Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7925e5ccf2ac9c7…

MALICIOUS

PDF

41.5 KB Created: 2020-09-28 18:54:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4a744df118650f69be3705ba42536acc SHA-1: d417517fc166e37ab0ae6e0d32a102911c7d94ae SHA-256: e7925e5ccf2ac9c716514be09eac18837c50f44792ea13a849e1563a02817803
124 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary URL, https://gettraff.ru/mozel?keyword=parts+of+centrifugal+pump+and+their+function+pdf, suggests a lure related to technical documentation, likely intended to trick users into clicking through to a malicious site. Numerous other embedded URLs were also extracted, further supporting the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://gettraff.ru/mozel?keyword=parts+of+centrifugal+pump+and+their+function+pdf In PDF document text
    • http://files.cbcky.net/uploads/1/3/1/3/131383998/satudepiwupigogewe.pdfIn PDF document text
    • http://gogeg.elenagorlova.com/uploads/1/3/1/4/131406841/robenalimug.pdfIn PDF document text
    • http://fiforojit.kocanada-usa.com/uploads/1/3/1/6/131606490/buzawepuji-fabitin-liwemi-dufewelagegawu.pdfIn PDF document text
    • http://wuxopipeb.mandakemp.com/uploads/1/3/1/4/131407045/ddb9e6b1b05fea.pdfIn PDF document text
    • http://files.kineticorllc.com/uploads/1/3/0/8/130813054/9299495.pdfIn PDF document text
    • https://site-1036910.mozfiles.com/files/1036910/22695333432.pdfIn PDF document text
    • https://site-1036659.mozfiles.com/files/1036659/62773914654.pdfIn PDF document text
    • https://site-1036969.mozfiles.com/files/1036969/24161771730.pdfIn PDF document text
    • https://site-1036828.mozfiles.com/files/1036828/paxeraxemu.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/1/0430/2857/8467/files/conair_garment_steamer_with_turbo_steam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8488/0798/files/mckenzie_river_trail_fire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/additive_manufacturing_gibson.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_off00006564.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6564 5568 bytes
SHA-256: 6b13f096f8df1519a6daf36d2dbe3e380c7e0fd0df7f0c7072608fea1b3fe935
font_01_sfnt_off0000782c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x782C 9640 bytes
SHA-256: 20d4f994d85c816ab10ec9346ceb19cacc1102fb56cc60ccf4b8f27bdbc0bd89

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