Malicious PDF — malware analysis report

Static analysis result for SHA-256 1111fc3d7d73d3f5…

MALICIOUS

PDF

40.7 KB Created: 2020-08-04 08:45:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b96b483194cbdfe222443e75af2c71cc SHA-1: 825ff957375293adba1d27ca457529e2c0b61c59 SHA-256: 1111fc3d7d73d3f5dcdeefcf6652c2f3104e9f5fb20d8be4814a88631c69ffb3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link disguised as a document title, which redirects to a malicious URL. This pattern is indicative of a phishing attempt to lure users to a compromised site. The ML classifier strongly supports the malicious nature of this PDF.

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.com/pify?keyword=br%25C3%25BCche+multiplizieren+%25C3%25BCbungen+pdf In PDF document text
    • http://files.jlwarfieldministries.com/uploads/1/3/1/8/131871786/nuriratis.pdfIn PDF document text
    • http://files.dermmedclinic.com/uploads/1/3/1/4/131437044/d092e6f31.pdfIn PDF document text
    • http://files.westtechmobile.ca/uploads/1/3/2/7/132741385/fipef_lelutifuxen_suxadipa_bovafiw.pdfIn PDF document text
    • http://files.sproutlanguagesolutions.com/uploads/1/3/0/7/130739802/wolofizowudegot.pdfIn PDF document text
    • http://jufev.mindraym5.radiologyequipmentstore.com/uploads/1/3/1/0/131070722/muxokizuzutagila.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/1/0429/6979/2668/files/11458750079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/medade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3830/8512/files/75194593439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nasidobedibugamis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9145/2314/files/detowavuvugizosiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7985/1414/files/4316047961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6850/5766/files/bemawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/94975334617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9315/5230/files/85497386661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9117/9160/files/62676514381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5338/3833/files/fefexizanibufujen.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00006fbb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6FBB 11092 bytes
SHA-256: ed1083692400ac376c6004e592d1926bb854ceb434ae638e572b784cd0a79056
font_00_sfnt_off00005d36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D36 5540 bytes
SHA-256: f23ee19169e4dd34d92740153665e0869a09dbed4911e165c0e0814428aaf0b2

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