Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f669baa6643227d…

MALICIOUS

PDF

40.8 KB Created: 2020-08-21 12:51:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e5c1c152d47dd89cf494ef9c2f06cf2f SHA-1: 5a3452e16f9fceca33f19fb1273c00417bf6f56a SHA-256: 5f669baa6643227d2e61d8122748b03929c39584e4c55f05e598516788df50de
202 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a primary link to 'ttraff.com' which is flagged as a malicious redirector. The document body, though partially obfuscated, contains the same lure text and URLs found in the heuristics, suggesting an attempt to drive traffic to malicious infrastructure. The presence of numerous external PDF links also indicates a link farm or redirection strategy.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=messenger+video+call+for+android In PDF document text
    • http://files.facss.net/uploads/1/3/0/7/130776264/2275450.pdfIn PDF document text
    • http://wiwuvugat.lungbuster.org/uploads/1/3/2/6/132681072/6597294.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/1/0433/0812/2280/files/53489891550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3418/0769/files/41880087654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2754/5755/files/28027755673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0609/9605/files/rudinepavireseget.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7028/3173/files/overstreet_price_guide_2017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1878/6728/files/xuvugebupiwaxijofoxadanaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6309/1112/files/adobe_acrobat_pro_dc_freezes_when_opening.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0079/9140/files/vafekikerisodosudobiwex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8254/7351/files/retuxemuded.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81667611697.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 1

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_off00006166.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6166 5252 bytes
SHA-256: 3852238a06de797b452d40f271cf349127570d2979e3026052c2e96ba0c0b8ea
font_01_sfnt_off00007359.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7359 10292 bytes
SHA-256: 9875dbf7af035d94fdf4841253de014011eabf57093861bb59efe4a79998a130

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