Malicious PDF — malware analysis report

Static analysis result for SHA-256 7649d3ae9978be27…

MALICIOUS

PDF

37.4 KB Created: 2020-08-27 23:32:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c9d69aa29ec12f3d27cd5cd6bfea6369 SHA-1: 936fed3d8eeb58ca6c3a1468a82f524894f5dceb SHA-256: 7649d3ae9978be27205202475b13a7e03a8f0727a2e159fbeac30bdd389e837a
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=how+to+bypass+origin+sims+4', which is also flagged by heuristics as a malicious redirector. This suggests a phishing or scam attempt disguised as a download lure.

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=how+to+bypass+origin+sims+4 In PDF document text
    • http://files.peckpagoriawedding.com/uploads/1/3/0/7/130776268/kijevafa.pdfIn PDF document text
    • http://files.merriemoore.com/uploads/1/3/0/8/130813526/434706.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/1/0431/2619/4330/files/maths_skills_for_a_level_biology_aqa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3279/5541/files/legevubabukikisipuzelime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1191/4403/files/conflict_at_work_interview_question_answer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5543/9263/files/sudivakotepupaxuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4986/1791/files/apk_nox_emulator_for_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/6495/8616/files/55092559627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7427/3948/files/fivuzawolexiramon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5573/5193/files/35959666591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7528/8732/files/bihar_stet_2020_computer_science_question_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/6206/8127/files/stadler_form_charly_little_fan.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49A3 5492 bytes
SHA-256: bbdb0dff82cde58b29f0a1ef60f5a428d805b326c996bb139f2e99ac158aa547
font_01_sfnt_off00005c43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C43 2904 bytes
SHA-256: 1bbb995726c00b9812a117f774d6eebf4996b444b9057f31993f9a83f058a1cd
font_02_sfnt_off00006838.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6838 9468 bytes
SHA-256: 01a170dc5fb2295080bd50301a3228136447d990b18a41f47a6efe0184808713

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