Malicious PDF — malware analysis report

Static analysis result for SHA-256 683ff89d983ba3e2…

MALICIOUS

PDF

37.4 KB Created: 2020-08-23 01:14:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 08ea33be63d0a25a7b4725fdf4b4ab3d SHA-1: 5efbd95ca9ebc8910822e068e4c6ecbb02f7ed22 SHA-256: 683ff89d983ba3e2100cad6c0dd1fc5e7defeb9fb4f6719964922dc5eb6774e8
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or scam campaign. The document body, though heavily obfuscated, contains a URL that aligns with the identified malicious redirector. The presence of embedded links and the overall structure point towards an attempt to trick users into visiting malicious sites.

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=format+factory+samsung+j7+prime In PDF document text
    • http://winas.recraftandrelic.com/uploads/1/3/0/7/130776255/vilumuzoke_topifejefuguve.pdfIn PDF document text
    • http://files.gillierdrainage.com/uploads/1/3/1/4/131437725/d06d3393fe.pdfIn PDF document text
    • http://files.hlmmo.com/uploads/1/3/0/8/130814596/zoxoz-kogopodupuf-nuxogumasak.pdfIn PDF document text
    • http://midudew.electhicks.com/uploads/1/3/0/7/130775734/8051504.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/1/0441/3535/0424/files/78940377032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8264/4642/files/gizuboveso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9262/2998/files/chocolate_cake_recipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8765/1235/files/bsc_syllabus_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8475/9711/files/78106358773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9147/7159/files/network_marketing_books_in_bengali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8198/2361/files/97052895765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5104/9370/files/chuyn_file_sang_excel_trc_tuyn.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1513/3605/files/sekoxusipitukovedibozage.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_off0000548e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x548E 5516 bytes
SHA-256: e66c4e160b413778f7f6f93e4d15852abca0df7e1dbdd85303e297d48b79ad36
font_01_sfnt_off00006755.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6755 9992 bytes
SHA-256: 0b55bb68b558f144e0271ddebcf37a2b988fe62debce38d821dd42d05c46760a

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