Malicious PDF — malware analysis report

Static analysis result for SHA-256 a28ccc00eafafc1b…

MALICIOUS

PDF

42.4 KB Created: 2020-08-23 06:55:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 48715cdfa85d6d2185f5831a298dbc6c SHA-1: 2bc0b6eb09002f5275623787101e2df54b1dc7f9 SHA-256: a28ccc00eafafc1bc91179a51514a568b4c6a6917520d44873e00c68bf157745
194 Risk Score

Malware Insights

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

The PDF file contains numerous links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=amaryllis+flower+information+in+english'. Another critical heuristic indicates a PDF link farm, with 'https://cdn.shopify.com/s/files/1/0429/2660/4447/files/21071984259.pdf' being the first identified URL. The document body, though heavily obfuscated, contains these URLs, suggesting a lure to external malicious content.

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=amaryllis+flower+information+in+english In PDF document text
    • http://podij.swimrunning.com/uploads/1/3/1/4/131407668/xupesuvadod.pdfIn PDF document text
    • http://files.camayacoastbeachproperties.com/uploads/1/3/1/8/131871780/2060245.pdfIn PDF document text
    • http://rasok.whldesign.com/uploads/1/3/0/7/130775195/d105212.pdfIn PDF document text
    • http://fapujuso.silverfernflag.org/uploads/1/3/1/6/131637316/boranafagot.pdfIn PDF document text
    • http://files.definir.co.uk/uploads/1/3/0/7/130775712/vatuzasumop_naxagaxukiziz_pubetaze.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/1/0429/2660/4447/files/21071984259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6782/4533/files/puzovigurirasiwerozesuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/69651331918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9014/0581/files/22318633839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zenafepejeviwasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6783/4517/files/corpus_linguistics_and_statistics_with_r.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/8993/6798/files/botanics_brightening_face_sheet_mask.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8125/2507/files/witizunexilesosone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2920/8986/files/29610261390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2353/1158/files/bgp_protocol_explained.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2512/9894/files/28596697347.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 3

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_off0000639c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639C 5364 bytes
SHA-256: 039b628e9d7ce52af3f6056737f7f232afe4a0c145ac5971268ab61dc2ed64f5
font_01_sfnt_off000075c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75C5 11448 bytes
SHA-256: ad67cb9f8c71ceb21a5ad0da11a3d9056c59701244690ebff57c927e05f1b83d

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