Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab708a4996f4f758…

MALICIOUS

PDF

42.1 KB Created: 2020-08-27 17:07:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 581c170edcd75763b0c52035a9101388 SHA-1: 310f7df3bde6a3beea71c2d5084be58a1a9a7263 SHA-256: ab708a4996f4f7588dbd581fe5e328817dedb2fa339118cb884f0f5ad55db0ff
194 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a critical heuristic firing for a malicious redirector link. It also contains a large number of external links, forming a link farm, with the primary redirector pointing to 'https://ttraff.com/pify?keyword=triangle+d%2527or+positionnement'. This suggests the document's purpose is to lure users to malicious sites. No scripts were extracted from this sample.

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=triangle+d%2527or+positionnement In PDF document text
    • http://ruvimeki.rochonlab.ca/uploads/1/3/1/4/131453720/tejugetaramig_sikelisakumib.pdfIn PDF document text
    • http://xaludar.onesailorboutique.com/uploads/1/3/2/6/132683169/8266921.pdfIn PDF document text
    • http://nakulare.brandito.net/uploads/1/3/0/7/130776008/c0512094658.pdfIn PDF document text
    • http://files.caremoresa.com/uploads/1/3/1/4/131437953/4186111.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/1/0434/8402/0898/files/21740887705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6019/1651/files/behaviourist_approach_to_learning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6243/5739/files/73596800039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1141/5965/files/316748589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4907/4344/files/dimensionality_reduction_by_learning_an_invariant_mapping.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mulobovapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0785/1171/files/lewojebijeseruniv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2468/5975/files/33253921411.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A64 5048 bytes
SHA-256: 61352b1b265390e65c478f954187b4bc1bd63c9b68a67513918560a6cfc097d7
font_01_sfnt_off00006b71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B71 10064 bytes
SHA-256: 312dbb8a53be054ec08e3d8a50939c8d7d0ad1064229822227f93415a3aaaceb
font_02_sfnt_off00008d9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D9C 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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