Malicious PDF — malware analysis report

Static analysis result for SHA-256 2218fbe4bfcbc790…

MALICIOUS

PDF

38.5 KB Created: 2020-08-24 17:57:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 75f8efd1f2d45de47b3ab829dc958727 SHA-1: 631924f17a2819c75b4352d8691f093c89c4a55d SHA-256: 2218fbe4bfcbc79064c957e85324ce56a2f57bcad36988eb93f9f8e946c77fa7
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, and one critical link to a known malicious redirector. This indicates a link farm strategy designed to obscure the ultimate destination and potentially distribute further malicious content. The presence of the redirector URL https://ttraff.cc/pify?keyword=split+flex+head+king+sheets is a high-priority indicator of malicious intent.

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.cc/pify?keyword=split+flex+head+king+sheets In PDF document text
    • http://soseniwe.lifetimeepoxyfloors.com/uploads/1/3/0/7/130776321/0fb88f3881.pdfIn PDF document text
    • http://files.silverdollardogs.com/uploads/1/3/1/4/131483391/wukivifiwopajij.pdfIn PDF document text
    • http://files.dendaledairygoats.com/uploads/1/3/1/8/131856186/makugalokufivixagi.pdfIn PDF document text
    • http://files.atcentershop.com/uploads/1/3/0/8/130814227/xewaxabebup-dines.pdfIn PDF document text
    • http://files.loudounlyricopera.com/uploads/1/3/1/4/131455543/6504047.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/1/0440/5238/1846/files/junejegibewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4424/9499/files/duxureba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/xekuxamoligibakapibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5679/0681/files/birrell_and_davies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0723/7531/files/3383113973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4334/8892/files/65061457818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6743/1329/files/pokemon_heart_gold_kanto_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9898/1030/files/5112498088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tefabojukiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2874/2298/files/mitsubishi_mini_split_installation_manual.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000056ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56EF 5444 bytes
SHA-256: 134377edc9d5028b25f548690f437392e6503536180c8c1baee2be8a218c2f47
font_01_sfnt_off00006972.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6972 10560 bytes
SHA-256: 7f6aa52830d8cad84c7756a4f958e95da761b5c0acdaab7d68377c52986ec6cc

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