Malicious PDF — malware analysis report

Static analysis result for SHA-256 77a27cd0162d3f35…

MALICIOUS

PDF

40.7 KB Created: 2020-09-03 12:49:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 07f24ff29f16520b4a0d32af24101cc4 SHA-1: dd5d3ee32c957dbff4a2de64c4329eb6eed807e5 SHA-256: 77a27cd0162d3f356df59b6331a35628dd3ff2cc917af5c4d56359f4fe72b8b6
222 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file contains embedded JavaScript and links to known malicious redirector infrastructure. The primary malicious link, 'https://ttraff.me/wix?keyword=chief+architect+premier+free', is designed to lure users into downloading further malicious content. The presence of embedded JavaScript and the redirection to a malicious URL indicate an attempt to exploit users through a phishing lure, likely leading to the download of a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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.me/wix?keyword=chief+architect+premier+free In 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/1/0436/4029/1486/files/70025482066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6302/4542/files/77244670246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2021/4681/files/tivule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5180/3033/files/mazorageneterego.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/f1780b_4df81db5b74247c68fa1b57edbd2d3b4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/f241d9_3c16be6476864d2d91678d05bd2abb3a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_b9a69bcc4ee8492594ddbdeac6519153.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/fd7405_7be77552bdf64a4da38589e7d222e7b6.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/31593d_e9af0733b51a4b93998291c3c5cbf67c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/866690_c627c49cf99e4aa3b7bb9509955a2fda.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/d2cc1f_b9a86536a47d4501bf278246d1c8ae9b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/10b11f_92e77e2751714cbc8ad0b51aa91841d4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e8506d_bda95196072c4a798ee61cda5647c1ce.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_off0000616f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616F 4952 bytes
SHA-256: 2b8f485f01bfffc1eb89982e35a40fb1890e3ea986893dfab19cce514f53f0ea
font_01_sfnt_off0000721c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x721C 10636 bytes
SHA-256: b8fe16b6b8c6a36e26821db9f03595bb6abbb23574356d6733aebd6c2c50d1ca

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