Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaa1efd864cade76…

MALICIOUS

PDF

62.6 KB Created: 2020-08-04 12:27:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 73b6b7724f337c1a34e38756d5a7b966 SHA-1: 617d96a460457783fefd8b9829d2d7bee5532135 SHA-256: eaa1efd864cade76ba405a68a1897e246cbcd036c755db929f205efec0655ef1
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=arnhem+map+pdf'. The document body, though heavily obfuscated, contains the string 'Arnhem map pdf', suggesting a lure. The presence of many external PDF links also indicates a link farm or redirection strategy. No scripts were extracted from this sample.

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.ru/pify?keyword=arnhem+map+pdf In PDF document text
    • http://files.sophalawyer.com/uploads/1/3/1/8/131857060/rulevolipubiw.pdfIn PDF document text
    • http://files.mobileveterinaryimaging.net/uploads/1/3/0/7/130776079/d43c00ab7.pdfIn PDF document text
    • http://files.willhutchinsonart.com/uploads/1/3/1/8/131856860/dakane.pdfIn PDF document text
    • http://files.ecofloor.lt/uploads/1/3/1/6/131606954/liruzakirejuriluwu.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/1/0440/8374/0822/files/sowavevutemewew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6660/6247/files/zovezekijamuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5550/4795/files/ucsf_laboratory_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2940/5600/files/zogijuleturuxez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1780/3675/files/como_pasar_de_a_word_sin_programas_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3260/7894/files/33771789870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4101/3415/files/62639669680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6281/3084/files/zabawumupifis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8219/5879/files/25890255543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6212/4959/files/71168626282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4396/2532/files/fijilofoketalogipew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2695/files/xodikulu.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_off0000a8ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8AB 5060 bytes
SHA-256: e9082a58b386522f988b9a91a0c94e62935c449da3a8ef86f69b5775ace11cc9
font_01_sfnt_off0000b9b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9B6 16820 bytes
SHA-256: cc206985c653b8493b724bcbdaa1dfe64704538ef7f3db0fec8cf66c77542ece

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