Malicious PDF — malware analysis report

Static analysis result for SHA-256 700cd56ce52f596f…

MALICIOUS

PDF

53.2 KB Created: 2020-08-25 01:50:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e920f236b981eac611022abc643c88de SHA-1: 45cdb6bba785f5d712f96508ee8882839039738c SHA-256: 700cd56ce52f596f76e2053d6d3af365a789af2b547e448c4ad5d5c640539759
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external resources, many of which point to a redirector service identified as malicious. The document body, though heavily obfuscated, contains the string 'https://ttraff.com/pify?keyword=cheetah+facts+and+information', which is also flagged by heuristics as a malicious redirector. This suggests the document is designed to lead users to malicious infrastructure, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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=cheetah+facts+and+information In PDF document text
    • http://files.nairegion2.org/uploads/1/3/0/8/130814280/cdafd.pdfIn PDF document text
    • http://gezojuma.danieleantoniella.com/uploads/1/3/0/7/130776106/f4ef653989d60.pdfIn PDF document text
    • http://files.golfdrivingrangewiltshire.co.uk/uploads/1/3/0/8/130813546/7042408.pdfIn PDF document text
    • http://genejiw.eastcarolinaramtrucks.com/uploads/1/3/2/6/132681670/fuvefabubejosi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2011/4325/files/mapibatitomeliwokusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9252/4702/files/89860094208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3663/8369/files/bmw_x1_2010_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3778/4224/files/second_law_of_thermodynamics_lecture_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8945/9368/files/vivivulekatoxorerabiko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7943/3382/files/hernia_discal_tratamiento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1756/0473/files/kedorakopupozumede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0335/5034/files/afrisam_bursary_2020_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3728/6812/files/wow_encrusted_coin_vendor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5669/3397/files/saxakowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4329/9228/files/81315782057.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008425.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8425 5040 bytes
SHA-256: 22c375263f9259075d1577e69599d6aebda29c95a941bf4b7e16af1738b1bd4e
font_01_sfnt_off00009518.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9518 10200 bytes
SHA-256: 4b32a15af2d05bb1fb0b405d5358b6cd21a6e4d0759fb63194fddae01c2bd928
font_02_sfnt_off0000b7f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7F6 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c