Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b535958da4e2a29…

MALICIOUS

PDF

38.0 KB Created: 2020-08-05 15:48:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4924ce26311661869c73d47e9b5a578d SHA-1: febceaa47192d2301afd0462038161de47c3814c SHA-256: 6b535958da4e2a2913a07f912c0f6ff75fc2f5ca3dab5e10a3d3bbcbf50432c0
214 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to redirector infrastructure like 'ttraff.cc'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=acls+card+pdf', suggesting a lure for phishing or malware distribution. The presence of a QR code lure further supports a phishing or social engineering attack vector.

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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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=acls+card+pdf In PDF document text
    • http://files.bardstowncf.org/uploads/1/3/1/4/131453177/renepu.pdfIn PDF document text
    • http://files.nigel.higson.ca/uploads/1/3/0/7/130739343/tikekujobujapegujezu.pdfIn PDF document text
    • http://files.fourpointsinc.org/uploads/1/3/2/3/132303320/kobenafo.pdfIn PDF document text
    • http://files.paqu.org/uploads/1/3/1/8/131871894/vibofukupu_ruzererijolibij.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/1/0429/8165/4687/files/51920803324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4122/5880/files/amsterdam_tourist_map_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2235/8427/files/36427900441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5743/1196/files/42465994748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1653/5720/files/44528057331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8812/4830/files/dubivazifoxejudedu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38746106010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4952/5156/files/vewimupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6725/files/wigunijabon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/99100024636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2449/8333/files/92797483215.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_off0000558d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x558D 5140 bytes
SHA-256: adc8e8451a556772cdf35e93f4f3b3aaff13f83904cb2672e6cbc28d9d36da62
font_01_sfnt_off0000671a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x671A 10672 bytes
SHA-256: 7d8d549c84e832245e7080286c7ac15970f32371ac2ac59e8fb1bcb1e6aacf6c

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