Malicious PDF — malware analysis report

Static analysis result for SHA-256 1abbd5b5981ed5ed…

MALICIOUS

PDF

42.3 KB Created: 2020-10-03 00:59:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: edb63cb9b1ece66640a77c9d5df4123a SHA-1: 880922bbac74afdb1605274d974fab27ad9e9260 SHA-256: 1abbd5b5981ed5edd1b63b56d57986df2fa4b36acafb7077e564ef0b0d4a928e
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=sharepoint+2013+tutorial+for+developers+pdf In PDF document text
    • http://tufalara.lotusloveonline.com/uploads/1/3/1/4/131406893/bulunexa-sizajofirono-kalamovalodo-binijuxun.pdfIn PDF document text
    • http://files.thegoodlifebloggers.co.uk/uploads/1/3/0/7/130740049/e3253cb.pdfIn PDF document text
    • http://files.lalecheleagueofmichigan.org/uploads/1/3/1/4/131437601/vuvinikix-xoxagefebi.pdfIn PDF document text
    • http://pizasute.annechamberlain.com/uploads/1/3/2/6/132696067/1980259.pdfIn PDF document text
    • http://bomisu.aliceandhenrynaturals.com/uploads/1/3/1/4/131453019/f1453fec92d4.pdfIn PDF document text
    • http://files.tcrcatering.com/uploads/1/3/1/0/131070765/4ef1f.pdfIn PDF document text
    • http://files.odoriworld.com/uploads/1/3/1/4/131407445/rivubatawemerawexeji.pdfIn PDF document text
    • http://files.peppahead.com/uploads/1/3/1/4/131453907/tudiferop-dikodewevelox-xedagim-kulanabasesi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fb4c6be-8d2c-4f65-acde-58035f327d41/82399685103.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5bcdb063-8a19-4693-a12d-cf2f503b13a0/fanaropiresubisag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a028cb4a-07b1-42f7-a7df-4b535a59a192/kifajuvezad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9679/2471/files/rizaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/2170/9724/files/vegarikisogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/1512/1307/files/56071530743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7326/4030/files/pioneer_sp-pk52fs_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2347/3560/files/green_day_american_idiot_album_youtube.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_off00006648.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6648 5780 bytes
SHA-256: 08039b3c578255b7c69a9d0c43d0417586697e8e1f7a0efc0724aee7a7508e96
font_01_sfnt_off000079f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79F9 9960 bytes
SHA-256: e20bd5b70d15c3ad6bcff42ceef58c1a632c1ad61843def2630892525b8010e4

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