Malicious PDF — malware analysis report

Static analysis result for SHA-256 25e0812a7c7fc485…

MALICIOUS

PDF

44.1 KB Created: 2020-08-10 23:20:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 07d3cd1c75e8b7db93b47fdbf09d181b SHA-1: a4af08dae05ee609b68c8b9f2b9e58cf1deb6452 SHA-256: 25e0812a7c7fc485616bc040d49f0b68c2abea00cb07a05ceac169c7a82b58bd
242 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a mass external link farm, with many links pointing to Shopify domains, and one critical link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=marriage+certificate+format+pdf', suggesting a lure to download or view a document related to marriage certificates. This aligns with a payment redirection lure, a common tactic in business email compromise attacks.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=marriage+certificate+format+pdf In PDF document text
    • http://rorogeloz.southerncountrykennels.com/uploads/1/3/0/8/130814328/6594c.pdfIn PDF document text
    • http://files.southernstaraccounting.com/uploads/1/3/1/8/131871864/3998487.pdfIn PDF document text
    • http://files.thoughtfulduck.com/uploads/1/3/0/9/130969655/82d14.pdfIn PDF document text
    • http://files.catherinehedrich.com/uploads/1/3/0/7/130775304/9562005.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/1/0440/0994/7301/files/51816550677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5199/7592/files/tuwodeduvafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4434/6792/files/97506640711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7898/4614/files/fewokawozoxisexemabife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5035/2296/files/9394209009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2183/6193/files/85918914001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0087/3631/files/lajapofaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9565/4554/files/85275887230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9166/5830/files/44067717882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6437/8022/files/77565336760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0600/9255/files/bedadezezobopugetaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5053/9940/files/87403017480.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_off00006ef0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF0 5272 bytes
SHA-256: a9704cd0cf9fb5a804be8b86ca1cb865f675ec64b1ff1d088c0d6a3099dd59d8
font_01_sfnt_off000080ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80CA 10028 bytes
SHA-256: 8b9e3fcb64f46a33d9a08815ef6de96676628e04c35ce2fef375006776871962