Malicious PDF — malware analysis report

Static analysis result for SHA-256 c89d2fbe3768c947…

MALICIOUS

PDF

39.4 KB Created: 2020-08-02 10:55:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eb24322fd3bd0e6fb0d73f68a14b8e4c SHA-1: e428722cd2234cfc17a9841e8242c38dad21804f SHA-256: c89d2fbe3768c94784ac04081071b7bb04a98934151ecaf5963f7244caa1466d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm of numerous external PDF files, a technique often used for SEO poisoning or to host phishing content. One of the primary links directs to a known malicious redirector, 'ttraff.cc', which is configured with a keyword related to car manuals. This suggests a lure to trick users into downloading potentially malicious documents or visiting further compromised sites.

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=acura+tl+manual In PDF document text
    • http://files.remembrancestars.com/uploads/1/3/1/3/131384589/5470188.pdfIn PDF document text
    • http://files.withgracephotography.com/uploads/1/3/1/6/131636845/4752037.pdfIn PDF document text
    • http://files.gooddogautismcompanions.org/uploads/1/3/1/3/131380063/tubujugerode.pdfIn PDF document text
    • http://files.biggsbassethounds.com/uploads/1/3/1/8/131857071/84fb7a2093dbc.pdfIn PDF document text
    • http://files.phelpsmastergardeners.org/uploads/1/3/2/7/132740900/woloterivelalovu.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/1/0438/1730/4226/files/makowukul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4710/5191/files/convertxtodvd_5_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90296180399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/matagewagejugovetexesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2328/6940/files/58791822986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3171/5225/files/71279949757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/83709320750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5941/1094/files/87198486758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4347/1008/files/nadofomifarelari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0499/1387/files/simple_vs_compound_interest.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0609/1673/files/greater_mercy_pathfinder.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_off00005f56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F56 4756 bytes
SHA-256: f31b3c70407a65dedac342887d58a09ee15e7542b865193cf9da8c11b6186e1c
font_01_sfnt_off00006f66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F66 9860 bytes
SHA-256: 3ae32cad9ccfe86088d3f890efda1a67f46299e9aca5fa4386ddf97f71a874cc

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