Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dbe7cc7c7595a42…

MALICIOUS

PDF

49.6 KB Created: 2020-07-29 12:55:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2bf3fc1bed1a608ee2e6883ca4bc331e SHA-1: 80954a58f8029cdbc285dede6b0576fe61fe9959 SHA-256: 6dbe7cc7c7595a42b2ebdb8aabb39e23e8f938197c5467d2bbdf17dc658aa21b
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are SEO-optimized and point to redirector infrastructure like 'ttraff.cc'. This suggests a phishing or malware distribution campaign, likely using the document as a lure. The presence of embedded URLs and the ML classifier's high confidence further support this assessment.

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=resuscitation+guidelines+2020+pdf In PDF document text
    • http://files.disasterdiary.org/uploads/1/3/1/4/131437147/dosemipo.pdfIn PDF document text
    • http://files.mx.thomasmadden.org/uploads/1/3/1/4/131437457/kavituvavotugaz_babefuda.pdfIn PDF document text
    • http://files.win19.org/uploads/1/3/1/4/131453143/5455180.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/1/0428/9291/8937/files/jegozebexewefovisapevebeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5158/1597/files/lizanamibudoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0965/4432/files/bebesekasemomuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5981/4306/files/83831899255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1308/7142/files/96283758943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7703/3372/files/82064361269.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0481/0648/files/rutegutuduvukomukid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9000/1572/files/zatife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9223/0823/files/fumava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5865/8454/files/10380866462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8513/6021/files/vuduzapejazoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2344/0804/files/xixajukikoduk.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_off000083df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83DF 5388 bytes
SHA-256: 1208af7bd99e1f7c2b27fbe99b12e53c97eba641a7eaf882d959166f7c47d2a6
font_01_sfnt_off00009649.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9649 10088 bytes
SHA-256: cd13224032175461459303b61cff1a9a52f3dbd296734cb0cfa524f2ed540ded

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