Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3d9bee297f27783…

MALICIOUS

PDF

42.2 KB Created: 2020-09-18 16:45:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 07bce9267e46d0cd979c4d01bd0731bb SHA-1: 62512795f78c5b3529a731781ea8c02106581d43 SHA-256: e3d9bee297f2778399c95d30e5e4545b4afeb5e53d7d83da91ce60187a3554ce
194 Risk Score

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.link/pify?keyword=silver+creek+elementary+school+calendar In PDF document text
    • http://files.tbsadalumassoc.com/uploads/1/3/2/6/132695643/22f8ef18.pdfIn PDF document text
    • http://files.ranchodorado.com/uploads/1/3/1/4/131406506/mevukorasegake-pomemadasewen-sugipagidukaji.pdfIn PDF document text
    • http://files.theportlandtowingcompany.com/uploads/1/3/2/3/132303353/fajor_gojerogitid.pdfIn PDF document text
    • http://files.stevenmmillerphotography.com/uploads/1/3/1/6/131637419/kujokidojifu_ketelup_kapovil.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://1b1a7842-609b-4dfd-9dd7-3e449c254d53.filesusr.com/ugd/e49726_e73f5384466a4dfbbee0e94ebb2aaac2.pdf?index=trueIn PDF document text
    • https://9265f775-d7f9-444a-bda6-b72767c8d046.filesusr.com/ugd/ee4a13_769e9fdfee6a40318e123367b5ae6d3b.pdf?index=trueIn PDF document text
    • https://c589ad9d-0cb9-4a01-802c-c0c5b8c3b930.filesusr.com/ugd/cc1a03_7684f0fc916d49058ce13ee7970bbb44.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7803/3313/files/38199347059.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4349/5841/files/salezamunizaput.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0119/2352/files/61471936891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/1658/5120/files/wokepumukabozugat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7723/7913/files/xekejiridibanegof.pdfIn PDF document text
    • https://011a2ca8-9afe-445b-9277-a00759f3a9c6.filesusr.com/ugd/681527_7b79f4feff914790aae238f10a650ba9.pdf?index=trueIn PDF document text
    • https://cd3815c9-c955-4325-9f29-0179286504db.filesusr.com/ugd/4cf28d_054cceb1575947b1ace808e3ab0dc888.pdf?index=trueIn PDF document text
    • https://bc8124b5-1a05-4189-98e9-41d5f0acc416.filesusr.com/ugd/278743_caa90b4f6bbb4f69b9012073a0c4a700.pdf?index=trueIn 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
font_00_sfnt_off0000657b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x657B 5508 bytes
SHA-256: 519bc7c2e5433eaa2b4683726531e54e8308afc0851528d03d6a773a935e9b53
font_01_sfnt_off00007816.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7816 10288 bytes
SHA-256: fd1d7299ccaf432c131fbf7e63a378189349185990dbaa50797540e06a8765bf

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