labalepusatamubobituv.pdf
- https://cdn.shopify.com/s/files/1/0451/0574/1989/files/nanostructures_for_antimicrobial_therapy.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000073fd.bin` `a358f4c691201c37321fe3810529052df6e5d0c9a0f3eca22ca6ab9ea8a38904`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x73FD	13184 bytes
`font_01_sfnt_off00009e81.bin` `ee17ca02e180308b20ea4af52ba1d046ce7feac50ae56813cf7023b6752ac449`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9E81	5428 bytes
`font_02_sfnt_off0000b0d0.bin` `3f9e9882dc53812e7010a1c43817d7e38c2d819ed4f68387d46a83206bbe296d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB0D0	10308 bytes

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