Malicious PDF — malware analysis report

Static analysis result for SHA-256 88dff2e5b3d3f2c7…

MALICIOUS

PDF

77.0 KB Created: 2020-08-21 21:58:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fd055a2147d3f01ab871ff5f568836f5 SHA-1: c99450d696e830fcb0b2420637c635cdb511f9f0 SHA-256: 88dff2e5b3d3f2c777945f83130af5adea4ce5af81e07efd76a4d67a22021ff7
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to drive traffic to malicious sites. The embedded URL 'https://ttraff.cc/pify?keyword=antaranga+bengali+song' is identified as a malicious redirector. Although no scripts were explicitly extracted, the PDF structure and heuristics strongly suggest it's designed to exploit users through deceptive links, likely for phishing or malware distribution.

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=antaranga+bengali+song In PDF document text
    • http://files.iguanamercenary.com/uploads/1/3/1/0/131070452/500861.pdfIn PDF document text
    • http://files.furiousdaysk9.com/uploads/1/3/1/0/131070713/bae9a18ea0e0.pdfIn PDF document text
    • http://files.coefyouth.com/uploads/1/3/1/4/131438330/gixopi-zafuremalenojuz-xeguwujos-fesegojaxive.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/1/0432/6758/8252/files/72309046853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4192/2977/files/problems_of_african_historiography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7102/7865/files/pushing_to_heroku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nojigepinipefonumupitos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1167/7083/files/lonenabijomaburojeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7539/3944/files/actividad_fsica_salud_y_calidad_de_vida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/5636/0600/files/nonlinear_composite_beam_theory_hodges.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6161/5519/files/batooni_mod_apk.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_off0000e4b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4B0 4984 bytes
SHA-256: e8dae0fd57f977ecbc56093314937344bddc55e640a9458648ac10f3fbc26f29
font_01_sfnt_off0000f5ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5AB 15264 bytes
SHA-256: a5206a7a6f5002603b20db9a7ac357b4814f6a3cad0796906e5d690989ad6414

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