Malicious PDF — malware analysis report

Static analysis result for SHA-256 01c704fb97bbd36b…

MALICIOUS

PDF

48.7 KB Created: 2020-08-01 01:01:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1f9ebaa0f580a52bc9e9a28ebed1f7c8 SHA-1: c3ad251c175285ff268a2db0797c25e2ea6d63e0 SHA-256: 01c704fb97bbd36b7e24342632017314094212f587577fcec7112328d0507c58
194 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body, though heavily obfuscated, contains references to a 'Linux commands cheat sheet' and the malicious URL, suggesting a lure to trick users into downloading further malicious content. The ML classifier strongly indicates maliciousness, and the presence of redirector links confirms a malicious intent to lead users to harmful sites.

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/pify?keyword=linux+commands+cheat+sheet+2017+pdf In PDF document text
    • http://files.nationalhorselovers.com/uploads/1/3/0/7/130776682/0d9b220.pdfIn PDF document text
    • http://files.authorshirts.com/uploads/1/3/1/3/131378852/gasumepotuju.pdfIn PDF document text
    • http://files.indigobodymassage.com/uploads/1/3/1/3/131398099/5b8b57e.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/1/0432/2174/5823/files/90322190329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7335/3366/files/itextsharp_c_getting_the_comment_from.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9745/6789/files/25970714260.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9798/1089/files/60974081167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8039/1585/files/23493728669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1335/7214/files/87480639786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5429/3402/files/4699599230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8489/7701/files/22242061583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7404/4579/files/77280630613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0190/3264/files/13585706850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6729/files/53493235409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5411/2672/files/lubiribokoviwoturebakuli.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
🗂 Part of campaign: authorshirts.com 3 samples

Related samples 3

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_off00007452.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7452 5680 bytes
SHA-256: 86e0631c5f18ccc220b2882fa44399ee1a8f3aabebecd3fbfa5a72fbcb557294
font_01_sfnt_off00008798.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8798 14596 bytes
SHA-256: 1a82e28307071fab8e4776e35c4163acca39730e8d7299bf75f383101dd841cb

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