Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b2dbb9a0bf0629d…

MALICIOUS

PDF

44.4 KB Created: 2020-07-30 09:02:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 231cb0774a1c436fe66faef60f030d25 SHA-1: 53dd879da01bcb2864a2927f9c3593dc41d2712c SHA-256: 6b2dbb9a0bf0629d228a369b37fbc813b09c9ba410f225dbee485c0d66926b31
194 Risk Score

Malware Insights

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

The PDF contains multiple links to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, appears to be a lure for a PDF download, likely a phishing or scam attempt. The presence of embedded URLs and the ML classifier strongly indicate 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/pify?keyword=histologi+arteri+dan+vena+pdf In PDF document text
    • http://files.roundmountaincreamery.com/uploads/1/3/0/8/130874613/9f2e97cf8e07.pdfIn PDF document text
    • http://files.nurseguy.com/uploads/1/3/2/7/132710763/cd18b8e.pdfIn PDF document text
    • http://files.nanolab.info/uploads/1/3/1/3/131379749/befuraxigufero.pdfIn PDF document text
    • http://files.gracejiang.info/uploads/1/3/1/8/131856627/4945528.pdfIn PDF document text
    • http://files.hotcac.org/uploads/1/3/1/8/131857631/votuwi-jafebapo-belojaloxuduge.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/1/0435/4146/3189/files/basenepawibarazaxifop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8397/1237/files/56819007907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2191/0694/files/fafawusisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/demotufilonameviv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1892/7778/files/tepebijivab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8359/4917/files/3438362723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9461/3924/files/78818674005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/wufopeguxesox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6366/5055/files/fisasijofevejozoxorafeke.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_off00007108.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7108 5016 bytes
SHA-256: c9b91272a2805d947a1d6c612d8bde53ba343e8cc6a2781d45284ffd04982e9d
font_01_sfnt_off0000821f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x821F 9996 bytes
SHA-256: e50af2f39b411bf957295b7d977cc567ad9c988ec168aa4918eb1647394474bf

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