PDF malware analysis — malicious · 4f0f45e78f153f1b

MALICIOUS

PDF

54.2 KB Created: 2020-08-09 06:50:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b4fdd3275851f6c00002cc2c0eda32d8 SHA-1: a444621918a962eb0ce7b99f18c2cca855153a78 SHA-256: 4f0f45e78f153f1bc03ae01320421edfe7a4b8e47c08d97362891d390460f510

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting seemingly benign PDFs, but also includes a critical link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=all+constant+values+in+physics+pdf'. This suggests a link farm or SEO poisoning tactic designed to drive traffic to malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious.

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.ru/pify?keyword=all+constant+values+in+physics+pdf
- http://files.jumpforjoymemphis.com/uploads/1/3/0/8/130813646/xojoxubasivonidexo.pdf
- http://files.lynnespaintings.com/uploads/1/3/2/6/132681164/d610932448.pdf
- http://files.motisbusinesscentre.com/uploads/1/3/2/7/132740327/3625901.pdf
- https://cdn.shopify.com/s/files/1/0430/7235/6514/files/nefejanogafomigavobire.pdf
- https://cdn.shopify.com/s/files/1/0431/0233/9232/files/gimemusemodiw.pdf
- https://cdn.shopify.com/s/files/1/0448/1833/3858/files/vexenojuvip.pdf
- https://cdn.shopify.com/s/files/1/0431/5430/9284/files/saxon_advanced_mathematics_answer_key_online.pdf
- https://cdn.shopify.com/s/files/1/0438/9090/1144/files/sotuxifedag.pdf
- https://cdn.shopify.com/s/files/1/0431/3926/8770/files/pawumenib.pdf
- https://cdn.shopify.com/s/files/1/0432/2764/4072/files/44525430790.pdf
- https://cdn.shopify.com/s/files/1/0435/4854/1079/files/summoners_war_ragdoll.pdf
- https://cdn.shopify.com/s/files/1/0430/4715/7914/files/paximiluvepuz.pdf
- https://cdn.shopify.com/s/files/1/0439/3605/5454/files/pdf_file_app_download_free.pdf
- https://cdn.shopify.com/s/files/1/0428/4016/2467/files/40067820044.pdf
- https://cdn.shopify.com/s/files/1/0433/5393/1944/files/76312754293.pdf
- https://cdn.shopify.com/s/files/1/0434/2313/7957/files/jamimisa.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_off00007078.bin` `24dd14617dee60646f715596b0cd27a9df7c4c16a2709e7b8b12932a45d3946f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7078	5300 bytes
`font_01_sfnt_off00008295.bin` `8a51bb0c776a613118a7466647c186db427aead8c7b289c8ecabc2322fbbf0d0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8295	16008 bytes
`font_02_sfnt_off0000b5b2.bin` `9a4042d6462110368b612657e84d720c6c3b02e481aa41e4b211d41b97f2df9c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB5B2	16176 bytes

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