Malicious PDF — malware analysis report

Static analysis result for SHA-256 07d0c3c0a5ad3d85…

MALICIOUS

PDF

39.2 KB Created: 2020-07-24 18:03:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-04
MD5: 7a689e8256d09171cad0625c6b4503e8 SHA-1: 9c311e27cd431b41bee87fdd53822520a248477a SHA-256: 07d0c3c0a5ad3d85f82f337c770d29a9ab1513fb95f783baf7fd73fb5dda1a0a
194 Risk Score

Malware Insights

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

The PDF contains a link farm with 18 external PDF links, many pointing to SEO-optimized URLs. One prominent link, 'https://ttraff.com/wb?keyword=frigidaire%20dishwasher%20model%20fghd2465nf1a%20manual', is identified as a malicious redirector. This suggests the document is designed to funnel users to malicious infrastructure, likely for phishing or to download 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/wb?keyword=frigidaire%20dishwasher%20model%20fghd2465nf1a%20manual In PDF document text
    • http://files.somax-consulting.com/uploads/1/3/1/4/131438442/b55e6ecd98.pdfIn PDF document text
    • http://files.bealrightchicago.com/uploads/1/3/2/8/132814473/3706698.pdfIn PDF document text
    • http://files.ilovemytemple.com/uploads/1/3/0/8/130874231/tokaxusifukasix_xusifefojuf.pdfIn PDF document text
    • http://files.kyleedavid.com/uploads/1/3/1/4/131453733/nuwizukibor-banaloxur-wufanojoxe-fazelox.pdfIn PDF document text
    • http://files.thaivision.com/uploads/1/3/0/9/130969847/wutata-riguru-lewamomizasus-susobazoji.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/1/0430/3188/8021/files/17857095529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2505/5389/files/majarawuderunewegemudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3663/1452/files/12321363315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4085/7494/files/48397608031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0692/4712/files/dotako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57790570823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6758/0322/files/80365879521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4950/8246/files/54873859854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vinufew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8747/0496/files/39444825019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7373/2768/files/mirediwalipuzexetimoxipog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3028/1381/files/30045388812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2435/8308/files/nugoxikidewekug.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
font_00_sfnt_off00005b08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B08 5720 bytes
SHA-256: 3a5f00f7620fd1d6948717a5fd268a230fc71ad7eec5affaf4ddc95c388b9441
font_01_sfnt_off00006e73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E73 9608 bytes
SHA-256: d03e4ee17e6495ced3700978abeed7bbb680007dfbc5d03c734311308e58796e

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