Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d3145f40c98e046…

MALICIOUS

PDF

50.7 KB Created: 2020-10-12 07:58:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-16
MD5: 3f197d7b2ef8893bfe343cb859294395 SHA-1: 4d5e5b00360b27ae13461fb14631cd81e5280914 SHA-256: 5d3145f40c98e046f89bd17c471508dac68b57716a80ec477132d94549a0103c
234 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://ggtraff.ru/strik?keyword=epson+xp+800+service+manual In PDF document text
    • http://files.needybeastshaven.org/uploads/1/3/1/6/131606183/sudefusumo_gilirusigeralud_bovumororatim.pdfIn PDF document text
    • http://vatil.islandhealthhut.com/uploads/1/3/1/4/131408172/8692620.pdfIn PDF document text
    • http://newadapel.aircombatbattlefield.com/uploads/1/3/2/6/132681865/723660.pdfIn PDF document text
    • http://files.ariellejochum.com/uploads/1/3/1/3/131384256/liwigekamigowan.pdfIn PDF document text
    • http://files.jnhospitalityentertainment.com.au/uploads/1/3/1/4/131407357/tofos.pdfIn PDF document text
    • http://bazuk.santecastignani.com/uploads/1/3/1/3/131398244/jurebenitav.pdfIn PDF document text
    • http://files.nebraskaeasement.org/uploads/1/3/0/7/130776511/4934130.pdfIn PDF document text
    • http://files.uwmcm.org/uploads/1/3/0/8/130874012/7eec1b4.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000872d.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000872d.bin)
    • https://cdn.shopify.com/s/files/1/0429/3486/1991/files/savododuwaduxek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9612/2561/files/96891929845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5390/8117/files/lejezamopit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8434/9591/files/zakudewurepalivuvamop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/4360/5658/files/vusabemumetuvuwokoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9574/7488/files/what_does_void_mean_in_arduino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8663/3374/files/f_has_____valence_electrons.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/9910/5696/files/the_last_werewolf_trilogy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0141/1744/files/livivezogivulusonuja.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 extracted file (font_00_sfnt_off0000872d.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000872d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x872D 5500 bytes
SHA-256: 93b06183b69c1e066573671f4b788733e00248450c1c2dd50c7c635e6dfff27b
font_01_sfnt_off000099ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99CA 10448 bytes
SHA-256: 03a261f68b17579f5ced66f85056521af1e32b7318ede38210a85f72ea55b504