Malicious PDF — malware analysis report

Static analysis result for SHA-256 8827df04bb818e38…

MALICIOUS

PDF

43.6 KB Created: 2020-08-28 03:28:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2d2509a6f6eccc78e2d504f07423db79 SHA-1: 2164d23c2a91f5632e7c45048421fe404071d13d SHA-256: 8827df04bb818e388fcb74f3efa73d3ae90500b828113ae58c4977b5a6930936
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file contains numerous links to SEO redirectors, including a critical finding of a link to known malicious infrastructure at `https://ttraff.ru/pify?keyword=heroclix+dial+maker`. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure the user into clicking it. The presence of a 'Clipboard command execution lure' heuristic indicates the document may also instruct the user to interact with their clipboard in a way that could lead to command execution, further supporting a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=heroclix+dial+maker In PDF document text
    • http://files.silverchain-us.com/uploads/1/3/0/8/130874317/lisuda.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/1/0440/5621/5702/files/43413604033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6668/3545/files/gukibogeve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/49181475687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/5392/4771/files/refimawiduvatuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7437/8142/files/autocad_estudante_autodesk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2352/4259/files/pagalworld_english_songs_2017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6060/9703/files/92167235036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4620/5602/files/telenigasiluxalowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2568/9758/files/slaying_excel_dragons.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6942/3257/files/calculus_art_of_problem_solving.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6553/1806/files/1083378924.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 1

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_off0000604d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x604D 4604 bytes
SHA-256: 999d8ea18d71da986acc2749382c8dea17bf29faf7d77bc47cb99548e9abd4b0
font_01_sfnt_off00006fe0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FE0 10480 bytes
SHA-256: d8b916b829caadd452cdd40a2afbf05a01d5ba1f862b2f0153a997f35dd3185c
font_02_sfnt_off000093bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93BD 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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