Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfd8f0faf864f790…

MALICIOUS

PDF

45.4 KB Created: 2020-08-21 23:56:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0b0e6ad1f443019a0edbb3c5c7b6cc96 SHA-1: 5f94f43cc0ac9032324a0ab1ad69edd069c7883e SHA-256: dfd8f0faf864f790187c7499e90c1fcabb289723baf32cc4eb0022021ff9068c
194 Risk Score

Malware Insights

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

The PDF contains a prominent link that redirects to a known malicious URL, indicating a phishing or redirection attempt. The document body, though obfuscated, contains the target URL, reinforcing the malicious intent. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm designed to obscure the ultimate destination or to appear as legitimate content.

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=business+report+sample+hsc In PDF document text
    • http://files.sweetart.online/uploads/1/3/2/6/132696483/kolaj.pdfIn PDF document text
    • http://files.helpfromtheuniverse.com/uploads/1/3/1/4/131437531/f63e24ef51.pdfIn PDF document text
    • http://files.artistsalive.org/uploads/1/3/0/8/130874046/nagufekuxi.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/1/0427/9504/0924/files/political_theology_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4092/3048/files/buku_akuntansi_sektor_publik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1324/8923/files/jimanonemabetoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4026/8711/files/85256847588.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/form_944_mailing_address.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1784/4382/files/vamadojamesevas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4798/4027/files/scales_and_arpeggios_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nuruge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6679/9766/files/99681402734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6495/0946/files/pegafuzunetuvux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4434/7799/files/berutedopugavogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5523/2677/files/badminton_court_measurement_in_feet.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_off000073c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73C2 5224 bytes
SHA-256: 00451dfcbc53dab2d3cdcf45f85bc83e849c11e2013403cb659c1c4e77b68b7d
font_01_sfnt_off00008548.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8548 10440 bytes
SHA-256: 87b0d5c084d6ca5ae10d0f5fea3d21ce95fa9c1ea6c6fec1bf4dfcbbff9edd5c

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