Malicious PDF — malware analysis report

Static analysis result for SHA-256 24a2666c08b16706…

MALICIOUS

PDF

63.0 KB Created: 2020-12-14 18:22:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 2c3f4f3d8e9f0745b88759cff19274d6 SHA-1: fb50beffacae3ad80905d4a618f901df7281528e SHA-256: 24a2666c08b167063bc4e1c97b5e70d81333a085b711ef4ddec148c63fe8e275
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ggtraff.ru/123?utm_term=child+of+god+cormac+mccarthy+reddit In PDF document text
    • https://dakufosaxem.weebly.com/uploads/1/3/4/7/134771611/raxugolobevivud_ledabevirux_fafataxirasimav_woxifogo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389080/normal_5fa65861b152a.pdfIn PDF document text
    • https://lurevovikofa.weebly.com/uploads/1/3/4/6/134693735/namisemotag.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403673/normal_5f912d35bf3f4.pdfIn PDF document text
    • https://gukijofajileraw.weebly.com/uploads/1/3/4/3/134392650/9453443.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/toguvaju/39676508291.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5458bbdb33045eedefd2a/t/5fd6437e7fc52c20691fcc13/1607877502785/italian_phonetic_pronunciation_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc066bd9955c744b5390948/t/5fc456073485235c8650d036/1606702599744/fire_staff_upgrade_code.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc00635ff13940aa23ad6dd/t/5fc1317b145a8629dcdc1b8b/1606496635812/22051486861.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc321bf8787e879897a7fba/t/5fcdcc6ea87f9f1b19fa02b0/1607322735149/kung_fu_panda_3_kai_vs_po.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90a6ba3e-367e-4d90-9b68-a8626673a18b/long_langstroth_hive_plans.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf747b59-af0c-4cb6-8a34-acbf44471ee1/liwobarazizudizova.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2b383084698658e69ee35/t/5fcbdc256fd93023bc11028d/1607195686482/funny_gifts_for_friends_uk.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc37324df132613bbcddee0/t/5fcc6f9e1e1a4d7de122bda0/1607233439071/sezizexotimavitojetexo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fceaf7ceb0bb74023f8084e/t/5fd025853bcf75077a7841d3/1607476615484/22672589222.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_off0000bba5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBA5 5264 bytes
SHA-256: f6b497b23585a9dbb86fc8324691a0929c42e937558df8551e7b4de109d39c33
font_01_sfnt_off0000cd67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD67 9864 bytes
SHA-256: 3b88edd4b8e36ea60c74673fb0a4cfff9dbf7e5fea7a83a9b3f3388f583a995e