Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebe4a812a01206e9…

MALICIOUS

PDF

43.5 KB Created: 2020-07-31 18:12:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 49e768be9548e63b6169bdfc272e1bfe SHA-1: db497be97a1e6db8934998d730b8339b2aa4e638 SHA-256: ebe4a812a01206e94f761847f9ed97cc910e586b4b5638b03fbe9020c95e51d0
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. Additionally, PDF_SEO_LINK_FARM indicates a large number of outbound links, many hosted on cdn.shopify.com, likely to obscure the malicious destination. The primary malicious URL identified is https://ttraff.cc/pify?keyword=mirai+nikki+opening, which is likely used to redirect the user to further malicious 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=mirai+nikki+opening In PDF document text
    • http://files.shhschoirs.org/uploads/1/3/2/8/132814048/7917011.pdfIn PDF document text
    • http://files.valleyinvite.com/uploads/1/3/1/4/131407572/a729d.pdfIn PDF document text
    • http://files.morelliupholstery.com/uploads/1/3/0/7/130738988/c98432bfe7.pdfIn PDF document text
    • http://files.baycolonygardenclub.com/uploads/1/3/0/7/130775659/8382367.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/1/0429/2041/1289/files/fewenawekelararag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/77084518355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7918/8118/files/13206957066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16485275060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9928/3863/files/4548483160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3477/1610/files/92724151818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1689/5133/files/matixixojinofowiled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/31685171439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2707/8052/files/97289735070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4031/files/29703933104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9899/5864/files/228436027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6491/8165/files/57908407269.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8706/0378/files/xudiwo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006231.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6231 3316 bytes
SHA-256: baf7fd2973b26744bfa8b72101827b7309e819a9715fc5441da7325f3d8f49ac
font_01_sfnt_off00006e01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E01 4844 bytes
SHA-256: 7e98aa6feffb673e82b2ee754e6447ba1696369125b4e099b9793fe9bce76e4a
font_02_sfnt_off00007e98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E98 10028 bytes
SHA-256: eedb38a998de7d4e6c39017ce483147d8e20a865b7e86223aa9842fe866d4dcf