Malicious PDF — malware analysis report

Static analysis result for SHA-256 f45e8f25413aeec0…

MALICIOUS

PDF

52.5 KB Created: 2020-08-25 04:39:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3115cece4e53c460fb3f0c0a397341f7 SHA-1: 01e3b1741ca6b7d23b942f69dafc6d313f94e833 SHA-256: f45e8f25413aeec07393103644ff4722c99a619578d2a82f553b2b97b5a01eec
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=ecb+icaap+ilaap+guide', is designed to redirect users to malicious infrastructure. The PDF also exhibits characteristics of a link farm, suggesting an attempt to distribute multiple malicious links or pages. The ML classifier strongly indicates maliciousness.

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.cc/pify?keyword=ecb+icaap+ilaap+guide In PDF document text
    • http://saminefop.mikemarksarts.com/uploads/1/3/1/8/131871674/sujez.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/1/0447/8962/9079/files/differential_equations_from_calculus_to_dynamical_systems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0270/7615/files/ios_13_beta_installation_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3609/0273/files/wakotibazuxil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9073/8328/files/vefefunedodopulelupimuna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1540/3682/files/new_moon_graphic_novel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8206/3778/files/english_grammar_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1125/2132/files/susizelogofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30036161276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4229/2390/files/63485957869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1095/6196/files/ralamolopilibixer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3383/7224/files/24767844791.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_off000091c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91C3 5064 bytes
SHA-256: 503b1ccab5c884f3092458221af54a2d03cbdaf552695938ba0e1839782814de
font_01_sfnt_off0000a302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA302 10020 bytes
SHA-256: 653dbc624a505fdabaef3f4f93f96f3a288e82faab66c289bfe21db61f4acae4

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