Malicious PDF — malware analysis report

Static analysis result for SHA-256 05f150723b4ec0dc…

MALICIOUS

PDF

40.9 KB Created: 2020-08-09 08:09:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 54a7531cd3f0a48a29dd3eb95ca670d4 SHA-1: 45cde76c3b889885a665ea7dcb2617070c2006ef SHA-256: 05f150723b4ec0dc5e583c2f3177ec7935456d24ebd806a3a19af634b72b0975
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 and heuristics indicate a link farm strategy, likely intended to phish users or distribute further malware. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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=quistes+blastocystis+hominis+pdf In PDF document text
    • http://diwopov.minorcanmayhem.com/uploads/1/3/1/3/131381428/574c75310d0a5.pdfIn PDF document text
    • http://wufujef.barneyspumps.com/uploads/1/3/2/3/132303382/432d4e1821188.pdfIn PDF document text
    • http://mojeted.5thstreetfinancial.net/uploads/1/3/1/3/131380600/nazopaxujafazen_sazaro_labiluna.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/1/0428/1332/5471/files/majasilesopafinajakifimuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9898/7941/files/1535257479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6358/0574/files/9881912326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7791/9129/files/kajurinowesegopevow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6280/3097/files/muxaberizerik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9661/2768/files/bubokabizorugifunexavuze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4777/9478/files/potassium_bromide_msds_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4749/4567/files/levidalujidetiwutoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5771/6119/files/22972541428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6893/8647/files/bibazubotuxojifajipeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0649/2823/files/mefudekonezaturanute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2817/5255/files/nezut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1991/0820/files/82832855017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9222/0829/files/zifimewosuragesoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1219/3438/files/zijitepaluvufup.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_off00006222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6222 5600 bytes
SHA-256: 559b6db01fb33093729d7851d26030e282b078456ec054361de2055d1df5594e
font_01_sfnt_off0000750b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x750B 9884 bytes
SHA-256: 1d394b6651722f54776cb4d4ad79c9492fd7e6228f09c27d42c2c0ba771bd116

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