Malicious PDF — malware analysis report

Static analysis result for SHA-256 18b702e449f6c3f2…

MALICIOUS

PDF

66.7 KB Created: 2020-07-28 02:59:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 661108fd351a3d56a3cbaeb2d4b84cee SHA-1: 78db843791211d53cf044876a6bb9c58e395796f SHA-256: 18b702e449f6c3f2ec69813c31830b08ae8f24544af9bec6ac4bd8def2883ab5
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.cc) that is known to host malicious content. The document body, though heavily obfuscated, suggests a lure related to 'marriage biodata word format pdf free', indicating a phishing or scam attempt. The heuristic firings confirm the presence of malicious redirector links and a link farm designed to distribute further malicious PDFs.

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.cc/pify?keyword=marriage+biodata+word+format+pdf+free In PDF document text
    • http://files.feastbythebay.org/uploads/1/3/1/3/131380087/119255.pdfIn PDF document text
    • http://files.yamilkanoa.com/uploads/1/3/1/6/131636726/rovapudefuzafiv_sowefas_wejus.pdfIn PDF document text
    • http://files.fuschiamoss.com/uploads/1/3/1/4/131408970/2296935.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/1/0428/7502/7619/files/kuwatovagonirozufefavaroz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/mimadarofam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5479/1832/files/63348434740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/fovirofudixame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/13995330221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1570/8573/files/muvisetamop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6816/1176/files/83797578575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2372/7783/files/woxavikesurulaluvofozetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1761/6034/files/vikasapuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2865/9874/files/41661504659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9316/4199/files/suzojuruvizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0880/2466/files/62597899628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2226/2178/files/savipij.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 4

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_off0000bfc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFC7 5072 bytes
SHA-256: 8e58c3c745fc74e1bd7131c225446ec2eca4a8a09c9eb1a5685a9ea6ac2557da
font_01_sfnt_off0000d11c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD11C 14444 bytes
SHA-256: e50b69602488c02123deeb3cb866c23e59cab9b57b00a1238d4939fa49aec615

Open this report in the interactive analyzer, or submit your own file for analysis.