Malicious PDF — malware analysis report

Static analysis result for SHA-256 d169d5c7f8121b3c…

MALICIOUS

PDF

45.1 KB Created: 2020-08-02 13:26:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 043d94aed3f4e5060eb1815f894c54e4 SHA-1: e73aaf119ed42e414d3f358993e9802adc89325b SHA-256: d169d5c7f8121b3cd5b01fde4df54fb3f5ef5008d64f14873e9e3515073b3602
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body, though partially corrupted, contains the URL 'https://ttraff.cc/pify?keyword=why+renderitem+in+jquery', which is flagged as a malicious redirector. This suggests the document's primary purpose is to direct users to malicious infrastructure, likely for further exploitation or phishing. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=why+renderitem+in+jquery In PDF document text
    • http://files.lidefo.net/uploads/1/3/0/7/130739028/lelan.pdfIn PDF document text
    • http://files.risingachievers.org/uploads/1/3/2/7/132712005/kerupesusizegasenir.pdfIn PDF document text
    • http://files.tell-ignite.com/uploads/1/3/0/7/130739308/vizerag.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/1/0429/8961/7311/files/88076504812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/vumuzevaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5481/5640/files/30159395958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7016/8986/files/namevobavop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5295/5810/files/59638142233.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3665/5259/files/60559870154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3013/4427/files/jogolazimetej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6428/5601/files/58267121070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0700/0219/files/49717067860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7212/6117/files/46035771810.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 7

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_off00006b8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B8B 4960 bytes
SHA-256: dfe5427c0c858031d94e98e039e809f5c350985db43e25fadd6cbdb0a05a3347
font_01_sfnt_off00007c54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C54 13548 bytes
SHA-256: b860a5b33cfadf0c509c01dd0ec33f188a7e21842d5b5e785a9c2ade7db02918

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