Malicious PDF — malware analysis report

Static analysis result for SHA-256 affad23f3fe069c0…

MALICIOUS

PDF

47.0 KB Created: 2020-10-13 13:44:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6d2def07bfdc62c03875a44033af58ce SHA-1: 1cdf251a5060f84f7c962aad29550e7de16b83e1 SHA-256: affad23f3fe069c0b35b5d902105ff5731a3dcc165d705d9301819846ebfb5b8
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=battery+comparison+android+phones In PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/baputedev.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/tixobenudofezibet.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/novovuxosijuzuz_wofabunutigepuw_dugulelura.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/1158663.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/a63fb.pdfIn PDF document text
    • https://site-1041784.mozfiles.com/files/1041784/33536814130.pdfIn PDF document text
    • https://site-1038971.mozfiles.com/files/1038971/vixopejusukevilos.pdfIn PDF document text
    • https://site-1036876.mozfiles.com/files/1036876/jiwodibujugefux.pdfIn PDF document text
    • https://site-1043167.mozfiles.com/files/1043167/29633715486.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/8593/5015/files/the_grand_orlando_resort_kissimmee.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1034/2563/files/multivariable_chain_rule_matrix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/3746/1160/files/10872994832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9709/5333/files/63430976270.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7157689c-14e6-4279-add6-499031dface9/35261595994.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5b0b9d6-7a45-466b-b3b2-dfc960d46f2a/6505589392.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14504c79-e0b9-47ce-bbe6-fca10b80236a/paxesokonovi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3015695b-98f7-4213-aaa4-3585c0235721/81359587713.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_off00007769.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7769 5432 bytes
SHA-256: 9ca26c1cb525cd11c1218e08552412281e835f5f8a53ce634776c6a9e17bb7d4
font_01_sfnt_off000089b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89B5 10944 bytes
SHA-256: 44dce9ebbdeb085c67dec0a55833187f2fd73aa6a5ac319f907e452019496fce

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