Malicious PDF — malware analysis report

Static analysis result for SHA-256 97d8384c00bd1b24…

MALICIOUS

PDF

45.8 KB Created: 2020-10-11 02:42:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: b90f438eec9554776271058cafed5e17 SHA-1: 6b38b8db5e71e9883eb815939e24cdd339c2fb4d SHA-256: 97d8384c00bd1b24a525dab96f84a9553c99b14c31db30193477dbf6785d067d
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=bmw+x3+service+manual In PDF document text
    • http://gifemod.andrewmichaelart.com/uploads/1/3/2/7/132740250/dewuma.pdfIn PDF document text
    • http://files.idshsaus.com/uploads/1/3/1/1/131163962/likeraguxe-dokodedilunuwu-pejepagow-tefinizigomuxud.pdfIn PDF document text
    • http://simid.mygentlebeginnings.com/uploads/1/3/1/4/131453109/9169086.pdfIn PDF document text
    • http://zevigo.briannashimerceramics.com/uploads/1/3/1/3/131380316/1138da3.pdfIn PDF document text
    • http://jelem.murphyband.com/uploads/1/3/0/7/130775350/2358344.pdfIn PDF document text
    • http://mirojuw.kuaddictsexpress.com/uploads/1/3/1/0/131070198/3fd1c5fa7.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/1/0438/3594/9218/files/lijizikisatulovorojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7931/1253/files/dyson_dc50_animal_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2490/0515/files/dirty_hand_tools_replacement_parts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/1132/8160/files/xokavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0613/1876/files/fruitland_middle_school_parent_portal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3481/1290/files/22426338619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/0650/8186/files/wugovozudir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4178/2950/files/threat_of_substitutes_automotive_industry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9249/8850/files/manual_of_mineral_science_23rd_edition_free_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

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70D6 5380 bytes
SHA-256: 4d550e47bea0ddac8b2f8a6ccbe9839de30367f7f02cde8d1972be9be12d5e5b
font_01_sfnt_off00008315.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8315 11588 bytes
SHA-256: 78397eadb148b225794e9a7781fd7514b29ba03096f90785c362d4a1c80253b0

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