Malicious PDF — malware analysis report

Static analysis result for SHA-256 76b705855403345d…

MALICIOUS

PDF

41.1 KB Created: 2020-08-03 03:27:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01b7595f299eeeed5bb01b097a9876be SHA-1: 5000367199542de7ed07957737c7127bde628a73 SHA-256: 76b705855403345d0495f3decc6d560e05a3c57dc85dee32d01c66b3a2b62f15
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) flagged as malicious. The document body, though heavily obfuscated, contains text related to 'Knight's sword osrs' and the malicious URL, suggesting a lure to trick users into clicking. The presence of multiple PDF links and a malicious redirector indicates an attempt to distribute further malicious content or conduct phishing.

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.cc/pify?keyword=knight%2527+s+sword+osrs In PDF document text
    • http://files.cappsmd.com/uploads/1/3/1/4/131438557/d9998ac1.pdfIn PDF document text
    • http://files.visuograf.com/uploads/1/3/2/7/132710697/pafidusoras.pdfIn PDF document text
    • http://files.mindfulvisionaries.com/uploads/1/3/1/1/131163834/tujopufuzi.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/1/0437/1175/8491/files/46661811903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/lulofedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0163/4201/files/vebewudur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1097/3083/files/rebedigazupawegewol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0926/9156/files/vizew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/lugid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6645/6224/files/40373452662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5174/5442/files/munataxevuforedoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5252/3929/files/84294822911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1967/2472/files/wivevipilofogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6728/5410/files/wedugilurewovokapopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6756/2391/files/41710121375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2313/0009/files/aether_mod_1._7._10.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_off00006403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6403 4940 bytes
SHA-256: d1481ac0d22e9a989900e3be66ef44b08e8a884eaa04dd0bd75e7d153500d9c0
font_01_sfnt_off000074ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74EC 10252 bytes
SHA-256: 6106cdc468273b76dcf620d1e98cee2874a0f73730a887151de4303aad83a6a3

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