Malicious PDF — malware analysis report

Static analysis result for SHA-256 04ef04f232d701a0…

MALICIOUS

PDF

44.0 KB Created: 2020-08-15 01:56:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bbbf8dc78ffb94cddf3421b7337efc4b SHA-1: c9b306970f9986a854e0b32719fc61b1455c6efc SHA-256: 04ef04f232d701a0f3c107ff053d307c4621944f3a9e062386edba7a0c772843
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm, with a critical finding of a link to known malicious redirector infrastructure. The document body includes a call-to-action phrase and the malicious URL, suggesting an attempt to trick users into downloading further content. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=java+code+to++file+from+sharepoint In PDF document text
    • http://zowotab.mainehypnotistsngh.com/uploads/1/3/0/7/130738714/81533c779a59522.pdfIn PDF document text
    • http://files.sthilaryhouse.co.uk/uploads/1/3/1/6/131636889/mubumaribiminatores.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/1/0433/8896/0919/files/wokuverenos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2658/6527/files/79098044789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4841/8973/files/caesars_rewards_mobile_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/8138/8452/files/identity_malta_position_description_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9729/2949/files/nupoxenezogobejixafizofa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1653/3654/files/mukhyamantri_awas_yojana_up_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9805/4558/files/9564449428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1940/2397/files/koxivubozumibugumudabuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8872/4639/files/perirofitobokuratib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3169/1421/files/benefits_of_franchising.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1625/5650/files/65761065032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6843/2288/files/derpy_minecraft_skin.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
🗂 Part of campaign: inspiring-senses.com 3 samples

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_off00006335.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6335 5444 bytes
SHA-256: 139f0e32d3e4f1bd84d33cbef49d4efd9d97e5ac930c8d63eb49af10189a23f1
font_01_sfnt_off0000758f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x758F 14636 bytes
SHA-256: f3566d74453c9379a1ba4543724a622d3a4b3c99ddcb1b9f713c7af5b811fc66

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