Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b630eeb38d87c99…

MALICIOUS

PDF

40.9 KB Created: 2020-08-04 00:28:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2fcc9fbe93111972b8a194b12e01cb07 SHA-1: c0fa39daf7a389c64b35f8e532991d293004d27c SHA-256: 8b630eeb38d87c99927ec177fb421ee2bd01dab7b82a63bcbba972a842fd8b8f
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=how+to+write+a+book+about+your+life+pdf'. The document body, though heavily obfuscated, appears to contain references to the same topic as the malicious URL, suggesting a lure. The ML classifier strongly indicated maliciousness, and the presence of a link farm further supports a malicious intent to redirect users to potentially harmful content.

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=how+to+write+a+book+about+your+life+pdf In PDF document text
    • http://files.circleofloveceremonies.com/uploads/1/3/0/8/130813899/fdccdfc40.pdfIn PDF document text
    • http://files.thesilkfamilyproject.com/uploads/1/3/1/4/131437740/livig.pdfIn PDF document text
    • http://files.lefkasluxuryvillas.com/uploads/1/3/1/6/131637016/tininezo.pdfIn PDF document text
    • http://files.stpaulsbaytown.org/uploads/1/3/1/4/131407164/vasat.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/1/0434/6249/2310/files/45258867382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3432/8735/files/epme_e4_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5077/8269/files/91164934919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0862/9663/files/20720073088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0733/6863/files/kajanebokogawakemire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3594/1274/files/1532953820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1229/8648/files/xinidudidasexumusamagewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8537/3333/files/nujofavofivatimuwol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3902/2494/files/amlogic_usb_burning_tool.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7646/0447/files/jajiwoxetizom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6209/9109/files/7815612467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63537272249.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_off00006244.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6244 5216 bytes
SHA-256: 34c66b2008b1ce8727596a04c0dfa4fc0c924279be44a84f93a18542dd764378
font_01_sfnt_off00007421.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7421 10072 bytes
SHA-256: 56ebf2794d845cf9d97831fe381f2f68b0a283419fa13ea7f8ab95f3e3ebd024

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