Malicious PDF — malware analysis report

Static analysis result for SHA-256 feabb8e2615dfa46…

MALICIOUS

PDF

45.8 KB Created: 2020-08-11 13:46:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 599aa64c1cf5d1d2ba6e142d9434d96c SHA-1: fb96d9e504d04758cf6fa2b18869f74515d0f0fa SHA-256: feabb8e2615dfa46f0ed3cc9b09dc523877905232afee63b38f297260d245d64
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. Additionally, PDF_SEO_LINK_FARM indicates a large number of external PDF links, likely for SEO manipulation or to host further malicious content. The primary malicious URL identified is https://ttraff.com/wb?keyword=exogenic%20process%20worksheet. The document body contains obfuscated text and embedded URLs, reinforcing the malicious intent.

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/wb?keyword=exogenic%20process%20worksheet In PDF document text
    • http://files.babeliciousandthebeard.com/uploads/1/3/0/8/130814085/4557887.pdfIn PDF document text
    • http://files.sylviagborda.com/uploads/1/3/0/7/130775503/xejus-dovasufa-legab.pdfIn PDF document text
    • http://jafig.quranandhadith.co.uk/uploads/1/3/2/7/132740978/6e8c56.pdfIn PDF document text
    • http://files.modernvintage20.com/uploads/1/3/1/3/131384771/gapivirup.pdfIn PDF document text
    • http://files.kafyeblaan.com/uploads/1/3/1/8/131856381/becb5.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/1/0440/7748/2136/files/carica_papaya_leaf_extract.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0178/1156/files/61855142582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1904/1954/files/java_string_interview_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9619/5737/files/30251082680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9910/9016/files/gre_coordinate_geometry_practice_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8165/4679/files/blanche_neige_rsum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8742/9785/files/riesgos_psicosociales.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0342/9535/files/pavofidup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zonamanasalusowalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8679/0304/files/80218923147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/carpetbaggers_and_scalawags.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_off00007486.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7486 5132 bytes
SHA-256: e5f1b0505993731e9fb377893309cc6bb1e7d4da9c24e9f4b384b24f0e54dc47
font_01_sfnt_off0000861e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x861E 10692 bytes
SHA-256: c66980b0b48eb737e243f6d8262de5cc060812d5bb589176afd741adf7f31bc0

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