Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc7e8b4476b0b8af…

MALICIOUS

PDF

64.5 KB Created: 2020-07-30 18:22:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b6f287d18948bb8a55eb1e9051972138 SHA-1: e6a6cfe17c8ac4a3b6d7f5426176b699eb6f9437 SHA-256: cc7e8b4476b0b8afd34cb28e0c1427966cbc0922d0a3a95df1cfe6cc212ba90e
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to be a user manual for a Buderus Logamatic ERC, a common lure for phishing or malware delivery. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a deliberate attempt to drive traffic to malicious sites.

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=buderus+logamatic+erc+bedienungsanleitung+pdf In PDF document text
    • http://files.auzpexbeauty.com/uploads/1/3/2/6/132680796/2759134.pdfIn PDF document text
    • http://files.six-tech-usa.com/uploads/1/3/1/6/131606583/5551052.pdfIn PDF document text
    • http://files.glambarbyceline.com/uploads/1/3/0/7/130776401/fbbbf341ab3.pdfIn PDF document text
    • http://files.snydersbuildings.com/uploads/1/3/1/3/131380558/5f42a7.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/1/0433/9807/0435/files/9294255432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6544/2455/files/82312264720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8559/4775/files/38695073577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/vupex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7284/0090/files/70961653904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0261/0335/files/25563153400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8632/2593/files/bedadopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/4659790584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0576/2974/files/lugegisomekotidogatuxotev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9832/4638/files/89314323040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7617/3472/files/83787413503.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 8

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_off0000b06d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB06D 5548 bytes
SHA-256: f0dec28e465d971b31edd731fba75244d4e97c54b93fed74fe0832a7c964b7d2
font_01_sfnt_off0000c322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC322 15664 bytes
SHA-256: fdc484fbccc28051626dd99602dfb515d520c7a97deb233c8ec0587911ad38f2

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