Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcdbd6ed099c9efc…

MALICIOUS

PDF

44.3 KB Created: 2020-08-20 18:50:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1b5aa3b52162c7bfbedd40e1c8d9fc8b SHA-1: 26dce0e4f778a0b8d0dd60a9f7560756366ed43f SHA-256: dcdbd6ed099c9efc81693bbac64ef9c8a23c317d986da5b24c456b8a481fa3af
234 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the critical heuristic PDF_MALICIOUS_REDIRECTOR_LINK pointing to ttraff.ru. The document body, though heavily obfuscated, contains references to software drivers and the malicious URL, suggesting a lure to trick users into downloading potentially harmful files. The heuristic SE_CLIPBOARD_COMMAND_LURE indicates the document may also instruct users to execute commands, further increasing the risk.

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.
  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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.ru/pify?keyword=apache+ignite+web+agent In PDF document text
    • http://files.amyfreeman.net/uploads/1/3/0/7/130775462/bupazatonosajuk.pdfIn PDF document text
    • http://futamip.occidentallodge436.com/uploads/1/3/2/8/132814742/d992e8421a.pdfIn PDF document text
    • http://zibexu.bareprofessionalsugaring.com/uploads/1/3/0/7/130776394/gawunepewad.pdfIn PDF document text
    • http://files.ncbwsbc.org/uploads/1/3/2/6/132682892/4543938.pdfIn PDF document text
    • http://bifewupa.desertbeagle.com.au/uploads/1/3/1/0/131070588/wamodifuleter_wumon_zukura.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/1/0439/3772/6622/files/94221323308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8837/9032/files/lagekogelefedix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8374/9783/files/qualcomm_atheros_bluetooth_driver_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8531/5737/files/18900492129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4573/2007/files/wadogobawovijamakojezago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3380/5471/files/cost_of_quality_report_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4394/5622/files/85866065921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/empirical_formula_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1940/2405/files/fuboxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9866/9220/files/boxenujisuloromapuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/lajun.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_off00006793.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6793 5108 bytes
SHA-256: ef1b8d72f823208b402966068d0883f2e1c8680ab1ed736580febc951f6f2e2d
font_01_sfnt_off00007902.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7902 13768 bytes
SHA-256: 0e1ac38056344f9319644db3b346665f59f052be127bddcda538fdf08e1ad6fc

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