Malicious PDF — malware analysis report

Static analysis result for SHA-256 b00ff9fa725cad04…

MALICIOUS

PDF

42.3 KB Created: 2020-10-12 00:39:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 262cf374e3f73e6f903a520e1759eae0 SHA-1: 6cfc653f67fb03764be3864b1174036381194cbe SHA-256: b00ff9fa725cad04ca39da7cd17f6f7b96401c6eae7004cb8b86e65d198f4240
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://cctraff.ru/strik?keyword=mass+effect+3+cheats+pc+console In PDF document text
    • https://site-1038831.mozfiles.com/files/1038831/42010154312.pdfIn PDF document text
    • https://site-1036950.mozfiles.com/files/1036950/64808479092.pdfIn PDF document text
    • https://site-1040259.mozfiles.com/files/1040259/54002002050.pdfIn PDF document text
    • https://site-1036676.mozfiles.com/files/1036676/berivota.pdfIn PDF document text
    • https://site-1038477.mozfiles.com/files/1038477/25596048725.pdfIn PDF document text
    • http://files.highwoodchamber.com/uploads/1/3/0/8/130813416/ceb2962414b9.pdfIn PDF document text
    • http://files.dangerous.studio/uploads/1/3/2/8/132815748/gomixilugojigabugat.pdfIn PDF document text
    • http://jusim.87reunion.com/uploads/1/3/1/6/131637255/buwab.pdfIn PDF document text
    • http://files.givingandreceivinginhealthcare.com/uploads/1/3/1/4/131406082/meganis-bozuwenikifik-safuvagawalona.pdfIn PDF document text
    • https://site-1038326.mozfiles.com/files/1038326/zaroza.pdfIn PDF document text
    • https://site-1037227.mozfiles.com/files/1037227/bunizotojigulovaluzafawis.pdfIn PDF document text
    • https://site-1039768.mozfiles.com/files/1039768/79620394770.pdfIn PDF document text
    • https://site-1037262.mozfiles.com/files/1037262/33315510325.pdfIn PDF document text
    • https://site-1039472.mozfiles.com/files/1039472/meperelezuli.pdfIn 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/1/0438/7074/8827/files/jenujotifetoforo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9669/7749/files/till_vs_until_time.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/3095/7208/files/nobatujegexupujip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/7013/0849/files/jatoxufubut.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67FD 5176 bytes
SHA-256: 4520f9bbde363b10ce97a52b1279ce370826d8b3cb81ff570e2d6c2e4c430d0b
font_01_sfnt_off0000799b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x799B 10056 bytes
SHA-256: 3073dc2a453dc73eae45f42fcdb4d28a65103ee407fa64870041d4f1ec8a4d05

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