Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eb8bbdfbe6fa438…

MALICIOUS

PDF

48.7 KB Created: 2020-10-06 08:53:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1cc4538f38205b924966c10d24147a05 SHA-1: 35c8df4ddffe65d3ae4cded4d784b9e2a06f2ee2 SHA-256: 3eb8bbdfbe6fa43842ff96b3996073e120ffbf63080b2f61d7f2c9a3c7af6bf3
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://ttraff.cc/pify?keyword=organic+architecture+art+history+definition In PDF document text
    • https://site-1039565.mozfiles.com/files/1039565/petazozadaxarifapeja.pdfIn PDF document text
    • https://site-1048222.mozfiles.com/files/1048222/fimugozave.pdfIn PDF document text
    • http://viteseve.derring-do-medals.com/uploads/1/3/0/7/130776356/dfd63.pdfIn PDF document text
    • http://files.paisanoperformance.com/uploads/1/3/0/7/130775813/luxanor-rifir-xododujifox-pidemaz.pdfIn PDF document text
    • http://negose.helenlloydaudio.com/uploads/1/3/1/1/131164104/gabet_sidexogaf_gumipilaxew.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0463/0691/8557/files/disorders_of_sensation_and_perception_ppt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2171/2034/files/the_storm_kate_chopin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7927/0549/files/75200221020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6028/8927/files/is_weed_a_stimulant_reddit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7938/4731/files/corona_del_sol_apartments_phoenix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8846/5051/files/instagram_bot_apk_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/6656/4254/files/91875390919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/2341/1611/files/feh_gamepress_summon_simulator.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000749f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x749F 5264 bytes
SHA-256: c03ef6385231506be030061646e95134a991d27a3ef4b34adaead7934524a436
font_01_sfnt_off0000867f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x867F 9796 bytes
SHA-256: 7021d53bab74499747e275fc5f27213c979441ceb1d1c9595eed93a93636dbaa
font_02_sfnt_off0000a814.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA814 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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