PDF malware analysis — malicious · 8cde3c806faeb186

MALICIOUS

PDF

42.2 KB Created: 2020-11-04 00:29:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 835f93fb433c8d794adcb10143c861a1 SHA-1: e0264cf11b01fbd921734761b1baab3a169aea93 SHA-256: 8cde3c806faeb18623d429281df0c65c1fa858a3f8ebc36a578696206d02836c

92 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, 'https://cctraff.ru/strik?keyword=medicine+cat+herbs+list+warrior+cats', is the primary indicator of malicious intent. The document body, though heavily obfuscated, contains this URL, suggesting it's the intended lure. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

Nyx PDF Classifier malicious score 0.9993

Heuristics 2

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.
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://cctraff.ru/strik?keyword=medicine+cat+herbs+list+warrior+cats
- https://cdn-cms.f-static.net/uploads/4387932/normal_5f8e1fe7a1333.pdf
- https://cdn-cms.f-static.net/uploads/4372085/normal_5f891877cc5ab.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/vebogotexaf/rajirosame.pdf
- https://uploads.strikinglycdn.com/files/19b91812-e530-4c62-ae76-d8fdd68d32be/voruxijarewetif.pdf
- https://uploads.strikinglycdn.com/files/dc42c217-f9c5-4fee-be09-a5f2800d90d9/kariforizalori.pdf
- https://uploads.strikinglycdn.com/files/e866fa11-07b1-4b9d-bbae-182692b1c762/wupujubiwipupudinokisef.pdf
- https://uploads.strikinglycdn.com/files/d2db358b-9073-4919-b1a9-dce17b201e8e/zanomefepoxi.pdf
- https://uploads.strikinglycdn.com/files/54d58c9d-b582-45a2-8b85-44747edfdafa/kenuduvuxawezi.pdf
- https://uploads.strikinglycdn.com/files/7dbcda31-d01b-446b-b2f1-bbe7de9fa13d/5425774558.pdf
- https://uploads.strikinglycdn.com/files/d1abf0c2-18f7-4fd0-950d-68d3695966ad/43285793266.pdf
- https://uploads.strikinglycdn.com/files/9b1c9cca-e163-42db-849c-73c274901d3d/55531066047.pdf
- https://uploads.strikinglycdn.com/files/6fb174ca-9a43-4991-b141-cfb84471fa83/80778616097.pdf
- https://uploads.strikinglycdn.com/files/45b1368f-ef2a-4b30-a3e9-5c7194c5bd86/scale_map_of_the_solar_system.pdf
- https://uploads.strikinglycdn.com/files/8093e0db-fb7c-494c-b09b-aa99eeb4159c/the_three_stooges_spooks_1953.pdf
- https://s3.amazonaws.com/kigavanus/acclimatization_in_plant_tissue_culture.pdf
- https://uploads.strikinglycdn.com/files/a49f4062-dda4-4b91-94e8-003e2cdf620e/nopuzoromim.pdf
- http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007c3f.bin` `26b19ea5f2835ac88f7bd88daaa28c2b595e9f40356eae2531ae942073ce57c5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C3F	5264 bytes

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