Malicious PDF — malware analysis report

Static analysis result for SHA-256 d66286cb0d7ae03b…

MALICIOUS

PDF

69.4 KB Created: 2020-07-30 09:39:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 84d257609b772d4583a53695a4886ac1 SHA-1: 2e1a06157d0177a579acf80273129b7ce6a35d79 SHA-256: d66286cb0d7ae03b4b8882d9aa8361c36bdeb188342be6b142236d55dc049fa9
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one pointing to a known malicious redirector. The heuristic firings indicate that the PDF is acting as a link farm, directing users to external resources. The document body, though heavily obfuscated, suggests a lure related to 'risk management pdf journal'. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

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=risk+management+pdf+journal In PDF document text
    • http://files.linebergersfarm.com/uploads/1/3/1/4/131483372/sidotutogiwibam.pdfIn PDF document text
    • http://files.mjkyarchitects.com/uploads/1/3/0/8/130874238/3327863.pdfIn PDF document text
    • http://files.thegoodfeelinglife.com/uploads/1/3/0/7/130776099/vefavaf.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/1/0437/2388/2664/files/40885020063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7036/5602/files/69584155185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/juganixunokomoponimebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5414/5444/files/bowukojelebarileresifafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/lajuwurut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/muzoguganava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1972/2152/files/dagixutotanowufin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90685913575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6152/6166/files/dezukufozofejixuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5511/9512/files/wubisoleketuwezed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5819/1768/files/65421336165.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: narrinspiceandsauce.com 8 samples

Related samples 5

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_off0000d2c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2C1 5392 bytes
SHA-256: 071712aa7ce5e8bfe18b2058b866463106fa0cbf7f60530f7dd7e7708c9d0642
font_01_sfnt_off0000e506.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE506 10416 bytes
SHA-256: 6ea8ca02b879ab84a3b329f3131b178f54174fe0f29ccc5f5c84c4ae86bc23f9

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