Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d33ebf49b06053a…

MALICIOUS

PDF

44.0 KB Created: 2020-08-18 23:54:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b679944c963cdba4904af4fd72042205 SHA-1: f3592b385383219585fdaec9b34e527bab2564a3 SHA-256: 9d33ebf49b06053adffafa7f0d0c55916ac731f873948dc84b4331d95bbbaac6
194 Risk Score

Malware Insights

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

This PDF document contains a link farm designed to redirect users to malicious infrastructure. The primary malicious URL is https://ttraff.cc/pify?keyword=bt+megastream+fault+reporting, which is likely used to deliver a secondary payload. The document's content and structure strongly suggest a phishing or social engineering attempt to trick the user into clicking the malicious link.

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=bt+megastream+fault+reporting In PDF document text
    • http://files.drchristinebacon.com/uploads/1/3/1/4/131453325/motoguguluvi.pdfIn PDF document text
    • http://files.catandthemoon.com/uploads/1/3/0/8/130874672/04a832b447dfd7.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/1/0429/0658/3203/files/ligiwamiwezipole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7260/1756/files/popej.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/1/0434/1124/3162/files/physical_examination_and_health_assessment_7th_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5206/3125/files/anthropological_theories_upsc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8160/5018/files/fevazivemorimezomoxumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8799/5814/files/72476484203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/argumento_ontologico.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 1

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_off00006ecf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ECF 5272 bytes
SHA-256: 4de660a3768a379092563d8a8b3265b98d896c02846e9d684297ca2e581b3903
font_01_sfnt_off000080a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80A5 10272 bytes
SHA-256: e5514da36704a87fe7a7a6f9d206165a503dd4b5af2b6b9cca339951f1f4ab79

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