Malicious PDF — malware analysis report

Static analysis result for SHA-256 758bca44ebf0740e…

MALICIOUS

PDF

39.9 KB Created: 2020-08-23 14:58:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 981447a87a9d92721856c3d45ad80871 SHA-1: c8eb650643ec372fbfabe8d2e80e54b216f6b4b7 SHA-256: 758bca44ebf0740ec8d968bc7022433b3f6f38108e4edfcf484c27e5df1e7509
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to a known malicious domain, identified as a redirector for SEO-based phishing. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'ioc full form in hotel management'. The presence of numerous external PDF links, many hosted on Shopify, suggests an attempt to create a link farm for SEO manipulation, likely to improve the ranking of the malicious redirector. No scripts were extracted, but the primary attack vector is the malicious URL.

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.ru/pify?keyword=ioc+full+form+in+hotel+management In PDF document text
    • http://files.sewaneerealty.com/uploads/1/3/0/7/130739699/wonixuzef-xozamiwo-wowuniboro.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/1/0429/9928/3861/files/32861628640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2443/9704/files/chimney_flue_installation_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0164/2135/files/resume_for_business_owner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tivaluzisezulumavolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/memorandum_and_articles_of_association_of_a_company.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4982/6969/files/acwa_power_barka_saog_annual_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4398/6327/files/castrol_magnatec_professional_oe_5w40.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4693/5445/files/lugifepenisuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0646/6976/files/factsheet_oder_fact_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5404/7125/files/gijovefo.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 2

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_off000052ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52CE 5056 bytes
SHA-256: 94500aa02f87cb79a2e7de0887b83cd68f69fee39f269d5e405468a21a9c0cbb
font_01_sfnt_off000063c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C5 14672 bytes
SHA-256: 875f0b945051a3f75c1b00c7e7e81629d8295e64a51026ed488c25b6b82c0aab

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