Malicious PDF — malware analysis report

Static analysis result for SHA-256 725007c73cdd4195…

MALICIOUS

PDF

47.3 KB Created: 2020-07-29 19:08:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c007ae3a626229ea4eccf09f0be163d1 SHA-1: ee82b9e7697a0ea93c8bbe50a6ad650b564f6809 SHA-256: 725007c73cdd4195480747b6206b2bf59f40ae867f684c12ab108455ec59bc41
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file contains embedded links that redirect to malicious infrastructure, disguised as a lure for 'free printable certificates of completion'. The ML classifier strongly indicates maliciousness. The primary attack vector appears to be social engineering via a deceptive document, leading to a malicious redirector.

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.com/pify?keyword=free+printable+certificates+of+completion+pdf In PDF document text
    • http://files.garhorizons.com/uploads/1/3/1/4/131406885/makikonigofaruvarito.pdfIn PDF document text
    • http://files.audia2dp.com/uploads/1/3/1/4/131408142/6904652.pdfIn PDF document text
    • http://files.oxforddemocracycafe.org/uploads/1/3/1/8/131871787/lijame-faporaluzaxir-rijazariwetale-nadurawarut.pdfIn PDF document text
    • http://files.danieleheon.com/uploads/1/3/1/6/131637190/kariwize_jefigi_xonevo_gijipoze.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/1/0431/7950/7880/files/dikitanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4387/2153/files/zoxud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4536/2591/files/43337227709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0989/9670/files/3197628281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7810/7811/files/fomovagowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0909/7376/files/9799792148.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4331/5102/files/48287678005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5264/6050/files/mefodalowaxitoninot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mulobovapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1401/9496/files/57268426254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6200/9755/files/54691977792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9602/1919/files/79263091465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7898/4614/files/4766051859.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
🗂 Part of campaign: danieleheon.com 6 samples

Related samples 3

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_off00007ac7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AC7 5184 bytes
SHA-256: 52069305793102ff19f79db903f7d24d26ae98a88ac5ab9d873240f0c3aff428
font_01_sfnt_off00008c3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C3C 10280 bytes
SHA-256: 321f6e93bd7dbc5dacd58c52f0c9e80cbac4dc0c496925f7fe511cc820696d36

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