Malicious PDF — malware analysis report

Static analysis result for SHA-256 4506f0c45fc32314…

MALICIOUS

PDF

45.1 KB Created: 2020-08-07 02:29:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ec1bfd44e28d0dcf7bbcd6ef99fbaa23 SHA-1: 2cdf6344b3bf156ca27feb3d51bcc2f72b5c0aef SHA-256: 4506f0c45fc32314db48b98705a024d77a16ecbba072a88b964f10c34ddf30b0
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, disguised as a search query for a camera manual. The document body is heavily obfuscated but contains the same lure text and URLs. The presence of a link farm further suggests malicious intent, likely to drive traffic to malicious sites.

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/wb?keyword=lumix%20g7%20manual In PDF document text
    • http://files.ajameskolar.com/uploads/1/3/2/7/132740260/e60e65e5e810e84.pdfIn PDF document text
    • http://files.soultrainchoir.com/uploads/1/3/0/8/130814676/8238947.pdfIn PDF document text
    • http://files.themadamestusk.com/uploads/1/3/0/7/130739366/konudijo_fewaxinuja_xuluxot_bubitaf.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/1/0434/1828/8284/files/message_in_a_bottle_bass_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2812/7654/files/additionsverfahren_gleichsetzungsverfahren_einsetzungsverfahren_aufgaben.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2561/3468/files/tekibijakus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2548/9305/files/juteto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5877/3662/files/79076967976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1202/1662/files/54631608458.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0848/2724/files/jurnal_boraks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2996/9561/files/xexigenode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5441/3462/files/wordly_wise_book_8_lesson_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5657/8212/files/losevobenavilinomifabubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9513/0266/files/82919610595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3082/2555/files/99512604244.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_off0000739f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x739F 4820 bytes
SHA-256: eb23ff6112ccdf65125d47e13333ab3f824876b733c0b11fab6c667430c8010f
font_01_sfnt_off00008403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8403 10656 bytes
SHA-256: aa9e0085d1352a7fd8c1ae5c994e111db889a115303de8719685af785e341e9e

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