Malicious PDF — malware analysis report

Static analysis result for SHA-256 342420d0060118d5…

MALICIOUS

PDF

43.9 KB Created: 2020-08-01 13:43:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4a6cfc81f8e2a83456ed656896808c0d SHA-1: b4db5f6b74248902a83c3e9c7048507221f3fa7e SHA-256: 342420d0060118d5776461d98e38cf0c93cd5a6defedd6cbc7fca5c1d636c052
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links designed to appear as download resources, but they redirect to a malicious domain identified as a redirector. The ML classifier strongly indicates maliciousness, and the heuristic firings confirm the use of a malicious redirector and a link farm for SEO-based phishing. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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.ru/pify?keyword=darksiders+3+mysterious+stone+sigil In PDF document text
    • http://files.biglervillemusic.org/uploads/1/3/2/7/132710603/suvuboxumavesesibape.pdfIn PDF document text
    • http://files.healthybeautyenergy.com/uploads/1/3/0/7/130775982/maranif.pdfIn PDF document text
    • http://files.philadelphialogisticscenter.com/uploads/1/3/1/1/131164476/jokimolomi.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/1/0430/5115/5618/files/96405913002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9469/5324/files/xefokavasada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9018/2297/files/gibepunovibuxos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9649/0663/files/guxizozanudan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8681/4109/files/17362449885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2297/4117/files/fakoxobusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8130/9085/files/8784376901.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pajakeveposemilakojataza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6608/7838/files/wiwobomadumowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/67028188887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3550/0439/files/bijusutajozififubofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/musigusuwekun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5442/3445/files/demuxebuz.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_off00006d33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D33 5476 bytes
SHA-256: c374271a93cd7000b7d692fcd4760763fd1aa2dee4c654340f8eec05491426fd
font_01_sfnt_off00007fcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FCC 10088 bytes
SHA-256: 1545ff21934a292b97cd6393f8a99ac3890239c72be5a6599b9b8f543b76339b

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