Malicious PDF — malware analysis report

Static analysis result for SHA-256 23ed9b76d8079451…

MALICIOUS

PDF

51.5 KB Created: 2020-08-09 23:28:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 172374c677ae1e3f4a6fdf1b7846603a SHA-1: 45460028d830e67b0f17eb2fca1a46fb31c7cb4c SHA-256: 23ed9b76d8079451c0747e9e66e9d74e2768ccfe899a17a3e026497d0192b925
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic indicating it's a malicious redirector link, pointing to 'ttraff.com'. It also exhibits characteristics of a PDF link farm, with numerous external links, one of which is to 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the same malicious URL. The presence of a remote support lure suggests a social engineering tactic to gain further access or control.

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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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=baixar+pdf+para+celular+android In PDF document text
    • http://files.sydneyinsightmeditators.org/uploads/1/3/1/3/131398095/zolesifufurezevijuz.pdfIn PDF document text
    • http://files.thelittlethingsilove.com/uploads/1/3/2/6/132681749/nexebozekex_gesuvabav_ramor.pdfIn PDF document text
    • http://files.wfyouth.org/uploads/1/3/1/6/131607063/35f412c1e559c67.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/1/0435/0250/2054/files/examples_of_systematic_risk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1917/9944/files/canara_bank_account_statement_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61259485886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8163/7794/files/english_consonants_and_vowels.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2149/1621/files/mofowatofofada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5750/4668/files/tabavabaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2071/4137/files/nachalo_book_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/xevusenukasolipejowarep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/88490504102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2421/9293/files/kobawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6656/4507/files/bodujefaxotoponibamoman.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_off00008c5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C5A 5088 bytes
SHA-256: 28aa96a3834039ae44fcb36d1bfe81365267dbf84227aa221af21f678ac63996
font_01_sfnt_off00009dc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DC1 10460 bytes
SHA-256: 4f57feee9c829c31beba642f27dbfbc9c61fa334c297f03a9b57a364807dcfd6

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