Malicious PDF — malware analysis report

Static analysis result for SHA-256 614dc4aeea4175fa…

MALICIOUS

PDF

44.7 KB Created: 2020-10-31 06:24:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: 48243913f279df9378a2c1575d04fd5d SHA-1: 958f3d8ff6b1dab710a8bf9852a3c4d160b7b2ae SHA-256: 614dc4aeea4175faf66da767eca50a6f696ee4743fcff14d8863dd85c2e9581e
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://ttraff.me/123?keyword=fear+of+falling+in+love+phobia+name In PDF document text
    • https://rebolotor.weebly.com/uploads/1/3/4/3/134364816/sekako.pdfIn PDF document text
    • https://buritovetozew.weebly.com/uploads/1/3/4/4/134486370/vitosifaxagabew-kejanuruloj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415946/normal_5f9c9e9ebd944.pdfIn PDF document text
    • https://sadoxeliwuduw.weebly.com/uploads/1/3/4/0/134040540/97f54a543.pdfIn PDF document text
    • https://suzokixuvajix.weebly.com/uploads/1/3/0/7/130776208/jorumonat.pdfIn PDF document text
    • https://xukolewijox.weebly.com/uploads/1/3/4/3/134320036/40cf9296c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382208/normal_5f913ab6477e2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zikeko/23866315303.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/11595550549.pdfIn PDF document text
    • https://s3.amazonaws.com/megulu/atf_form_5330.20.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/1410/1413/files/regenerative_air_preheater.pdfIn PDF document text
    • https://s3.amazonaws.com/sevoga/hydrofoil_agitator_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/0476/2531/files/read_delta_of_venus_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/5616/9628/files/albinoni_adagio_score.pdfIn PDF document text
    • https://s3.amazonaws.com/sedimeraxufi/living_environment_regents_questions_by_topic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0872/0547/files/40154585683.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_off0000722a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x722A 5292 bytes
SHA-256: ae56d774f25cdeb2059f190b443473fb1581b3de2ec916b4089c8c68ba0d674e
font_01_sfnt_off00008412.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8412 10064 bytes
SHA-256: 3a5f9eae9585184801d1941c75dbd039799fcfc31ea20deefa8804c148a72a66

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