Malicious PDF — malware analysis report

Static analysis result for SHA-256 1910a874b7d77e9b…

MALICIOUS

PDF

49.3 KB Created: 2020-10-23 10:35:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-22
MD5: 0a7c8a1fad56d028ea7d53fa75adeb8b SHA-1: 624b595eeb4399092b085f2cd296cc235d9ee0dc SHA-256: 1910a874b7d77e9b72d4046a17f74e5c6b6dbdf60a38ecf81d176140afa95f47
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://gettraff.ru/123?keyword=kitchenaid+ice+maker+kuic18nnxs+manual In PDF document text
    • https://femitinekabel.weebly.com/uploads/1/3/1/4/131437683/pefifidekimabuv.pdfIn PDF document text
    • https://netaluzubik.weebly.com/uploads/1/3/0/8/130813777/rupifetigut.pdfIn PDF document text
    • https://vilukenuxe.weebly.com/uploads/1/3/2/8/132814007/f271163d37fbca5.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/bosajewowoj_rubuvakun.pdfIn PDF document text
    • https://gukaguse.weebly.com/uploads/1/3/1/3/131398473/5632305.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371248/normal_5f8ee935ddfe1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365607/normal_5f872f789da31.pdfIn PDF document text
    • https://robivitoj.weebly.com/uploads/1/3/4/3/134334713/pawimunijiz-kejulaka-vupakam.pdfIn PDF document text
    • https://pavowojavujide.weebly.com/uploads/1/3/1/3/131398322/giliribasojemarimib.pdfIn PDF document text
    • https://tidemipevu.weebly.com/uploads/1/3/0/7/130740592/4962211.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/1/0497/1895/2097/files/21527314896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0467/7763/0873/files/26983418234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7222/5442/files/80134277347.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/28920335552.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/gapasibogik.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/brche_erweitern_aufgaben.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/african_proverbs_download.pdfIn PDF document text
    • https://s3.amazonaws.com/satedafadusizo/arusha_declaration.pdfIn PDF document text
    • https://s3.amazonaws.com/rodigapigeta/bmw_x6_specifications.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/99980710751.pdfIn PDF document text
    • https://s3.amazonaws.com/daselex/boiling_point_of_different_liquids.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/binivugabeb.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_off00007e9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E9F 5528 bytes
SHA-256: 3547acc73362e35d595e53d31c5e44cfb7be8e877c276f028a85fb6f71554a8a
font_01_sfnt_off00009131.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9131 11292 bytes
SHA-256: d013f51ad988b566c8b3a9e8b1b91a251c4cb594d2d5513d033e1ab78b0f2a4a