Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a06515269a03a53…

MALICIOUS

PDF

47.6 KB Created: 2020-07-30 14:26:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6daad262dce8b9b78b5ea824c558d4b3 SHA-1: 988d04aa08459c6efb2483f7c954159f167b6f1f SHA-256: 4a06515269a03a5357d6f37fa0748dea089905ad3e0b02f1ba9b82db0a3c94e1
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, suggests a lure related to 'The black book african american history pdf'. The primary attack vector appears to be directing users to malicious external sites via these links.

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=the+black+book+african+american+history+pdf In PDF document text
    • http://files.thehungrydreamer.com/uploads/1/3/1/8/131871864/bagejeramodufuxub.pdfIn PDF document text
    • http://files.larienca.net/uploads/1/3/1/4/131437725/sanazuri.pdfIn PDF document text
    • http://files.1divashop.com/uploads/1/3/0/8/130814172/4832978.pdfIn PDF document text
    • http://files.kyammo.com/uploads/1/3/2/6/132680808/mogefadomij-xisiferiwidaxo-kivojadene.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/1/0439/0410/6651/files/74091342667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2222/8379/files/25932452785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/581871399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8229/3141/files/21234618255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94766401197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9315/5235/files/vemanaxabotumovedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8947/5237/files/rotugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9306/5877/files/632677328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3342/0195/files/vefana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/31371375015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0690/2950/files/pugobiposikodilo.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_off00007bb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB5 5436 bytes
SHA-256: 71c1e63602ab904952d96a35d9560eacb3a07d758460fbdce60f0f1941e8a80a
font_01_sfnt_off00008dfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DFC 10256 bytes
SHA-256: 7ae6953814afd45fb4cb025b3dd58908ab366ba32366a4074f7f67d83b6ce657

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