Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a6d5c5120a62a0b…

MALICIOUS

PDF

34.9 KB Created: 2020-08-20 11:53:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cf21e84ed704fdcc8d88bac953c147ec SHA-1: de647a50ca966b05ea4a9889589f114f36348fa4 SHA-256: 5a6d5c5120a62a0b757675ad1d25f799ae15f3cade42f868b152fc2feb4ea36d
162 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, many of which point to PDF files hosted on Shopify. One of these links, https://ttraff.cc/pify?keyword=bodo+video++mp4+2017, is identified as a known malicious redirector. The presence of a link farm and a malicious redirector suggests an attempt to lure users to malicious content, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure and embedded links are indicative of a malicious document.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=bodo+video++mp4+2017 In PDF document text
    • http://files.emathacademy.com/uploads/1/3/0/9/130970003/wisefalikov.pdfIn PDF document text
    • http://files.yesforoakcreekschools.com/uploads/1/3/0/7/130740530/95fbc27.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8825/5912/files/the_seekers_daniel_boorstin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9565/8389/files/credit_risk_modelling_springer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3494/3388/files/jikeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4244/6231/files/54322576791.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84574839703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zonixalekena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9050/8960/files/93545564664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1935/3757/files/fapulasojibalisumow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/1475/5228/files/etiologia_da_doena_periodontal.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4046 5192 bytes
SHA-256: 144325463af7bf34534d0e54842e7ba4b62c2dc53870796fc69543716eddc6f1
font_01_sfnt_off0000520e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x520E 9336 bytes
SHA-256: 6e94c7cf6f1312fac04e76ca61ddbff6674f2d4899e4498619907aa33f532a18
font_02_sfnt_off00007228.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7228 3300 bytes
SHA-256: 345dad2fe3bcf6e0032ba761a7dceb9ccefcb7617719e82e85b9c406e7fd7b96

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