Malicious PDF — malware analysis report

Static analysis result for SHA-256 eea6fc2073ded278…

MALICIOUS

PDF

42.0 KB Created: 2020-07-29 21:27:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9c84e5b70cdc4f470f345c4b7a9869be SHA-1: a4372a324a5247113a0529d1ae891dd0e2fae45c SHA-256: eea6fc2073ded2788ce8a7a6cfe857d02090317b0570a18ad689bd166924be3f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. The primary malicious link, 'https://ttraff.ru/pify?keyword=anne+ancelin+sch%25C3%25BCtzenberger+ay+mis+ancestros+pdf', is identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links designed to manipulate search engine results, likely to distribute malware or phishing content. The ML classifier also strongly flagged this PDF as malicious.

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=anne+ancelin+sch%25C3%25BCtzenberger+ay+mis+ancestros+pdf In PDF document text
    • http://files.aimeetanos.com/uploads/1/3/2/7/132740445/solofaxa.pdfIn PDF document text
    • http://files.katydunlapyoga.com/uploads/1/3/1/3/131383297/tuketuwesafe-witibowebuw-wuvaxoloxa.pdfIn PDF document text
    • http://files.brooksidegundogsllc.com/uploads/1/3/1/0/131070192/zoketezuwegaji.pdfIn PDF document text
    • http://files.fit4lyfeathletics.com/uploads/1/3/2/7/132741241/2653128.pdfIn PDF document text
    • http://files.fenestraglazing.co.uk/uploads/1/3/0/8/130814234/pomikijorufobufuwez.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/1/0429/4007/2092/files/jukeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6696/3621/files/wisisifebodadevit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4633/7703/files/64720648128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4947/6518/files/50710443231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7260/1756/files/2502352996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4523/1515/files/72451442608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8012/2532/files/90513383455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/80237211216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/5323541541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/21156430775.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8961/7311/files/23531124648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8386/6007/files/61141473083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32867625585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3468/1250/files/51083254965.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_off00006145.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6145 5756 bytes
SHA-256: 2735ed9ac410002b3eb43f3ccf0385be5c4ee33332cc89ed153cb9525538b04a
font_01_sfnt_off000074b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74B0 10752 bytes
SHA-256: 30c799125b913ce4a01feb3d6a63d130c273c8beacf015e2f196d3261f804288