Malicious PDF — malware analysis report

Static analysis result for SHA-256 e533e41fbc09d405…

MALICIOUS

PDF

47.4 KB Created: 2020-08-17 07:13:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1bb2ee79104bb97481c6a9d73487829f SHA-1: ec292f13edad10c89fd678d8bee815d46a79472c SHA-256: e533e41fbc09d40560649b90cb3736c0dd87946942ebd649bf9c70b879513075
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy to improve SEO and distribute malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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=canon+pixma+software In PDF document text
    • http://semegova.msvelascoslaboratory.com/uploads/1/3/1/4/131437508/5016847.pdfIn PDF document text
    • http://files.donanddarrell.com/uploads/1/3/1/1/131164399/repufarafegozar_domamonasami.pdfIn PDF document text
    • http://files.allexreddink.com/uploads/1/3/0/7/130739366/veseke.pdfIn PDF document text
    • http://files.ufly4fun.com/uploads/1/3/0/8/130813768/5f683b3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3592/6434/files/kafuvuselaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9229/6359/files/dewotekusataf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0191/3244/files/82918986024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1921/4758/files/pirate_perfection_payday_2_trainer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2853/7753/files/jaxunifodavifipovaginowoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7083/3319/files/nakuwesowosekuwinoben.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8792/9252/files/ansys_apdl_training.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4828/8935/files/70770665488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4848/5535/files/remukulodojavivof.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 6

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_off00006e0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E0E 4988 bytes
SHA-256: d0d2084de7829b670738bff1e4f43ca315aa62c3829e4ae74969990743caff96
font_01_sfnt_off00007efc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EFC 10496 bytes
SHA-256: 5ab038bda1c473a2a8eb3995c9d6d128be324239cd6f76edf8449a51377fe3aa
font_02_sfnt_off0000a2e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2E1 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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