Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d109b7ce97661fc…

MALICIOUS

PDF

40.8 KB Created: 2020-08-17 12:17:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 17a34ce10433e695dda9b31ebd610e18 SHA-1: d5867cf5c31ec5b68bcb10837b835833506668d7 SHA-256: 1d109b7ce97661fc17091fd43a0f7e11f0a5ad51dc02b18d8853f85ec26a0797
202 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body and embedded links suggest a lure for users seeking contract templates, likely leading to a phishing site or a download of further malicious content. The presence of a large number of PDF links indicates a link farm strategy, potentially for SEO manipulation or distributing malicious files.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=freelance+website+design+contract+template In PDF document text
    • http://files.livingcanvasmedia.com/uploads/1/3/2/6/132681891/luzezuvepemo.pdfIn PDF document text
    • http://files.xebex.eu/uploads/1/3/1/3/131380342/duvogiwamoparinus.pdfIn PDF document text
    • http://deruvaz.4muttspetspa.com/uploads/1/3/1/0/131069934/purufokegisones.pdfIn PDF document text
    • http://files.goolsbygreatdanes.com/uploads/1/3/1/3/131384679/sugirezunuvu.pdfIn PDF document text
    • http://posev.majesticeggdesigns.com/uploads/1/3/1/4/131482995/b7068.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/1/0429/6104/3605/files/70977369711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/maminowovuwidivav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7044/0095/files/fivotegexuputomevapitata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3884/2779/files/46799576923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8994/2945/files/29759544439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7106/8577/files/buku_amanat_haji_hadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6338/6017/files/sutujavulusupavidevug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mulobovapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2483/4982/files/66843991658.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2250/8454/files/roropob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7333/8533/files/42767079026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5261/4311/files/pakese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3161/5909/files/xosegu.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_off00006132.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6132 5580 bytes
SHA-256: f87199c4f2353c657cf1dfb65d82127e633dbe6326659bebc4c4a04ddd751f73
font_01_sfnt_off00007418.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7418 9932 bytes
SHA-256: 724ffe7a456715e5072218ae4e28777fcd787cc7fec3d357aa0cf4f1de73f770