Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ee34935a34cda91…

MALICIOUS

PDF

39.3 KB Created: 2020-08-23 01:16:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fffdc33bc6d17548b5d2ff081f09d803 SHA-1: 526f8d204406a3c21e8d2aef1a28689d16ee46fa SHA-256: 6ee34935a34cda916b1a3227b19ea12eac3e2830f3b2780fa37a5dc1fc1930c3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many pointing to redirector infrastructure like 'ttraff.ru'. The ML classifier strongly indicates maliciousness, and the presence of a malicious redirector link suggests this document is designed to lead users to harmful content. No scripts were extracted, but the link farm and redirector are sufficient indicators of malicious intent.

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=meaning+of+rain+fell+in+sheets In PDF document text
    • http://files.aroundthepros.com/uploads/1/3/0/8/130814769/guzujofawutef.pdfIn PDF document text
    • http://files.rosedalecurriculum.com/uploads/1/3/1/1/131164460/farosi.pdfIn PDF document text
    • http://renaza.toprodbassmasters.com/uploads/1/3/1/3/131398405/xanemojag-jumozenugop-kuboligiwi-dasaz.pdfIn PDF document text
    • http://pomigo.householdarchaeology.org/uploads/1/3/0/7/130739777/puzaraxu_sevorij_baxibuxud_xezevekevox.pdfIn PDF document text
    • http://vufuja.miniaques.com/uploads/1/3/1/6/131637814/wokumine.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/1/0430/8369/4247/files/jabisasanixevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4729/5898/files/utorrent_app_install.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7506/6273/files/99496298476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8801/8598/files/english_abc_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/79807552326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6709/5705/files/91680638591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9807/0435/files/95859590540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jezimix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0594/1672/files/fonevujadorotalibogadanel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2222/8379/files/egerton_university_admission_letter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3400/2086/files/tabegawiduxisiwaberoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8089/3084/files/gezowatironida.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_off00005d4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D4D 5032 bytes
SHA-256: 5a5a303b22b66f8b3c190b6765729355ced28586dad9086a75ffa419670500f1
font_01_sfnt_off00006e6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E6A 9920 bytes
SHA-256: 728ccd48e4e33f4f3255055cff766a85dc0fbed3d1ee04e446857a4faf6e7831