Malicious PDF — malware analysis report

Static analysis result for SHA-256 c78167f67634213b…

MALICIOUS

PDF

41.0 KB Created: 2020-08-01 21:22:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 83d15d444e437d8eb481688dfeacfa38 SHA-1: ddbe0c970300bc9dd6922bc79e69bdbb25e2556f SHA-256: c78167f67634213ba24b8b26a9dc8984ac3dcfcd2e1e00df9dddf5e5bc472736
234 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm for SEO poisoning. One prominent link, 'https://ttraff.ru/pify?keyword=clean+install+high+sierra+apfs', is flagged as a malicious redirector. The document body also contains text that appears to be a lure for users to click on links related to software installation, and a heuristic indicates the document instructs users to copy/paste clipboard content into a shell, further supporting a malicious intent to redirect users to harmful sites.

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.
  • 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
  • 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=clean+install+high+sierra+apfs In PDF document text
    • http://files.tsipimani.com/uploads/1/3/1/1/131163736/8896440.pdfIn PDF document text
    • http://files.portanglers.com/uploads/1/3/1/8/131871614/2432346.pdfIn PDF document text
    • http://files.yogamuseinc.com/uploads/1/3/1/4/131438203/7aabeadaabc5.pdfIn PDF document text
    • http://files.oheadhra-mackenzie.com/uploads/1/3/0/7/130776254/981dd610e57.pdfIn PDF document text
    • http://files.kimberlifreilinger.com/uploads/1/3/2/3/132303320/9141780.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/1/0430/1471/7597/files/visatomotefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7508/4193/files/nedil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6078/1465/files/63531820146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6068/1109/files/10282048991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/45469718763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8266/8437/files/13964440216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9571/0113/files/janizixoked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2441/6931/files/jaridi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31240515614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4945/0661/files/29690570240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/gakurewukifuru.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_off00006314.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6314 5068 bytes
SHA-256: 14b474a4966c55c9718e7540906574f94c317a8c69871909295a7de13f936f6c
font_01_sfnt_off0000744d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x744D 10156 bytes
SHA-256: 9013b6c333c69de02b0d47135c44a62fac21f060134fc229d0fd8f358691e001

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