PDF malware analysis — malicious · a311282d98d51d98

MALICIOUS

PDF

44.5 KB Created: 2020-09-05 01:46:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 46486779ba249108adfbc5d60a1a677f SHA-1: 2ae595c5547e82bc03d833a9165aab15bba4d5a8 SHA-256: a311282d98d51d9846c1f0117ffba0e77b42ebf4d35063e6734c163e8918f019

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. Additionally, PDF_SEO_LINK_FARM indicates a large number of outbound links, likely for SEO manipulation or to obscure the malicious destination. The primary malicious IOC is the redirector URL. No scripts were extracted from this sample.

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.me/pify?keyword=mainsheet+systems+harken
- https://cdn.shopify.com/s/files/1/0431/0905/6668/files/85920821593.pdf
- https://cdn.shopify.com/s/files/1/0431/4333/2000/files/24788219367.pdf
- https://cdn.shopify.com/s/files/1/0437/4750/8385/files/efectos_de_la_contaminacion_del_aire.pdf
- https://cdn.shopify.com/s/files/1/0433/6310/6968/files/18965952089.pdf
- https://cdn.shopify.com/s/files/1/0433/2496/5019/files/69775002325.pdf
- https://static.usrfiles.com/ugd/5b9a87_add1d0a8735a4b6e9d3e18c16457268f.pdf
- https://static.usrfiles.com/ugd/bae363_82da877c918444e393e3298c573e2cd3.pdf
- https://static.usrfiles.com/ugd/934fc3_505846354ce642fe8597ad575eca67d9.pdf
- https://static.usrfiles.com/ugd/930050_96c742e8f30946b18a969eef91b56e90.pdf
- https://static.usrfiles.com/ugd/1849a1_fc1ce5c6d39a4e1b9e7c6b3a5c60636f.pdf
- https://static.usrfiles.com/ugd/66c878_e8bd78ee8aa448b1a663dd8e1c17fff3.pdf
- https://static.usrfiles.com/ugd/cc3ca9_59127b4bfca944b68c62316a33e07997.pdf
- https://static.usrfiles.com/ugd/1cc7e8_dbb0e6bc748449048e743137db6346a4.pdf
- https://cdn.shopify.com/s/files/1/0432/0083/9841/files/convert_na_to_0_in_r.pdf
- https://cdn.shopify.com/s/files/1/0432/6857/1294/files/ateneo_application_form.pdf
- https://cdn.shopify.com/s/files/1/0437/6612/0602/files/programme_ectomorphe_prise_de_masse.pdf
- https://cdn.shopify.com/s/files/1/0434/2553/0005/files/cdc_guidelines_flu_prophylaxis.pdf
- https://cdn.shopify.com/s/files/1/0429/3656/5923/files/building_permit_form_philippines.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006f2e.bin` `b4cf3ca9c9961738a86c4bb9b898792f97429b9af5c6079f9dfd4f1daf7154cf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6F2E	5064 bytes
`font_01_sfnt_off0000804b.bin` `0fd51865a356fcbfa7e55213d398bfe23562ecd30a03764446c0edc71f175c59`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x804B	10876 bytes

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