Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c6d2d1d2cf1620b…

MALICIOUS

PDF

40.3 KB Created: 2020-08-09 19:38:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 48ec7eba077ce123f16c6ac8ead7b3d2 SHA-1: 30165dafa515f114dc1dc075410164fbff3b96c2 SHA-256: 8c6d2d1d2cf1620b4b1799882efb6e7b63bda4cec3a4cc86d907a76c8b6af3aa
234 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious domain, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The PDF also hosts a large number of external links, suggesting a link farm for SEO manipulation, as flagged by PDF_SEO_LINK_FARM. The document body, though partially corrupted, contains the URL that triggers the malicious redirector. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.com/pify?keyword=zygomatic+implants+the+anatomy+guided+approach+pdf In PDF document text
    • http://jipima.techinfinityconsulting.com/uploads/1/3/1/6/131637016/gazapibipi.pdfIn PDF document text
    • http://files.equestrianeliteatapplejackfarm.com/uploads/1/3/0/7/130775784/dubamab-giwolego-zezeji-besexabudu.pdfIn PDF document text
    • http://files.sanfranrevelstoke.org/uploads/1/3/1/6/131636758/c81eb1a70.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/1/0437/4790/1592/files/bewolajagexuvezozeluniviv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7257/0012/files/5794058502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1721/4874/files/22476381402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2666/8952/files/74103855574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4138/2812/files/bihar_stet_question_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5891/3689/files/32873651413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dekafarisajanitid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50751207741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9845/4682/files/nidini.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 5

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_off00005c67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C67 5628 bytes
SHA-256: 2c4ad0041712f6a10add6d3792eab7f3e4c0545a4fad2153b61ca72c6ee4d609
font_01_sfnt_off00006f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F6D 10900 bytes
SHA-256: a14e5faab51fec59c8e3bdb527bbd8bf91887a9bcb357886ef7261bce327acf2

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