Malicious PDF — malware analysis report

Static analysis result for SHA-256 d28580721c523098…

MALICIOUS

PDF

44.3 KB Created: 2020-07-30 18:42:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f7d53b3999360a01c4b46d675186aaa1 SHA-1: 845a2368f246b67d754b9bb4a1c5bf9d10d78bde SHA-256: d28580721c5230987e30c9562913c9e463ac16dd7ec59d9a843ce44399134236
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure at 'ttraff.com'. Another critical heuristic identified a PDF link farm hosted on 'cdn.shopify.com'. The ML classifier strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains keywords related to 'Java project source code' and 'pdf', suggesting a lure to disguise the malicious links.

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=java+project+source+code+pdf In PDF document text
    • http://files.skmagicpromotion.com/uploads/1/3/1/3/131384340/jagiboxatovovux.pdfIn PDF document text
    • http://files.luxuwrist.com/uploads/1/3/0/8/130814475/dozin.pdfIn PDF document text
    • http://files.cloverbands.com/uploads/1/3/1/4/131483002/6556013.pdfIn PDF document text
    • http://files.morrinsvillecommunityhouse.org/uploads/1/3/1/4/131453543/fefifuroxusi.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/1/0431/1416/8480/files/nudimaxozokutusidowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3958/0575/files/18162163761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1184/1958/files/repapetewonewaviniwav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5114/6649/files/57827240807.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3128/1312/files/lotuzurewodeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8494/8380/files/givusadadasot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2214/0070/files/bobujelob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58829080427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5821/7631/files/16645518900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7909/0855/files/84408473420.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_off000068bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68BC 4972 bytes
SHA-256: 2eeb592e46a4f6b6b81dded020fa127a995291a4fb12727166ab085886345420
font_01_sfnt_off000079c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79C5 13528 bytes
SHA-256: a2df42ed23c95932ca181661b4ab3a2555c7a1051363f33a5a607564abef42f0

Open this report in the interactive analyzer, or submit your own file for analysis.