Malicious PDF — malware analysis report

Static analysis result for SHA-256 d59e66b0e976115e…

MALICIOUS

PDF

39.7 KB Created: 2020-08-14 19:52:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 08edadec6aae489ab55a7e4e3d57e1aa SHA-1: 06a279d82164285c55c63ebc972fca4d8a3cf188 SHA-256: d59e66b0e976115e8f7a43025804e662eb7ed6d748ab3990a9385e703b20deaf
202 Risk Score

Malware Insights

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

The PDF contains a link farm and a direct link to a redirector, indicating a social engineering lure. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the redirector points to malicious infrastructure. The 'SE_CLICKFIX' heuristic suggests the document is designed to trick users into executing commands, likely to bypass macro restrictions and download further payloads. No scripts were extracted, but the overall pattern suggests a downloader or phishing attempt.

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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=open+office++free+windows+10 In PDF document text
    • http://files.kostichart.com/uploads/1/3/0/7/130775607/lamomirefimisiwuxafe.pdfIn PDF document text
    • http://files.webwayplus.com/uploads/1/3/1/8/131871740/fupuzisodunamenup.pdfIn PDF document text
    • http://files.aardvarkadaptivemodifications.com/uploads/1/3/2/6/132683181/nupikixit-webidaxoxid-relimimisi-geranikexedoji.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/1/0433/2702/9400/files/botodojukazokuserimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7572/3673/files/vermeer_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/waratavot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1081/7180/files/hcm_ka_full_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7940/1634/files/libros_abraham_hicks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1605/2123/files/rodovabagavewelezefodeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2033/6807/files/past_simple_and_present_perfect_advanced_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5395/6766/files/simple_algebra_word_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3815/4650/files/cattle_production.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0510/0707/files/10888479105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1865/7697/files/buzukemupopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6885/9303/files/sedopokoreludami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9186/8310/files/5196777580.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 1

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_off00005dec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DEC 5220 bytes
SHA-256: c956ffc0acecc66c59f79f13c8437eac33fd3ed8286361a6c38cef4e01fa5880
font_01_sfnt_off00006fdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FDB 9980 bytes
SHA-256: 28566d3ca1806e81516cb0014e3cde9ed2e0b45545d4702f872240b64ea7366d

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