Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d5ceb11164ec81e…

MALICIOUS

PDF

48.6 KB Created: 2020-08-02 05:23:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3ed2253ec71197966752b4a80aee8f6a SHA-1: 77f993106b540410eed919fa1a7e7385632e018e SHA-256: 7d5ceb11164ec81eecd6dfa72c8a1f7a64c380c7105d92fb8ecb49ab7a8af137
294 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File T1059.007 JavaScript T1140 Deobfuscate/Decode Files or Information T1071.001 Web Protocols

The PDF contains numerous links to external PDF files, many of which are hosted on Shopify and appear to be part of an SEO link farm. One primary URL, https://ttraff.ru/pify?keyword=your+dns+server+might+be+unavailable, is identified as a malicious redirector. The document also contains lures instructing the user to enable content and disable security software, indicating an intent to bypass security measures and likely download a second-stage payload. No scripts were extracted, but the embedded URLs and social engineering lures strongly suggest a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 8

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • 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=your+dns+server+might+be+unavailable In PDF document text
    • http://files.jmpzclothingapparel.com/uploads/1/3/2/3/132303035/mopupusuzigal.pdfIn PDF document text
    • http://files.offthegrid24.com/uploads/1/3/0/7/130738988/kivunezalun_genusej_fegevev.pdfIn PDF document text
    • http://files.yassvalleyk9.com/uploads/1/3/1/3/131380848/tuxidej-kokufejujibage.pdfIn PDF document text
    • http://files.cmebenezer.com/uploads/1/3/1/1/131163851/7326266.pdfIn PDF document text
    • http://files.parallaxphotographyrs.com/uploads/1/3/1/4/131409463/c13da6482872.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/1/0432/8184/2341/files/jidaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/benubojebexoreloruva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/80591648311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2666/files/9670687413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0417/4246/files/mefenabujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1701/7256/files/salukaguwajup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4391/2856/files/44963895513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5872/5018/files/tojakefijadofofapudeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/leatherworking_leveling_guide_ffxiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6747/4087/files/xedaxenavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/suxabunosafudovoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/22271122494.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_off00007fa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FA9 5400 bytes
SHA-256: 87f6a2b7042935cafdbbbc12d36cf5a167700238fffb6b683caea680a82b9fb7
font_01_sfnt_off000091e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91E0 10348 bytes
SHA-256: cd470e3d0ec460c71e95b5f5882e52a978d5e24ad1fd9d5d7211d3c808c47763

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