Malicious PDF — malware analysis report

Static analysis result for SHA-256 0549fe2ecc7a1067…

MALICIOUS

PDF

41.3 KB Created: 2020-08-07 02:26:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 35d3250c10451204b7b424ccefcbb48e SHA-1: 355f3da381e1c675155d8abca513120a307163b7 SHA-256: 0549fe2ecc7a106739fe3c9f0dc6f0e6fbf3186800aed288987f4a7b1a55dc03
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic identifying a redirector link to 'ttraff.cc' which is associated with malicious activity. Another heuristic indicates a link farm of 30 external PDF links, suggesting an attempt to manipulate search engine results or distribute content. The ML classifier strongly supports the malicious nature of this PDF.

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=refugee+alan+gratz+pdf+download In PDF document text
    • http://files.devizestaxis.co.uk/uploads/1/3/0/9/130969469/9009082.pdfIn PDF document text
    • http://files.yourpanamatours.com/uploads/1/3/1/4/131412032/6386831c5f8492.pdfIn PDF document text
    • http://files.y4kc.org/uploads/1/3/2/7/132740804/muginil.pdfIn PDF document text
    • http://tuzojeli.assurancedepot.net/uploads/1/3/0/8/130874422/e10841d26c.pdfIn PDF document text
    • http://bupemoke.mwpto.org/uploads/1/3/0/7/130776433/996947.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/1/0433/0687/7080/files/64238793182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3901/2502/files/mosidusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9765/7248/files/ffmpeg_convert_mp4_to_mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0845/7877/files/75784020047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2801/3471/files/orthographic_projection_in_autocad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9422/6584/files/noduzowalasimidid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0972/7912/files/subset_dataframe_in_r.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2259/7800/files/maxemefebegisatujanudiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9001/7430/files/54946969023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8634/7430/files/best_ereader_for.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4946/0636/files/dujuronakabisifuvetaporu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4317/7126/files/33898910347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8125/2507/files/22179149649.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 8

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_off00006153.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6153 5180 bytes
SHA-256: 9fdcbf2ab198372706d121efdea3fb2039b651b3762fa977dd46934ec79f256f
font_01_sfnt_off0000732a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x732A 10552 bytes
SHA-256: 827e9288495e5de7e82e938ae39a5435d7419f05ebcb6c35ada28c7a8df91864

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