Malicious PDF — malware analysis report

Static analysis result for SHA-256 11e68a72e587d1ad…

MALICIOUS

PDF

45.1 KB Created: 2020-08-23 12:48:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c418e13032f8ff39ef80dcb523dd0b40 SHA-1: e2a69f7ccd2f4d6cd1a6b00ee28301094e6459d0 SHA-256: 11e68a72e587d1adba481539e322a61d93b135f7c3af5edc283ff8674d8d076e
214 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a redirector link to 'ttraff.ru'. This URL is part of a link farm designed to lure users with SEO-optimized content, impersonating cloud document sharing services. The ML classifier strongly indicates maliciousness, and the overall pattern suggests a phishing attempt to redirect users to malicious infrastructure.

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.
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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=top+5+productivity+apps+for+android In PDF document text
    • http://maruleb.ultraxenon.co.uk/uploads/1/3/1/4/131452958/2943282.pdfIn PDF document text
    • http://files.okmfg.com/uploads/1/3/1/1/131163747/4070118.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7764/5989/files/85058686255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3519/7602/files/channel_3_weather_cleveland.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7098/8188/files/gavoduvekelabidufegolateg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0971/2023/files/dujime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4333/2000/files/88254629675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7573/9553/files/66330445591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7007/0687/files/jolifobuzijedozutujafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6294/2101/files/tarosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5359/4277/files/89138505124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/75977767507.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 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006554.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6554 5116 bytes
SHA-256: 3823808e0b71f710bde2e5b384bf510f1e7843cfd5041b73702585ea6daf1b79
font_01_sfnt_off000076cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76CC 10128 bytes
SHA-256: db28d4881c273b4ec913d74b52c95acf61dbcb3db0bedff49b9c3acde5372eec
font_02_sfnt_off00009987.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9987 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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