Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6d3e68f0a71a9ef…

MALICIOUS

PDF

46.6 KB Created: 2020-08-22 09:19:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 78c75057c9d78e1aecb423a13b6bc3a3 SHA-1: 0987557a2d53390d718b04089104fedb1817c9e5 SHA-256: f6d3e68f0a71a9ef0dd6345318eeb24f3f375b708273e08d1ea23329bcd60c8c
274 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body and heuristics suggest a lure for MFA or password recovery, likely to harvest credentials. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to improve search engine ranking for malicious content. No scripts were extracted from this sample.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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
  • 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=yahoo+email+recovery+form In PDF document text
    • http://files.childsafechildproofing.com/uploads/1/3/0/7/130775822/tijekofa_gesede.pdfIn PDF document text
    • http://files.greataytonlodge.co.uk/uploads/1/3/1/8/131871424/9730639.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0024/0024/files/63808331947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4073/5381/files/20712117655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9704/6696/files/pupabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0372/4455/files/gekitiwalemizukewoveni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/9296/3484/files/hattiesburg_ms_accident_reports.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/polumaripivagovew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8315/3056/files/trigonometric_graph_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7651/8049/files/89456540417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7794/1913/files/ctet_2019_question_paper.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 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006cad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CAD 4668 bytes
SHA-256: bf6413a305b566292741113f3b814db49cd516602ae16be60229f8aa42a54794
font_01_sfnt_off00007c90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C90 10292 bytes
SHA-256: 91a3aa948fa491eedef78402cf629513381c48bb21ed04f3f347b0b42dfbf6c4
font_02_sfnt_off00009fc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FC4 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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