Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e193c966db3cf0c…

MALICIOUS

PDF

33.8 KB Created: 2020-08-19 02:53:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 51017ddd03bf99cea38c98829396ef01 SHA-1: cafe2cd133d9ca32ee200010f70a7872803746b6 SHA-256: 0e193c966db3cf0cb3f9c39fe9745c158ab5ab89ff260e429936d4b4b72d791e
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and a seemingly benign PDF link. This suggests a phishing or scam attempt using a link farm to distribute malicious content, likely a second-stage payload.

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=balloon+video+song+free In PDF document text
    • http://files.newworldexploration.com/uploads/1/3/1/3/131398547/2978364.pdfIn PDF document text
    • http://files.stuphotoart.com/uploads/1/3/1/4/131409755/zexinevewar.pdfIn PDF document text
    • http://files.campbellanderson.com/uploads/1/3/1/3/131381919/8790973.pdfIn PDF document text
    • http://files.johnmccrea.co.uk/uploads/1/3/2/6/132695602/e138fb7cb368cc.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/1/0432/2318/7616/files/30510635482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2214/0070/files/data_analyst_interview_questions_and_answers_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5019/6392/files/cognitive_dissonance_festinger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7333/0586/files/endocrine_system_labeling_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5362/2182/files/web_to_no_ads.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4678/0566/files/54660423108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dutevitijenunolekegek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0412/5599/files/nodixuraviwigafixavex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6810/4602/files/2573472984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5161/3334/files/jalugowugovipozetovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4294/7750/files/tomiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9236/9823/files/gakoxuvipakexekobafibepes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5339/0743/files/chacha_chaudhary_online_comics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6123/8168/files/toxiromo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9503/8877/files/29951988758.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004853.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4853 5184 bytes
SHA-256: 400a49253c3c2b5cd456ed351b00959720b5c6700f9f5745827c1c89826a61dd
font_01_sfnt_off00005a06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A06 9540 bytes
SHA-256: f81575097520ce014a5734715e987e1ede4cfd104b2e28bf2d134b039e55af4d