Malicious PDF — malware analysis report

Static analysis result for SHA-256 546c790c59105822…

MALICIOUS

PDF

43.3 KB Created: 2020-08-13 23:37:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a773d57fb2b55dbae9675f53f4d6a352 SHA-1: 59e57e91b0c4577a7c1bca6884b7cbabd0747744 SHA-256: 546c790c5910582288e82f69bf347a8c66c6e75a69a7acb4f7cf9d7f7ddba46a
194 Risk Score

Malware Insights

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

The PDF file contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text suggesting a lure related to financial templates, and the PDF_SEO_LINK_FARM heuristic indicates a mass of external links. The ML_NYX_PDF_MALICIOUS classifier strongly suggests malicious intent. The primary IOC is the redirector URL, which is likely used to host or chain to the final malicious payload.

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=binomial+option+pricing+excel+template In PDF document text
    • http://files.bethanylutheranrlf.com/uploads/1/3/1/3/131381819/sizumomonogup.pdfIn PDF document text
    • http://vosunuj.michaelshusko.com/uploads/1/3/1/4/131407592/memopamotimekuxotubo.pdfIn PDF document text
    • http://files.andrasciklaw.com/uploads/1/3/0/7/130739029/tanabara.pdfIn PDF document text
    • http://files.indyofficelistings.com/uploads/1/3/0/7/130740530/ac578e8dd7e5057.pdfIn PDF document text
    • http://files.retreetecumseh.org/uploads/1/3/1/4/131483317/9290c7a7.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/1/0434/8136/6694/files/tutorial_of_ms_office_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8115/4214/files/25447989025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0088/9507/files/zijetar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8358/6974/files/muzamase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8072/1311/files/xikadumakovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3521/4503/files/b._ed_syllabus_tnteu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0493/1746/files/acca_f6_notes_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8562/5499/files/15471519523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1447/1330/files/case_in_point_reddit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3553/3218/files/rapejesenewusew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9494/1603/files/sitonesemogikiz.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_off00006a61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A61 5192 bytes
SHA-256: 7255a66afcfdcac575c7921a534aa4eeb91a362091bfa70843dae19a75980771
font_01_sfnt_off00007bee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BEE 10444 bytes
SHA-256: da84bccec3ffcf5ef1bc81c7e538abe9b241a51f9573d3a1ff899327f9392723

Open this report in the interactive analyzer, or submit your own file for analysis.