Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb363f6b8ca0ef1a…

MALICIOUS

PDF

74.0 KB Created: 2020-08-15 04:43:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d9ceeb445ba3368b90e7d8a8684ea118 SHA-1: 69dceac9586660425feae315a5575d9a660d80fe SHA-256: bb363f6b8ca0ef1a8cb56fff02a5064b19d8fb1099b9c7d3aad01d6f242a7fda
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to a critical heuristic identifying it as a redirector link to known malicious infrastructure. It also contains a link farm pointing to numerous external PDFs, many hosted on Shopify. The primary malicious URL identified is https://ttraff.cc/pify?keyword=gauge+transformation+equation. The document body is heavily obfuscated and contains no readable content to further inform the attack pattern. No scripts were extracted from this sample.

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=gauge+transformation+equation In PDF document text
    • http://bupikoke.staidans.ie/uploads/1/3/1/3/131381167/xetaxomixitis_loregid.pdfIn PDF document text
    • http://taguma.rachelbrodie.net/uploads/1/3/1/6/131637136/xikonodizi.pdfIn PDF document text
    • http://files.smhumzaali.greatwebsitebuilder.com/uploads/1/3/1/6/131606262/7175b3f49b.pdfIn PDF document text
    • http://baxizeke.stevenstackplaywright.com/uploads/1/3/1/4/131482976/d235b035a1cb.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/1/0433/4839/4143/files/xapinozipelade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16481260084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4305/2953/files/biblia_dios_habla_hoy_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9381/1619/files/18695231981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5199/7592/files/boretuminabizunaxuni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5667/7543/files/iterm_split_pane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7316/5725/files/wesavojad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6590/8136/files/gusul.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 1

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_off0000d91a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD91A 5212 bytes
SHA-256: 30c10fa240af386083cb05f0cce5d9b06a2fa3ce60942763f7243f9a79deec5d
font_01_sfnt_off0000eac9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAC9 15624 bytes
SHA-256: c84b5277f81da4a0a5241fae1af30c4dd2bb3f5985ffe1ea6e005acce6bc04c5

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