Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfe68aa4e12fc97a…

MALICIOUS

PDF

48.2 KB Created: 2020-07-30 05:13:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 861cd892d24eb41f19550c1fd1025a8d SHA-1: f6b658861f3444efa0fc0bc403fe1f515b44b355 SHA-256: bfe68aa4e12fc97a7f08b06e019d66659fb33d9405e7146f12433ad8e9e3f67c
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. This indicates an attempt to lure the user to a potentially harmful site. Additionally, a PDF link farm heuristic suggests the document is part of a larger effort to distribute malicious links. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create malicious PDFs.

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=esclerosis+multiple+tratamiento+fisioterapeutico+pdf In PDF document text
    • http://files.topnotchdjservice.com/uploads/1/3/1/8/131872015/rigudopulilare.pdfIn PDF document text
    • http://files.nextlevelgamex.com/uploads/1/3/0/7/130776735/7866785.pdfIn PDF document text
    • http://files.pillywigginsgarden.com/uploads/1/3/0/8/130814258/2604146.pdfIn PDF document text
    • http://files.riversidecoc.net/uploads/1/3/2/6/132681954/bovuzalonoduki.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/1/0430/3765/5191/files/36509135748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5154/7800/files/dalomonesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0851/3432/files/64419051428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/rotukiladadaxebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3772/0733/files/25729399106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5830/8006/files/kiral.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/93652773280.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/33084852306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9182/0711/files/90219705302.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3262/4797/files/91117727484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5663/5804/files/86120549627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9966/7099/files/womovafodavebalalenes.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_off0000802d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x802D 5140 bytes
SHA-256: d27b5255fccbfe5d722bef8ebc0a5aa0c962897a0d078eb4255bf80090a1960e
font_01_sfnt_off00009184.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9184 9892 bytes
SHA-256: 6851811c538b9291b18c28e9bc3e0f0a6a91b0f5e254ad2cb24b781e39bce5e1

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