Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8277e88b64f5bb5…

MALICIOUS

PDF

46.0 KB Created: 2020-07-28 00:51:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e20123999ca04690408e5ad21549733d SHA-1: 8968be039a4c036b7c66019f4e1faf983bc5c056 SHA-256: b8277e88b64f5bb59d53a227633bfe7c1cfda700a67df276b736f3df0a55a940
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with one pointing to a known malicious redirector (ttraff.com). The ML classifier strongly flagged this PDF as malicious. The document body appears to be obfuscated or corrupted, but the presence of the redirector link suggests a phishing or scam attempt to lure users to malicious content.

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=b.+ed+form+in+mp In PDF document text
    • http://files.daniellebschwartz.com/uploads/1/3/0/7/130738566/9441a036329.pdfIn PDF document text
    • http://files.kellicorneliaphotography.com/uploads/1/3/0/8/130873798/fenubem-bujufe-voxiwu-rifow.pdfIn PDF document text
    • http://files.comanchemethodist.com/uploads/1/3/0/7/130776594/8867026.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/1/0434/6796/4580/files/wuluxefevudizinobekal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0131/4454/files/bagozapizojuxotupuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1713/4502/files/47709631490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/79711356444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3482/9223/files/derepujemepagad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0985/1048/files/27402804845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2525/3023/files/kizukututarivizabegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1868/9434/files/23890017926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9280/3744/files/maxazebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0002/0635/files/57324879731.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1551/1968/files/somexogofogapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kenetawibonilolususede.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 8

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_off00007873.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7873 4556 bytes
SHA-256: 779cc7bec69e0c6630b623121f3979139c4f4e1ae923158442d34bbbaab01242
font_01_sfnt_off000087c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87C8 10448 bytes
SHA-256: 5b02e7b38c827e03c7b76d576f552316fe0af672e1faf1481636b15bca5be0e4

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