PDF malware analysis — malicious · 171c697334577914

MALICIOUS

PDF

34.4 KB Created: 2020-09-09 20:52:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 500ca0d491729f70e132456203e98fd8 SHA-1: 5e1c289a491fb37f0945db39d5e34361bc27a2b3 SHA-256: 171c6973345779146d0af39e5af44058116e1125b5e2c42e94bff1d33f0da260

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with one specifically pointing to a redirector disguised as a Panasonic bread maker manual. This suggests a phishing or scam attempt to drive traffic to malicious infrastructure. The ML classifier also strongly indicated maliciousness.

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.club/wix?keyword=panasonic+sd+206+bread+maker+instruction+manual
- http://peragux.committedtohim.com/uploads/1/3/2/6/132683286/c6669e8234568.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/8589/6609/files/facilities_coordinator_cv_template.pdf
- https://cdn.shopify.com/s/files/1/0434/4017/7308/files/simijawaxib.pdf
- https://cdn.shopify.com/s/files/1/0438/1959/7981/files/pricing_table_html_template_free.pdf
- https://cdn.shopify.com/s/files/1/0439/2773/2379/files/brainwashed_republic_free_download.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21244882445.pdf
- https://cdn.shopify.com/s/files/1/0427/5427/7532/files/kopolaxagozewusasixa.pdf
- https://cdn.shopify.com/s/files/1/0434/1107/9317/files/24409361505.pdf
- https://static.usrfiles.com/ugd/c722c2_3df1e83cae16430f9b298c5e32bd81ad.pdf
- https://static.usrfiles.com/ugd/4c1554_e69d4e9e7578455097efdc9bbc1e3688.pdf
- https://static.usrfiles.com/ugd/d63aaf_ad1621d1461c4e27a4605e24ce772257.pdf
- https://static.usrfiles.com/ugd/b8c837_654768dc757848ccb55b075d94197deb.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_off0000492d.bin` `71f6797bebeeb39d9f24417190cef979b2809e23fb0b7afd774f19028cc87c54`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x492D	5720 bytes
`font_01_sfnt_off00005c7e.bin` `3cce0e420412b76b854177870acbd3d684c6a809376ba3a8c9f67e49aa2c8fcb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5C7E	9428 bytes

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