PDF malware analysis — malicious · d229aa5e0706fbd4

MALICIOUS

PDF

58.3 KB Created: 2020-08-19 18:08:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b14475e6b1f5ab8da78279196024d980 SHA-1: f023a18655288700ca6e84abdf9f24897370001d SHA-256: d229aa5e0706fbd41b1499554384914d13e967aeb77c7e3b0afdfd92f9de75d6

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same URL as the malicious redirector. The PDF also hosts a large number of external links, many pointing to Shopify, likely as part of an SEO link farm to obscure the malicious redirector.

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=salmon+fishing+report+on+sacramento+river+ca
- http://files.petethepermie.com.au/uploads/1/3/1/3/131379951/jirazonoverub.pdf
- http://files.homestayadvisor.in/uploads/1/3/1/4/131406930/c822cff4.pdf
- http://tafiroze.katgaddis.com/uploads/1/3/0/8/130874601/ed4e03b5619a87.pdf
- http://vagupiwe.atlizmedina.com/uploads/1/3/1/3/131398591/e3e917d7ce55e.pdf
- http://fevatazo.forestlakescounseling.com/uploads/1/3/1/4/131406982/fe0fabb19a.pdf
- https://cdn.shopify.com/s/files/1/0429/4675/6774/files/47120848904.pdf
- https://cdn.shopify.com/s/files/1/0433/3859/6510/files/dadatas.pdf
- https://cdn.shopify.com/s/files/1/0433/6805/4940/files/bamejevesanuv.pdf
- https://cdn.shopify.com/s/files/1/0430/3542/6970/files/rexobimiterezilololekoj.pdf
- https://cdn.shopify.com/s/files/1/0434/4443/7144/files/88200649159.pdf
- https://cdn.shopify.com/s/files/1/0427/4470/9276/files/call_center_assessment_test.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/duzawubemamomavokam.pdf
- https://cdn.shopify.com/s/files/1/0431/1030/1847/files/15c_to_f.pdf
- https://cdn.shopify.com/s/files/1/0430/2641/5779/files/sozikividanokarobaxuvawen.pdf
- https://cdn.shopify.com/s/files/1/0436/4884/3934/files/78116537649.pdf
- https://cdn.shopify.com/s/files/1/0436/6227/8809/files/bamboo_plantation_project.pdf
- https://cdn.shopify.com/s/files/1/0431/0876/1764/files/atto_notorio_sostitutivo.pdf
- https://cdn.shopify.com/s/files/1/0433/1431/5422/files/fipezafonud.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_off0000a37f.bin` `adf497d440a96421e940ebaa49fe78953e6a0d37dae071de4fea15968a47e9b7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA37F	5592 bytes
`font_01_sfnt_off0000b65d.bin` `ac265799852b5e6c73fbd7f2675d6be0786ae5a513c7bc36c877caba1f3aa559`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB65D	11612 bytes

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