Malicious PDF — malware analysis report

Static analysis result for SHA-256 07cc63b78fa43555…

MALICIOUS

PDF

45.0 KB Created: 2020-08-21 03:42:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3e974055d05323dde2014a726d8be941 SHA-1: d9b6949eeb96ecae4a8fe84b06861e7601864de4 SHA-256: 07cc63b78fa435558e6bfe5151c8ea17ee32a6cd31f9a71b958a1f6cdcc15105
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains embedded links that redirect to known malicious infrastructure, specifically a redirector at 'ttraff.ru'. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users to a malicious site. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple external links, some pointing to benign Shopify URLs and others to unknown domains, indicates a potential link farm or phishing attempt.

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=kuiu+guide+pants+rokslide In PDF document text
    • http://files.jessethomascomics.com/uploads/1/3/1/4/131409761/jopiliji-xudegupiro-faxonuvositog.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/1/0434/6881/6544/files/ignou_bcom_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8991/2218/files/hyper_terminal_for_window_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7995/8679/files/bakenosoponoxogiren.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2440/6933/files/40384358052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5143/4659/files/sunasejomekogem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0028/1762/files/87564585810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3243/5093/files/malayalam_bible_study_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/gumeluvepitugotebofuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0639/9388/files/hard_spelling_bee_words_for_college_students.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wuwikeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1509/2894/files/does_windows_10_have_opengl.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005cbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CBE 5160 bytes
SHA-256: 776273d817315ebaa1e78f49dce3572a935ae9ab1df7711c64c8a2e9035876d6
font_01_sfnt_off00006e56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E56 10536 bytes
SHA-256: 62c3d449b8533df9828ce25c795081eb3582c33924083a9cc020c699d0a6c064
font_02_sfnt_off00009293.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9293 16116 bytes
SHA-256: edc33fe94617b35fa5734827a91efdc9665031ac3a5a8b8018a6396f4204b3d2

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