Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcc184516dc41d01…

MALICIOUS

PDF

48.6 KB Created: 2020-08-22 00:27:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7214e8096a91bb303079a2676a94f1a6 SHA-1: 31b19fab2a1f5a927567ea860afe86f5dc51b8f3 SHA-256: bcc184516dc41d01258667cca4e48cbaec7f5f6e55ba153a652fab06c6f7bb80
194 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to heuristics indicating it is a link farm and contains a redirector link. The primary malicious URL is https://ttraff.ru/pify?keyword=talk+about+yourself+sample+pdf. The document body contains numerous URLs, many hosted on Shopify, which are likely part of the link farm. 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=talk+about+yourself+sample+pdf In PDF document text
    • http://kisavo.plitechnologies.com/uploads/1/3/0/7/130739590/6434941.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0635/9713/files/85102589491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7504/2457/files/modelo_neoliberal_en_mexico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9183/6566/files/12237052644.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/fluid_mechanics_cengel_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5491/4981/files/autocad_underlay_slow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1790/4039/files/74748650407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8631/5682/files/94501588454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9676/8673/files/rujikoribelupagosovarena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2705/4237/files/8031578462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1474/1413/files/jorujofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4499/3181/files/92715387476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2681/6932/files/nidorino_gen_4_learnset.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

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007252.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7252 5172 bytes
SHA-256: ee040d87ba4f56ae0c70850b4e2fb0a4db6fe25c3443fa1627793cec4ccc9b43
font_01_sfnt_off000083f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83F6 10244 bytes
SHA-256: 2179afcf46ca5e2915fe123da1170cba79ef469129669c2ed5a312bb3475d7a5
font_02_sfnt_off0000a70d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA70D 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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