Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e8e3865b6f29879…

MALICIOUS

PDF

42.5 KB Created: 2020-08-03 02:07:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f0b5dff47cbb613d2faa5d40e396d8c1 SHA-1: 074cc121e6f09705be487ca3765e732982ce9e3d SHA-256: 9e8e3865b6f29879ec40660e46d2087dfbfd6fc2cad78cf8c7098de321a76fb1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic indicating it is a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=compound+versus+simple+interest'. Additionally, it exhibits characteristics of an advance-fee scam lure, suggesting the document's content is designed to trick users into clicking malicious links. The presence of numerous external PDF links, many hosted on Shopify, further supports the link farm heuristic. No scripts were extracted from this sample.

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=compound+versus+simple+interest In PDF document text
    • http://files.divorcecoachingandconsulting.com/uploads/1/3/0/8/130874518/bejam-soselovorifat-tekumubobup-powidonuvewadar.pdfIn PDF document text
    • http://files.congrevelab.org/uploads/1/3/0/7/130776573/pumuvufofu.pdfIn PDF document text
    • http://files.chepclub.com/uploads/1/3/0/7/130776265/676778c695cd10.pdfIn PDF document text
    • http://files.gftrails.ca/uploads/1/3/0/8/130813639/vapelimelin_jujotub_judonemaweli_xedejewofulijew.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/1/0430/4207/8877/files/busixemonefemosomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/lewajegupiwojorefifire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4655/2230/files/95794288782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4472/4133/files/xabularawogofonodositoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/734523816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/fogatabefadigaril.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7334/6472/files/mudasomepux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2141/8147/files/89188077402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gijamibumiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9799/5941/files/bigumovize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8529/9876/files/69543789227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5326/0701/files/vivupufovotiveluzulepipug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9476/8792/files/misutagisewuluwatesofire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3369/8209/files/sisenekukelub.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_off00006858.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6858 4860 bytes
SHA-256: ca8e89706fa29f5895b70a26d19a7d7e09c93ad49cac8fd14d5dbfbdf01206c3
font_01_sfnt_off000078cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78CC 10560 bytes
SHA-256: a4330dfc5d33f956805b503f5834f0c82e986063a78aa24c020e9194a8899ebb