Malicious PDF — malware analysis report

Static analysis result for SHA-256 01845b7be0635e4d…

MALICIOUS

PDF

67.6 KB Created: 2021-01-22 06:46:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-08
MD5: 1b24615a437b6f134d7390bf18f67177 SHA-1: ce5db53c022eeb5a7db0b986ee1b71a4aba64571 SHA-256: 01845b7be0635e4d1ed5d6e6c1dc6a5937f63e624a0c1e8ab853befa98399331
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://zawasofolebu.weebly.com/uploads/1/3/4/9/134902788/2f06f55ddf9.pdf In PDF document text
    • https://lebivituwaw.weebly.com/uploads/1/3/1/8/131856954/wifotexibil.pdfIn PDF document text
    • https://s3.amazonaws.com/lixisariwulo/2333688346.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/messenger_apk_mirror_latest_version.pdfIn PDF document text
    • https://cdn.sqhk.co/nujidegowupi/PheKhiM/planet_of_the_apes_caesar_movies.pdfIn PDF document text
    • https://ruxevikupasej.weebly.com/uploads/1/3/4/6/134663562/5941696.pdfIn PDF document text
    • https://ziganuridu.weebly.com/uploads/1/3/0/8/130815115/munituj_refoxaxedib.pdfIn PDF document text
    • https://kasorewo.weebly.com/uploads/1/3/2/7/132740312/nawotaxotipof-relasutesewo-kamofukira.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423137/normal_5fecc1bd0cefe.pdfIn PDF document text
    • https://cdn.sqhk.co/vetukalujir/ghVOZgf/18653898790.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373259/normal_5fe3488aafb37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368975/normal_5fd7c2c2ef299.pdfIn PDF document text
    • https://s3.amazonaws.com/goneduzum/babies_quotes_images.pdfIn PDF document text
    • https://cdn.sqhk.co/devisojop/9Yjehdh/shadow_fight_2_titan_mod_no_root_download.pdfIn PDF document text
    • https://s3.amazonaws.com/mozirolinitaje/killington_snow_report_forecast.pdfIn PDF document text
    • https://trafficel.ru/123?utm_term=chevy+s10+repair+manual+online+freePDF link annotation
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000cd6c.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000cd6c.bin)
    • 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_off0000cd6c.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD6C 5400 bytes
SHA-256: 6023bdac6f0a465b6481c55cc688b78a50d9ff80f7ec904a797cb519db476dc0
font_01_sfnt_off0000dfaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFAF 10032 bytes
SHA-256: 51ee422d1d4eb819538674abf44a9e743d78385c8ee491e0062796bde57906f7