Malicious PDF — malware analysis report

Static analysis result for SHA-256 2397ebef7d1fe84f…

MALICIOUS

PDF

47.3 KB Created: 2020-08-28 12:08:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 12505f5b5c7d0f4ae770535651457478 SHA-1: 8c6759ea1ecb1a40cdbbbdb7623f6dead00580f0 SHA-256: 2397ebef7d1fe84f0a606cca98709e50c1268c8e7d32e8ede7ba0bca5f73c6e9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on shopify.com. The document body, though heavily obfuscated, contains the same malicious URL and several benign-looking PDF links, suggesting a deceptive lure. The ML classifier also strongly indicated maliciousness.

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=teen+wolf+season+6+episode+19 In PDF document text
    • http://nuxumuvir.babyg-lash.com/uploads/1/3/0/7/130775583/1617803.pdfIn PDF document text
    • http://files.essentially-art.com/uploads/1/3/1/0/131070230/2955867.pdfIn PDF document text
    • http://files.edibologyinfusions.com/uploads/1/3/1/4/131438211/vabedorere.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/1/0434/2549/7239/files/tinkers_construct_tiers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6484/2657/files/sejepat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/3033/9735/files/pixufedorogemuwonej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/3466/5114/files/11511799704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2862/7099/files/wozufozofok.pdfIn PDF document text
    • http://mowak.crumbs.eu.com/uploads/1/3/1/8/131856022/xonujazujoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6395/7909/files/bewenedimuvutifitijefeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/52569169211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9148/3042/files/fuluji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2784/9639/files/gubatuboxam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9150/1990/files/black_desert_online_musa_gear_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7503/4520/files/pepepoler.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 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_off00006d0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0C 5048 bytes
SHA-256: b975b34089bc0d00d0d636a76dbb77c8dcce541bc1bfa3810b50ca1b6728cc20
font_01_sfnt_off00007e56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E56 10492 bytes
SHA-256: 61d1170baefb2d69fdb10292bc5e248de3c7c4efdf9c85228930e4b17933556e
font_02_sfnt_off0000a23f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA23F 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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