Malicious PDF — malware analysis report

Static analysis result for SHA-256 563c851d249f752a…

MALICIOUS

PDF

42.4 KB Created: 2020-08-01 06:18:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 471a2bec010555826a0fb62083540d1e SHA-1: d1b8686f0f59085a0106be3170b1aca90807e340 SHA-256: 563c851d249f752a65626381942879efada50ee20d8771958963f7b845a0d692
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=session+horns+pro+manual'. Additionally, it exhibits a PDF link farm behavior, embedding numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing the malicious intent. The primary goal appears to be redirecting users to malicious infrastructure, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.ru/pify?keyword=session+horns+pro+manual In PDF document text
    • http://files.redleaf-properties.com/uploads/1/3/1/1/131164159/b7227a0f6ed.pdfIn PDF document text
    • http://files.rrproductions.shop/uploads/1/3/1/4/131453215/7145080.pdfIn PDF document text
    • http://files.faunafloraterra.com/uploads/1/3/0/8/130813524/xomajasax_gaxuraviw_notixomajep.pdfIn PDF document text
    • http://files.buildvaluehere.com/uploads/1/3/1/4/131438068/pukug.pdfIn PDF document text
    • http://files.maelasesthetics.com/uploads/1/3/1/4/131483184/dekaguzuz.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/1/0438/1615/7344/files/23758440657.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61411835552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5719/1843/files/vobofomesonikamufakug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2619/4333/files/bavudomur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/matepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4741/1096/files/6435800640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2133/4688/files/janemunebaguve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gabagijujusudizal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5837/1496/files/nazarowodowerixopofew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4029/1486/files/zodoxesilepotobusozuzage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3449/9489/files/18735421138.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006634.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6634 5160 bytes
SHA-256: f24a624646c8332dbeea81ad4de527f8968700c0d0b9ea6720959a89c6a18d9a
font_01_sfnt_off0000778d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x778D 10952 bytes
SHA-256: 8b548163d3e9aca84a68bf0060e656630e6cf054569c0c518c9c7f20d3951f06