Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e87f3f79595e07c…

MALICIOUS

PDF

53.2 KB Created: 2020-08-14 18:30:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6028b61624ad181b746a9e731a188da5 SHA-1: cc787e4463cb6f6b8e06369c28e60bd7930b0ae0 SHA-256: 9e87f3f79595e07cdf571bbf9440ec0af91385db7e41648e0098eefcaf0296fc
162 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a 'Celtic font free' download. The PDF also contains a large number of embedded links, many hosted on Shopify, which is indicative of a link farm used for SEO poisoning or to obscure the final malicious destination. The primary attack vector is likely social engineering via a deceptive link.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=celtic+font++free In PDF document text
    • http://files.981themarcoislandfm.com/uploads/1/3/0/9/130968984/9790a2b6e0.pdfIn PDF document text
    • http://gitame.tenniswos.co.uk/uploads/1/3/0/8/130874493/dakog-xatemibexulu.pdfIn PDF document text
    • http://files.replenishnaturalhealth.com/uploads/1/3/0/7/130738513/tipafawi_zewosirir_fazujudolidowuf.pdfIn PDF document text
    • http://basar.aprilfairbrother.com/uploads/1/3/1/4/131482992/b8a1b19d42e949.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/1/0429/6517/2387/files/zanijevaxepuvami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4516/5976/files/siwelumezamamujir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zizamazigunonafimav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32686583269.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/baxumedufimoval.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9276/0981/files/kawaii_tarot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3051/8679/files/99976308098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7920/5013/files/ancient_rome_colosseum_information.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9118/2243/files/rigovitofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1311/8872/files/26821203279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6393/4105/files/bemoxogopasadip.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007981.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7981 4392 bytes
SHA-256: 0aec2ea743d444a5cc7b5ac0f0b806588372af5dd903f457effea665b39ac856
font_01_sfnt_off00008876.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8876 14084 bytes
SHA-256: 3f405caea5385ec1b5b3609f93695537cff66aa8422bc322ac4d6e01f2992b72
font_02_sfnt_off0000b2b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2B6 16180 bytes
SHA-256: 39ec56239dfbadaf1152f352425373198320bbf04611a9bdd20f934da35849a3

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