Malicious PDF — malware analysis report

Static analysis result for SHA-256 60ee5e4dedbaac67…

MALICIOUS

PDF

39.7 KB Created: 2020-08-17 15:07:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52c32640a85b544ed40d3fd51a2bfde2 SHA-1: 93b92ed7a1608a71b52cfa7c1452a87f0d9e29e9 SHA-256: 60ee5e4dedbaac674e6ed847ea0087a94ec8721ed97ce5474a3865cc459dc4da
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body and heuristics indicate a lure for free downloads, likely leading to malware. The ML classifier strongly supports the malicious nature of this PDF.

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.com/pify?keyword=best+mp4+to+avi+converter+apk In PDF document text
    • http://files.artscarafes.com/uploads/1/3/0/8/130873894/516998323d28.pdfIn PDF document text
    • http://files.rcrequestrian.com/uploads/1/3/0/9/130969488/7898825.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/1/0437/1234/8315/files/causes_of_chronic_diarrhea.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8909/1998/files/61295135845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9823/4270/files/91712941118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/47576231687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3565/5335/files/protocols_in_computer_networks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/sesadix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7810/4728/files/zorusopasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8299/7148/files/adjectival_and_adverbial_phrases_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2161/5772/files/reported_speech_definition_and_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2482/6014/files/veludekijurimibamel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/git_bash_prompt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8381/7375/files/72860830003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9869/4049/files/ableword_download.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 3

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_off00005db5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB5 5308 bytes
SHA-256: c7e4dc7d969b1eab5712a23cbbd2cd75c2aa48fccd08ad881593f5d884c93a1a
font_01_sfnt_off00006fb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB8 10048 bytes
SHA-256: b75a470a257b15f78cb889197f772192833afed88126139792bcce0680fed7e2

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