Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fc9de7059685b01…

MALICIOUS

PDF

42.2 KB Created: 2020-08-14 19:17:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cf07c2597753916bd489fd22b21a55df SHA-1: 696bb2a0b88fafaedee2bc75e0e9380ced450786 SHA-256: 8fc9de7059685b0118b7b77e7fc0acd0b88c4b80e6fcb6793dc0de1182c31f01
274 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains multiple embedded links, with a primary redirector URL pointing to a known malicious infrastructure. The document also exhibits characteristics of an MFA or remote support lure, suggesting an attempt to harvest credentials or gain unauthorized access. The presence of numerous PDF links, many pointing to benign Shopify domains, indicates a potential SEO link farm strategy to obscure the malicious redirector.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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=splashtop+streamer+android+apk In PDF document text
    • http://xapadag.tricountyliteracycouncilnj.org/uploads/1/3/0/7/130776757/83d822321f8a6.pdfIn PDF document text
    • http://wotekis.ao-americas.com/uploads/1/3/1/6/131637136/xibugopon.pdfIn PDF document text
    • http://files.erikabrincat.com/uploads/1/3/1/3/131383743/fijotibixi.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/1/0430/6970/2306/files/wududevifanemenex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3648/2458/files/49408451001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1478/2103/files/paladomudes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/dufasupikodokibofijibunew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0500/8293/files/descargar_libro_after_2_espaol_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9356/5342/files/49376560498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2745/5382/files/56031117912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7515/7670/files/82614996669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6858/8194/files/93775778442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9095/9766/files/botw_windblight_ganon.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 2

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_off0000606d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x606D 5364 bytes
SHA-256: 0616e78cb12bff1691621aa5fc8206e6819b3a91c4b631559ac9136947c71f3b
font_01_sfnt_off0000727b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x727B 12876 bytes
SHA-256: d24d278f6cf26900236e007d3e3635f7343b4dc5fa09ae20172bc33c71fc3bd0

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