Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2573447430912c5…

MALICIOUS

PDF

56.0 KB Created: 2020-08-05 04:41:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 262be0b3ffd0b6fe13c7272004cd7e97 SHA-1: 3edd480500e1c147a9d405f4f5111ae5301ec8c2 SHA-256: b2573447430912c5054f342fe73afb5b15536fde7ffba66c673db5a85ef5b04e
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a Dell PowerEdge R730 specification sheet. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the embedded URL, https://ttraff.cc/pify?keyword=dell+poweredge+r730+specs+pdf, leads to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic suggests a large number of external links, with the first being https://cdn.shopify.com/s/files/1/0431/7102/0954/files/88738004746.pdf, indicating a link farm designed to deceive users.

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.cc/pify?keyword=dell+poweredge+r730+specs+pdf In PDF document text
    • http://files.ipadbootcampforparents.com/uploads/1/3/0/7/130775249/joromagidoxi.pdfIn PDF document text
    • http://fiwuli.advancedmodularmanikin.com/uploads/1/3/1/0/131071252/a8aea93f.pdfIn PDF document text
    • http://files.mhecblacon.com/uploads/1/3/1/4/131437351/vasak.pdfIn PDF document text
    • http://files.drjoybozzo.com/uploads/1/3/1/3/131383294/2224778.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/1/0431/7102/0954/files/88738004746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/42434911710.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5762/4726/files/to_selena_with_love_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/minecraft_pe_0._11._1_seeds.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3136/3747/files/47934792049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7327/4018/files/dijinuvalomumufamuwomovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5032/6426/files/fivimobuzejuvumovagaram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8166/2628/files/geruzevifuno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0198/6723/files/26947722607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5122/9089/files/21609795891.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_off00009c63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C63 5592 bytes
SHA-256: bd91aac192257ba865a44d04a2ed2fdf7cf90b7dcfec5a67021324b417379694
font_01_sfnt_off0000afa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFA2 10428 bytes
SHA-256: 3dc30bc0c50c0ca8892bd43dc0e69eb9922dd58ef1b6685518b4303b87ca6e64