Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e1e91dc6f762996…

MALICIOUS

PDF

48.3 KB Created: 2020-10-23 19:29:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-09
MD5: 85e10d89603fddfa3da18ae3eed0ea06 SHA-1: 647d40ca5a2f7c4b4d64cad06e809ee0153a4bcd SHA-256: 5e1e91dc6f762996f224d0d32427b46e612ad0430c1f12b6563b3c1cf3f9ad19
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.link/123?keyword=top+ten+addictive+games+for+android In PDF document text
    • https://s3.amazonaws.com/megelugik/grammar_english_rules.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/48920810897.pdfIn PDF document text
    • https://s3.amazonaws.com/mamibis/neuralgia_de_arnold.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/sixukejomiwewanage.pdfIn PDF document text
    • https://damijuvik.weebly.com/uploads/1/3/1/3/131381376/wujajimu_zoreler.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/1158663.pdfIn PDF document text
    • https://zigegawemofeza.weebly.com/uploads/1/3/1/4/131406932/karowesitodotud-romuvub-xesopi.pdfIn PDF document text
    • https://waniremupamed.weebly.com/uploads/1/3/1/4/131407535/noxununaten_fubevif.pdfIn PDF document text
    • https://gevafitasib.weebly.com/uploads/1/3/1/3/131380901/a7b88.pdfIn PDF document text
    • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/b0fb7f06f.pdfIn PDF document text
    • https://bilewazivabo.weebly.com/uploads/1/3/2/8/132816117/depuninibakeza-xuzekaloro.pdfIn PDF document text
    • https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/8a3a7d01008d78.pdfIn PDF document text
    • https://moleresudiba.weebly.com/uploads/1/3/4/4/134447347/xazudesuf.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/74459980664.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/bezonoraruw.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007dd0.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007dd0.bin)
    • https://cdn.shopify.com/s/files/1/0268/7769/0035/files/wallpaper_nature_hd_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/2337/4752/files/37018038959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/4624/7833/files/51724783789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9010/8833/files/broan_allure_qs1_range_hood_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/6424/8470/files/koxajakuvexewarasowiradar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/3876/1109/files/android_version_distribution_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/0877/0467/files/finger_lakes_camping_watkins_glen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3866/8965/files/68329549718.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_off00007dd0.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007dd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD0 5452 bytes
SHA-256: f56d6510a366baea3a56ad25b1ed1087f54e646b49ac1ca0950f3df79aac536b
font_01_sfnt_off0000905a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x905A 10412 bytes
SHA-256: f5541b0686ad26513e8ceb21ef2aed8fcb1010249cef5889e65b52a7cab60a49