Malicious PDF — malware analysis report

Static analysis result for SHA-256 541811e55b4b5967…

MALICIOUS

PDF

39.5 KB Created: 2020-08-14 13:41:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42121f650d281e8443801cfe7e8c85e0 SHA-1: b389283a448558bdbfcee11172bdba7cbe1d2099 SHA-256: 541811e55b4b596733ed183d0043b7872d5965c5cad0ec410c880436d77a6bc1
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The presence of a malicious redirector indicates an attempt to lead the user to a harmful destination, likely for further exploitation or credential harvesting.

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=dwight+schrute+meme+template In PDF document text
    • http://files.freerangebird.org/uploads/1/3/0/7/130776490/xajisokimik_midopafimup.pdfIn PDF document text
    • http://files.aprollers.com/uploads/1/3/0/7/130739986/runel_banipemas_rusajevir_mesor.pdfIn PDF document text
    • http://files.tirepeaterclub.com/uploads/1/3/2/7/132741045/gexutubivubojijuw.pdfIn PDF document text
    • http://files.heatitupandkeepitcool.org/uploads/1/3/0/8/130815213/6072080.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/1/0435/9431/7981/files/48339955079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/7186/8821/files/complejo_articular_de_la_rodilla.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0055/1830/files/drops_of_jupiter_piano_sheet_music_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4571/5109/files/interstitial_lung_disease_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7375/6572/files/ielts_general_writing_task_1_sample_answer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4405/2898/files/77380861325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1322/6139/files/mibokaloziw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dogazuzotefoninu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9032/2342/files/45123605864.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 7

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_off00005beb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BEB 5440 bytes
SHA-256: 9901a7a150bcd2924f09751ce95472fad4b0712d53a8ea0c2ffe19467c3e4960
font_01_sfnt_off00006e5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E5C 10288 bytes
SHA-256: a447c11f14bb2a291f924fe0e2c396163c206aa9faf2a87b15c2b48a0a497ba0

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