Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d35548067ef2d92…

MALICIOUS

PDF

41.5 KB Created: 2020-08-23 23:52:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 93f769ac241b0ae371d0bd6901cdda96 SHA-1: 30c6a6251b647d50cc3891b7bc604366fc13816c SHA-256: 6d35548067ef2d9240e882dbbd3c5f9ebd917ea59ff47839619d059dca6c838b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains text related to a 'cabin crew cover letter format' and the malicious URL, suggesting a phishing lure for job applications. 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=cabin+crew+cover+letter+format In PDF document text
    • http://files.nurseshantania.com/uploads/1/3/0/7/130740249/faxedejakinevezid.pdfIn PDF document text
    • http://roneje.tessaviamontephotography.com/uploads/1/3/2/3/132303382/gekesi.pdfIn PDF document text
    • http://files.brightideas4u.com/uploads/1/3/0/7/130775053/1084094.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/1/0434/8729/7696/files/17644350381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0819/4722/files/auto_electrician_job_description.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9289/2061/files/26457990683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1969/7310/files/97842142390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5725/8401/files/liver_abscess_antibiotic_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2476/9436/files/84881366070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3181/2504/files/73216340977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6916/1110/files/90952212836.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8251/3570/files/blender_rotate_around_object.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2729/9478/files/36096966509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8795/4073/files/98857450672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2492/5347/files/politica_aristoteles_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/6399/2477/files/white_as_a_sheet_meaning_and_example.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 4

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_off000063b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B4 5048 bytes
SHA-256: 750f79061d2040366cd30a2d197fa5fc657557b7d9f170bc793cbd0694502eac
font_01_sfnt_off000074dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74DD 10612 bytes
SHA-256: 3babb4af045c04eef3598b7fdfc2f1811f60123caabb4d158f22a8fc054f0cdf

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