Malicious PDF — malware analysis report

Static analysis result for SHA-256 5baf091d9d727f17…

MALICIOUS

PDF

35.6 KB Created: 2020-08-06 08:46:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c5fa10459e9b2d595bbb2bd19d60cbaa SHA-1: 3d47dc2882f4138991e1bc9bc4fb6f1b835fad28 SHA-256: 5baf091d9d727f17c45065b2b8ac9abf0580532f58093270c819fa27319bf02e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded links, many of which point to a redirector service (ttraff.com) known for malicious activity. The document body, though obfuscated, also contains this redirector URL, suggesting the primary purpose is to direct users to malicious infrastructure. The ML classifier strongly supports the malicious verdict.

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=kerosene+poisoning+pdf In PDF document text
    • http://files.mycph.info/uploads/1/3/0/9/130969446/82513.pdfIn PDF document text
    • http://rexum.frufruandfeathers.com/uploads/1/3/0/7/130738848/rugoxe.pdfIn PDF document text
    • http://files.body-balancing.com/uploads/1/3/1/3/131380870/xejoxigotetubedet.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/1/0433/9505/5777/files/58958644705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/27939069130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2518/7491/files/38128262725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9107/4976/files/90273680151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8404/4705/files/fusionner_2_gratuit_en_ligne.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8254/7361/files/xadevukedulafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3078/8758/files/63209960021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3051/1779/files/6103151748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2243/3953/files/waxemavutax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0617/1048/files/40172459293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4361/8965/files/pojubalosarojawu.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 3

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_off00004f5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F5A 4936 bytes
SHA-256: 678a01610640c31f6d6d395ae0d15f5568671bf9ccef15b78ac6a5364dd1c330
font_01_sfnt_off00006043.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6043 9904 bytes
SHA-256: addc78800d46aea725e0d99f281701e2367649c3fb11482e448f222aeb091411

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