Malicious PDF — malware analysis report

Static analysis result for SHA-256 00f8312c936ee7b1…

MALICIOUS

PDF

42.0 KB Created: 2020-11-08 04:12:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 992e0241d29186f4cea43f89b9e89260 SHA-1: debc52aabedfa612b670e30d8d2f641d64a493de SHA-256: 00f8312c936ee7b140cd71ca6c811c32fefec22f980fcad6c6b007f670db67e7
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://traffine.ru/aws?keyword=profession+leveling+guide+wotlk In PDF document text
    • https://cdn-cms.f-static.net/uploads/4402722/normal_5f9ee7a34d6f0.pdfIn PDF document text
    • https://nikokabiliru.weebly.com/uploads/1/3/1/4/131409463/1289846.pdfIn PDF document text
    • https://givifajilodox.weebly.com/uploads/1/3/0/8/130874655/zozizawod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368251/normal_5f87b2df18422.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379370/normal_5fa5d79104910.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424997/normal_5fa0ce7203595.pdfIn PDF document text
    • https://fufivivol.weebly.com/uploads/1/3/0/8/130873849/f26647d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450140/normal_5f9ef5ffb99fc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379854/normal_5fa0a0e64df5e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416929/normal_5fa0321666ea2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387702/normal_5fa218a2249ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380226/normal_5fa710796fada.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b8878eb-2505-4c89-902e-bd6d5674d65a/jozizife.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8d5fdfb-769c-4824-bba4-eaa166cd2579/xujepa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6ca0e66-c2e5-44b5-9736-a15afdf70c4e/revature_study_guide.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65ED 5080 bytes
SHA-256: 1e64ac87c8c44af5779da364a8fbd90e44b4529b3559c97d8c2cd8e0df868985
font_01_sfnt_off00007765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7765 10452 bytes
SHA-256: 0541952874128daadfdbfaaaa13eb79b1326eee5c9a629217c7139b355268c8f

Open this report in the interactive analyzer, or submit your own file for analysis.