Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bf614c5eeb727e1…

MALICIOUS

PDF

41.0 KB Created: 2020-08-13 03:46:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7df8dd6cd3b6c08eb6c02f22e761f3c8 SHA-1: 3f9bde966af6c0cd69bf6b18de865f6324dedf64 SHA-256: 6bf614c5eeb727e12e8b3ba12ed7bcde93c5bcb2402feaf6ca14665740dcabdf
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a redirector infrastructure designed for SEO-based phishing. The primary link, disguised as a user manual, leads to 'ttraff.com', a known malicious redirector. This suggests the document is part of a campaign to drive traffic to malicious sites, likely for credential harvesting or malware distribution.

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/wb?keyword=micrologix%201400%20plc%20user%20manual In PDF document text
    • http://files.shsdebateyu.com/uploads/1/3/2/6/132682327/7f0c2.pdfIn PDF document text
    • http://files.saunagoods.com/uploads/1/3/1/6/131636758/cbb38.pdfIn PDF document text
    • http://files.alexheadadventures.com/uploads/1/3/0/7/130740625/776290ead9.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/1/0438/0629/4176/files/25690507473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6392/6174/files/75675160640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1096/4131/files/84297512384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6405/6225/files/mobile_games_addiction_research_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1335/6189/files/xbox_controller_button_layout.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4638/8380/files/86484890566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7727/1713/files/zobajijedazonalexurotag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0560/6049/files/90520854502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2996/8534/files/equality_act_2020_scotland.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5805/2763/files/download_magic_arena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3277/1734/files/medical_genetics_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7927/0554/files/60929935522.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 2

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_off00005cb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB5 5608 bytes
SHA-256: 57020c1d3743c78c40bcdcf8008149ec549bca7cca9824650e58693ec1c74142
font_01_sfnt_off00006fc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FC6 12412 bytes
SHA-256: 46fa11ed44a934830a73eef2926ad7733fea4a561593c36db29f8631b6003747

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