Malicious PDF — malware analysis report

Static analysis result for SHA-256 240194281bd1c0bb…

MALICIOUS

PDF

74.3 KB Created: 2020-08-18 23:12:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 532a69f7cd6a50a7862543eaa40608d0 SHA-1: d64f12495a796660b981fea561c4212879d81e14 SHA-256: 240194281bd1c0bbeddea968d9d9d05207dc749d4a5dda283e373340ae8ac893
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=informant+and+respondent'. The document body, though heavily obfuscated, contains this same URL, suggesting the primary intent is to redirect the user to this malicious site. The presence of a PDF link farm heuristic further supports the malicious intent of distributing links, likely to further a phishing or malware campaign.

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=informant+and+respondent In PDF document text
    • http://webulux.cosmogonyart.com/uploads/1/3/1/3/131378814/4031700.pdfIn PDF document text
    • http://kigivuv.carissakarner.com/uploads/1/3/0/9/130969173/senivugumedope.pdfIn PDF document text
    • http://files.first-glbr.org/uploads/1/3/1/3/131381804/rofupulako.pdfIn PDF document text
    • http://gotod.hausonthehill.pub/uploads/1/3/1/3/131383646/podixulitid_letetakuvum_sorexuva_donajofedajumom.pdfIn PDF document text
    • http://files.chenyy0527.com/uploads/1/3/2/7/132712139/lilogabewojumob.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/1/0433/2870/0571/files/scope_and_value_of_business_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9256/6435/files/bubble_sort_in_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9232/8104/files/impact_of_globalization_essay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8261/0843/files/simple_sql_queries_with_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0145/4500/files/aranjuez_guitar_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9930/6648/files/ropajoso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1313/4757/files/17111905214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9793/9349/files/13732423595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4950/8250/files/gonawijitu.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 4

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_off0000df61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF61 5092 bytes
SHA-256: 720fe0a993c5ea181b5274a2740f9f8c991a20e7ec5e966786542a5f9830df92
font_01_sfnt_off0000f090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF090 13512 bytes
SHA-256: 4232f45f38c65d3b4afefb3004eae9535d51a10bcc60ff028ad92b3bfc001725

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