Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dfad596e86f3f97…

MALICIOUS

PDF

44.4 KB Created: 2020-08-17 10:46:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b0f54532ac4c9cd860678281ac312503 SHA-1: 09c87c4d079042b8f91850a322d66bb444609fc3 SHA-256: 2dfad596e86f3f97e24c2ef96ad6d118d457126c5b438fed1f8c3df23444ac5d
234 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1566 Phishing

The PDF contains a lure for remote support tools, instructing the user to install or connect with such software. It also features a mass external PDF link farm, with one URL pointing to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains references to the malicious URL and other PDF links, suggesting a social engineering attempt to trick the user into downloading further malicious content or granting remote access.

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=spanish+learning+books+for+beginners+pdf In PDF document text
    • http://files.theskinandlashlady.com/uploads/1/3/0/8/130814042/zapavu-xejaragox-pabigugedaze-xesefibupewot.pdfIn PDF document text
    • http://mazeru.datamakers.com/uploads/1/3/0/8/130814448/b9380f36.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/1/0428/3557/4943/files/kazuviwalaguzilelureruzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8611/9079/files/segopivixolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9722/6402/files/67167098928.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9488/2984/files/concepto_de_tanatologia_forense.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7985/0397/files/40964659465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4732/0728/files/suit_skin_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6480/0918/files/materials_selection_in_mechanical_design_ashby_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7371/5880/files/1st_year_all_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9620/2652/files/67295428763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/21282315135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/mejoretaketifejanefuma.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 5

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_off00006e5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E5C 5608 bytes
SHA-256: 68f25f3f4818514b27790d480daf587aebbff1813e85f138f72aca46565cf0bf
font_01_sfnt_off00008155.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8155 10288 bytes
SHA-256: 7970696a52b5c9de7fc38c72a0661288608931040d7fd5962873a63a080431f1

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