Malicious PDF — malware analysis report

Static analysis result for SHA-256 47a168db4245f2bf…

MALICIOUS

PDF

42.2 KB Created: 2020-08-20 05:52:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c5ea1d78be2a45ffce08ede7b2fa152 SHA-1: 43389538d2e62ea61a29f04ec857a85b277d4c1f SHA-256: 47a168db4245f2bff582e3810e347b18b7d63699eb03fce91292686bd2bcfb84
234 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one pointing to a known malicious redirector (ttraff.com). The document body, though partially garbled, suggests a lure related to a 'Kerry consulting salary guide'. The presence of a link farm heuristic indicates an attempt to distribute content or traffic, likely for malicious purposes. The primary malicious IOC is the redirector URL, which is used to obscure the final destination.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=kerry+consulting+salary+guide In PDF document text
    • http://files.613u.com/uploads/1/3/1/4/131453399/jiwum-vedenaw-kewagavepogos-kigupugusaw.pdfIn PDF document text
    • http://files.premierbeachpropertymanagement.com/uploads/1/3/2/6/132683165/d0fa61b31b.pdfIn PDF document text
    • http://komuxuw.skellysongs.com/uploads/1/3/1/4/131453598/dewojaf.pdfIn PDF document text
    • http://butozozu.soulhealthservices.com.au/uploads/1/3/1/8/131856907/sexujevirudazarojeva.pdfIn PDF document text
    • http://zogezeju.agileinspection.com/uploads/1/3/1/4/131437987/pemabafok_sabokikatinudur.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/1/0450/3266/9334/files/flat_belly_diet_recipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/1545/8215/files/44152277139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4950/8246/files/lamomarulojazixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3223/9528/files/catalizadores_biologicos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/5303/6199/files/15756928907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mefawubizujoki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8398/7096/files/tetej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5680/2461/files/attestation_de_stage_maroc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pijajaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gevuruliwineda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9830/0823/files/17704486007.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_off000059fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59FD 5180 bytes
SHA-256: 99c7e7c2c8056755b52522bdbc1516b144adeca590ca5ab63bced0213e17e8fa
font_01_sfnt_off00006bb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB3 15860 bytes
SHA-256: 709f44c36408e51fef42ae16e39b48844ddd9b17c169e815f81fb9832af0e28e