Malicious PDF — malware analysis report

Static analysis result for SHA-256 e02cee05ff3bb209…

MALICIOUS

PDF

60.5 KB Created: 2020-12-11 21:38:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 7b9eca3bbb76954437003cfabe886d80 SHA-1: ac9a289759392e5d3ecfa9334f53e4827b101951 SHA-256: e02cee05ff3bb20976c5fd0a9940256a89afa13009c64d859a3415bb5ca698e6
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffmen.ru/aws?utm_term=videohive+projects+for+free In PDF document text
    • https://nurigefisigutip.weebly.com/uploads/1/3/4/6/134628418/6936474.pdfIn PDF document text
    • https://nezejigon.weebly.com/uploads/1/3/4/6/134611081/dadafoxipeno.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445103/normal_5fb495b14dd24.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/wazagidonux/nezixuta.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc18713df132613bbc22f2b/t/5fc4ce81e6d49a06bb29d858/1606733442151/poulan_2150_chainsaw_repair_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/perimotodop.pdfIn PDF document text
    • https://s3.amazonaws.com/sitok/24409956866.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6fe2f44e997374a2a1ebd/t/5fc9ccedd7c3040d8731c46c/1607060718188/gasirofalogosubel.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/ranidugokafenuzumu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0eb456b97992eb55c2a22/t/5fc181c39ee0f32b878c05b7/1606517188461/rogebadusojowibi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc548af9955c744b5585162/t/5fce8e5d42bb946bd94a3bcd/1607372382690/54934103115.pdfIn PDF document text
    • https://s3.amazonaws.com/jusuberu/nofan.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2ef221452f90b7ff27d3c/t/5fc4b808e6d49a06bb278628/1606727689455/83088794462.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/2006_cbr1000rr_service_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7ad5c9d43d906ac0f37a4/t/5fcf037b14319a51dc27acd8/1607402363877/kamefekinuwofegozato.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_off0000af73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF73 5100 bytes
SHA-256: 1c69efefc2811ffccd7dae8e2bd5626491862a77ccdcd8a3501897b9301d547f
font_01_sfnt_off0000c0df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0DF 10608 bytes
SHA-256: 7ca1fff5aad19057155ac091e543d5c4c736f7d52a83f6e26bec942b2e2fdc9a

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