Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b54e7252a161001…

MALICIOUS

PDF

41.5 KB Created: 2020-07-31 22:54:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 03727d5464c18f74ef74f8bed2084b79 SHA-1: 34bc18cbf15496019152b4da28096c6aae8e1898 SHA-256: 4b54e7252a161001a6e0632afe0b77d5ebc5baa59b8c862b5026e18573801ae8
294 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1059.003 Windows Command Shell

The PDF contains a lure that instructs the user to copy or paste clipboard content into a shell context, combined with a request for recovery secrets or private keys. This suggests an attempt to trick the user into revealing sensitive information. The document also contains a high number of embedded links, with one pointing to a known malicious redirector infrastructure at https://ttraff.com/pify?keyword=osx+generate+ssh+key.

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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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.com/pify?keyword=osx+generate+ssh+key In PDF document text
    • http://files.mfautodetail.com/uploads/1/3/2/7/132740618/mudit.pdfIn PDF document text
    • http://files.pmeadistrict10.org/uploads/1/3/0/7/130739517/renoxoxugisumu.pdfIn PDF document text
    • http://files.tyrmalinoisaustralia.com/uploads/1/3/1/6/131636972/178813.pdfIn PDF document text
    • http://files.nuimagedesigns.com/uploads/1/3/1/3/131398475/finova_jititafos_sifegusazutiv.pdfIn PDF document text
    • http://files.alpinedesignsmt.com/uploads/1/3/0/7/130776368/dogipasero-wawusumi.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/1/0432/1063/7475/files/domopiditip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8186/7176/files/molikota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7437/9158/files/49539871504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/78409882294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7958/1352/files/ruwewolivixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6224/8095/files/xuxiratawebotowaxekukizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6379/5094/files/155864449.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9647/3749/files/muraguvoxesetunasorilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4242/1398/files/9153298340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1641/files/tamexaxofipivefer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30151397197.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ddf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DDF 5176 bytes
SHA-256: 3e6fe0cdb6b41a1cfb5655197db460d31224fcd90bbe26845c9ef1b7d67c190f
font_01_sfnt_off00006f7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F7B 12872 bytes
SHA-256: f9d8d14c141ec3b1222dca3e65b9436afc7e52df02c7c00ffb283f7ac91c00b9