Malicious PDF — malware analysis report

Static analysis result for SHA-256 6eec3b216a50831c…

MALICIOUS

PDF

42.7 KB Created: 2020-08-24 12:50:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42f00ee37ad96813f3209f8b55ab51c6 SHA-1: 4c91e95c2175460a3cfc3545f75441873d1a9b14 SHA-256: 6eec3b216a50831c749cd730edc7c56a83f84b117309015a3ba90c8a927dec59
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, indicating a link farm or phishing lure. The primary malicious link, 'https://ttraff.cc/pify?keyword=codominance+worksheet+key', is identified as a redirector to malicious infrastructure. The document body, though heavily obfuscated, contains this URL and others, suggesting a social engineering attempt to trick users into downloading further 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=codominance+worksheet+key In PDF document text
    • http://posik.lawpoa.com/uploads/1/3/2/6/132683071/vulelazon.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/jabisiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5275/2283/files/gomorewofir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/45975931436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5198/3783/files/agents_of_shield_season_1_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/8722/4993/files/58588050734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9296/7581/files/l_a_w_ka_full_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3813/7755/files/dinetuwuvelupul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8421/8532/files/5268588261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1708/4839/files/kaxonezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1356/0727/files/zugigevelafenevepifal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1671/5429/files/dusofivib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2867/1646/files/kenichi_ohmae_borderless_world.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 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005bc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BC8 5216 bytes
SHA-256: 982f9cf65eaf88d717ebbba68671ac09cab3c5dcc6b080ca33ed424f402e9cb1
font_01_sfnt_off00006d6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D6D 10136 bytes
SHA-256: f31381d0aa91863c5ece879266bbd62b6f0bbd665d82d4695416b7b98d6462dd
font_02_sfnt_off0000902f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x902F 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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