Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c1e7f8a66b58494…

MALICIOUS

PDF

63.9 KB Created: 2021-02-07 13:05:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: fb4aa9438a29f2046df04d5396c09d1c SHA-1: 6570ce2085f8425384adedff36f6fc6a1a173a79 SHA-256: 5c1e7f8a66b58494eee5877e4b5af76ad6b00145ebc8f152a34d65bf4ae6440c
196 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
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://seumenha.ru/wb?keyword=australian%20bushrangers%20worksheets%20free PDF link annotation
    • https://vaseviga.weebly.com/uploads/1/3/3/9/133986607/fa6702601db.pdfIn PDF document text
    • http://luminar4-download.xyz/68773829298q7jdh.pdfIn PDF document text
    • https://radunepik.weebly.com/uploads/1/3/4/6/134617153/f0675083f74718.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479462/normal_5ff257371b6ef.pdfIn PDF document text
    • http://dalkomis.website/begolipafupe0jpvy.pdfIn PDF document text
    • https://sikenobavusemel.weebly.com/uploads/1/3/2/6/132682861/tugemunuwuziz.pdfIn PDF document text
    • https://domemasajexal.weebly.com/uploads/1/3/5/3/135304114/2160322.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454575/normal_5fd7d6b8146f2.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/zupenafud/caramelldansen_japanese_version.pdfIn PDF document text
    • https://s3.amazonaws.com/ratixifo/informacion_general_de_los_arcaicos.pdfIn PDF document text
    • https://s3.amazonaws.com/sefipa/74664893896.pdfIn PDF document text
    • https://s3.amazonaws.com/mizeteb/nymphaeaceae_family.pdfIn PDF document text
    • https://s3.amazonaws.com/bisazabe/indiana_jones_4_2008_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/wamatasamegu/osmosis_in_red_blood_cells_lab_report.pdfIn PDF document text
    • https://s3.amazonaws.com/tesasubawalozan/gefilizavonivekeroxo.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/94928926787.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/latest_ios_for_macbook_pro.pdfIn PDF document text
    • https://s3.amazonaws.com/xefejevife/wusugerabitomavonefuda.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_off0000be6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE6F 5316 bytes
SHA-256: 522494cca8b82e0fa97fbda18cbdcd206b05cd0c4286127e8b12cd90d10ad7bc
font_01_sfnt_off0000d08e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD08E 9900 bytes
SHA-256: 3682c96a23b8ac244219d314640a19bb770d868ff783918e2d22ddd30176a5c5

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