Malicious PDF — malware analysis report

Static analysis result for SHA-256 6739e71893e03d77…

MALICIOUS

PDF

43.3 KB Created: 2020-08-24 00:32:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c6668ba9eb5af6dd2bf4ae1db0dbeb2b SHA-1: 02993b3c90167addd40b711c83ff03aa694cb226 SHA-256: 6739e71893e03d774f694303ef4a2de7b47633dd3d57e0b106be50800ade80e8
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.com) which is flagged as malicious. The document body, though heavily obfuscated, contains the same lure text and URLs found in the heuristics, suggesting an attempt to drive traffic to malicious infrastructure. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

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=in+lawfully+yours+parents+guide In PDF document text
    • http://files.angelsof97.com/uploads/1/3/1/3/131398374/ribezap.pdfIn PDF document text
    • http://mazoxi.drnatedmond.com/uploads/1/3/2/7/132712207/redokene-xumub-ritifubasomo-gofapo.pdfIn PDF document text
    • http://sobitipo.knockatallonns.com/uploads/1/3/1/3/131384260/1e36ea7b828.pdfIn PDF document text
    • http://files.isetnb.com/uploads/1/3/0/7/130739340/1338399.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/1/0432/7853/2758/files/38021594103.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/9283/9317/files/igcse_biology_revision_notes_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5573/5203/files/zijijixawosujoruwezeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2299/2028/files/dso150_digital_oscilloscope_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0077/2254/files/dizoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8229/3152/files/68648550761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9129/6413/files/66089099704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7709/9935/files/dogofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7054/6329/files/tsa_cbt_practice_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2616/7461/files/spoken_english_for_business_communication.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/bobupevag.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 4

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_off00005e5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E5B 5220 bytes
SHA-256: 216847ee3d0297f320b450fa17fc667fb95b65ee64993345548df73f88fbd0b0
font_01_sfnt_off00007044.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7044 9912 bytes
SHA-256: 8494323c02e39c6aff6a61640e5fad8e2ec7e627a44814031cfce8501c4d6ad1
font_02_sfnt_off00009222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9222 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

Open this report in the interactive analyzer, or submit your own file for analysis.