Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2c0893ce5864f9a…

MALICIOUS

PDF

51.7 KB Created: 2020-08-04 13:55:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cd440a4537e2525624f620e9f3660a14 SHA-1: 2df85f7f0e2b34c949faff72b44be899047088b1 SHA-256: f2c0893ce5864f9a00c59a697a0649a9ffd322787b84e80c4bd69cd9f618b081
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is designed to lure users into downloading further malicious content. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. The presence of a link farm heuristic further indicates a coordinated effort to distribute malicious links.

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.ru/pify?keyword=all+star+superman+comic+pdf In PDF document text
    • http://files.wjamesd.com/uploads/1/3/0/7/130738870/2277303.pdfIn PDF document text
    • http://files.fitnessisfreedom.net/uploads/1/3/1/4/131438234/pirasikekatel.pdfIn PDF document text
    • http://files.mindfulstrides.org/uploads/1/3/1/8/131872054/kidififewejagazir.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/1/0430/8677/4436/files/nikagozolunegalobeninemi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1355/4855/files/zatojadupuzifirar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2558/7610/files/javascript_group_by_two_properties.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5567/6580/files/wuresiranadufamegokez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/1517/2259/files/beccaria_crime_and_punishment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9153/3725/files/wonugaxikama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5645/5067/files/fewedabexevazasifes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jezimix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/10217245918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2625/9876/files/install_git_os_x.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5117/9416/files/fexutoxalojemajixovufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3562/3578/files/1754623418.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 4

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_off00008bc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BC9 5288 bytes
SHA-256: 9168059780a92f6725795ad01ff7e2f0f4e8b59b74701bd30801b5d8ba97343c
font_01_sfnt_off00009dae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DAE 10572 bytes
SHA-256: 79ee2786819b8c4b3b819bba3b3ef1dd7a3b0d6de90002ae2afabc4d2108d9d3

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