Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ad6631048972a0d…

MALICIOUS

PDF

51.8 KB Created: 2020-11-09 12:47:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: e652520c985c5a809857f083da566995 SHA-1: 1756dabdd24611401b2833ddbc250817134abeaa SHA-256: 5ad6631048972a0d262d569eba078bcdb6b203d4dba176aa586f151c5ecdd2ca
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://traffmen.ru/123?keyword=panasonic+model+kx+tg6641+manual In PDF document text
    • https://kezopepeza.weebly.com/uploads/1/3/4/3/134332650/vesol_dipufitabopu_vifabo_xujatesojixu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384144/normal_5f8fb62f152d6.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://s3.amazonaws.com/tedowafomaru/filter_cross_reference_chart_napa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dfccb256-4eab-4efe-85cd-cdb361a7c0d8/wezosobedazosoworujezo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bda47c45-3ae4-49cc-8e5c-03832d661573/pukerutadut.pdfIn PDF document text
    • https://s3.amazonaws.com/xajowu/basigopudumo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf00063e-28ec-47a7-8a15-a60819e783ea/49432726955.pdfIn PDF document text
    • https://s3.amazonaws.com/visagogijulep/fesavepebivonojuwususaxoz.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/chapman_car_alarm_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/9346872299.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39ec26f5-5ca2-48be-b113-e7ecbe9ca5a5/dabud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9efbae77-84f5-48d5-a473-e61dc282117b/certificate_of_completion_template_f.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81c21f1c-e818-4611-a3e6-da1cac3012de/psychology_themes_and_variations_10th_edition_download.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_off00007adc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ADC 5472 bytes
SHA-256: 90e58bf94008323768c5e2bcfff33a3ee7e22c43895201f0432e8519d2677d9b
font_01_sfnt_off00008d69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D69 12144 bytes
SHA-256: 4209e6289262a5611d6b6f6b003934a2f09c503767ff0209e2a39f181f159c33
font_02_sfnt_off0000b47d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB47D 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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