Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c58514e0df496d3…

MALICIOUS

PDF

61.1 KB Created: 2020-08-16 01:42:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0567aca2227b5d7b6d87569480132022 SHA-1: 381869d90cc3d13f27203badb5d3cecde1ec8ecb SHA-256: 0c58514e0df496d36e62b5dad5c7070a66c28cb2ca01b9a71d2e54f6f6028efa
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed for SEO manipulation. The primary malicious URL, 'https://ttraff.cc/wb?keyword=all%20verbs%20list%20in%20english%20pdf', is identified as a redirector. The document body, though heavily obfuscated, contains this URL, suggesting the document's purpose is to drive traffic to this malicious site, likely for phishing or malware distribution.

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/wb?keyword=all%20verbs%20list%20in%20english%20pdf In PDF document text
    • http://files.empowerunit.org/uploads/1/3/1/3/131384468/lozapiwo.pdfIn PDF document text
    • http://xidazus.girlstothemic.org/uploads/1/3/1/0/131070314/fanezufu_difebimifa_tolaxi_vejuwi.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/1/0430/8575/8628/files/35632552171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2770/1655/files/11442645367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71409998288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6280/4136/files/14880784337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2345/6661/files/98767412830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6163/1389/files/6991976499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5944/4889/files/basic_korean_language_with_english_translation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5874/8837/files/40682465761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3636/8283/files/85835084133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2483/4982/files/awaken_online_dominion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7675/4344/files/72385627085.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_off0000ab56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB56 5284 bytes
SHA-256: 95a7f02040d6093b114dd144b3f85a36dd672e20c630d984ccb3ce44e6a232b2
font_01_sfnt_off0000bd40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD40 13476 bytes
SHA-256: f7368f7809ba05f71b541383e98b3fb0260c297f85d3392f4f5aa5e4572ab0b0

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