PDF malware analysis — malicious · 5364cc1b089fa6d8

MALICIOUS

PDF

30.4 KB Created: 2020-10-12 13:43:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22

MD5: 0edb01f8b17f509528cca9a78007c2ec SHA-1: 327223ba2ca7578f9e2f6e0bd41296db710124ca SHA-256: 5364cc1b089fa6d823b153265cff01dcd3c2f335d761002fa2d8196d8331478e

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

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://ggtraff.ru/strik?keyword=flixster+video+android+tv In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0471/0282/0502/files/percy_jackson_reyna_lemon_fanfiction.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5130/9473/files/barnsdall_ok_restaurants.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0483/3397/9811/files/nidaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0499/7952/3240/files/liftmaster_security_plus_receiver_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5571/7279/files/wuzupanajibe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0483/5767/1075/files/wotesuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5468/6620/files/monopoly_title_deed_cards.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5486/6333/files/fesaziziloladir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0483/9856/5533/files/83981388334.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0492/9434/4348/files/adventure_quest_builds.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0497/8412/7650/files/44050496765.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8021954e-d00f-4df4-aa20-ba7109c11c28/dexunuvedisibomibevep.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a31e184c-a8db-4d93-be1c-27639d988303/relixuxenewovudafaki.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a1e58394-4451-4ac5-9403-aa699bcc6dfb/sozijefibawok.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7eea4fc5-b36c-469b-879e-f86707a085e1/jivuwefezaxerekinadatizu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/97c14e10-9b8e-495d-9be1-1c0b8e92e1b9/kurezojalemuga.pdfIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006095.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6095	4900 bytes
SHA-256: `983b05663ac4faaffc1a47d9c963c0cce01c6a81f8b1035f2be1c9ab59a0f7f4`

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