Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7941163b0fc1aaf…

MALICIOUS

PDF

53.6 KB Created: 2020-08-19 21:06:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a6a0a04a2b12c46dbeee75b086837bda SHA-1: 355711cc73af5ea8f1727110a1037d1d34d65a81 SHA-256: c7941163b0fc1aafbe651e7dbeeee26759ae6ac7208a2f6c3a187d550957c8f6
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, contains the malicious URL and references 'Peaky Blinders', suggesting a lure to a phishing or scam page. The ML classifier strongly indicates maliciousness.

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.com/pify?keyword=peaky+blinders+quinta+temporada In PDF document text
    • http://files.horseshoecafeandcatering.com/uploads/1/3/1/8/131856492/55d86.pdfIn PDF document text
    • http://wotefavax.sundevich.com/uploads/1/3/0/8/130874198/3dfdf384.pdfIn PDF document text
    • http://files.dgw-america.org/uploads/1/3/1/3/131379894/6033505.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/1/0433/8316/0999/files/71347843774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6845/6102/files/tubuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4074/1275/files/kiwafulasenorubem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9593/2584/files/83537836258.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5689/7947/files/vehicle_bill_of_sale_alabama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5172/9567/files/milegofiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5544/6176/files/juniper_networks_certified_associate_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0061/7381/files/31768676659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3366/4408/files/60066800614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6658/1407/files/video_editing_application_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/adding_and_subtracting_fractions_and_decimals_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/figarawevig.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 5

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009213.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9213 5536 bytes
SHA-256: f735edf5785d091016e2fb4384e75a0f033e9ac9dc6c6599323eb3db08a6aaf0
font_01_sfnt_off0000a4c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4C4 10624 bytes
SHA-256: 37c7144f8c71aea010e2986e934d337e2d1e3d5b44eb48986f04f07d4980fa84

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