Malicious PDF — malware analysis report

Static analysis result for SHA-256 1be948bc6e667135…

MALICIOUS

PDF

40.4 KB Created: 2020-08-16 16:04:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c12cda39b24069f87cc68786e63c0941 SHA-1: ba60c4327f83e856cd6b937db0fb87aa3fa7075c SHA-256: 1be948bc6e667135a84d6b6a374f1323f57877386728a16db88099dc27ce7526
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=osrs+brutal+black+dragon+range+guide', likely leads to a malicious site. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF files, many of which are hosted on potentially suspicious domains. The ML classifier strongly indicates 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.cc/pify?keyword=osrs+brutal+black+dragon+range+guide In PDF document text
    • http://sufepob.lakesideschnauzers.com/uploads/1/3/1/6/131637047/wadizorusunovim-xenimefosita-jotozere-salifixowapuso.pdfIn PDF document text
    • http://files.terryrich.co.uk/uploads/1/3/0/8/130813804/zojuwizom.pdfIn PDF document text
    • http://xafakufe.pandakungfucenter.com/uploads/1/3/0/8/130814238/8079589.pdfIn PDF document text
    • http://files.tateliberaswanson.com/uploads/1/3/1/4/131411688/3546704.pdfIn PDF document text
    • http://files.orca-archaeology.org/uploads/1/3/1/4/131437123/zudejuxubalerimug.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/1/0433/0687/7080/files/81397135942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8362/8697/files/vezikezuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2783/0696/files/mogikudagafazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1639/4648/files/23406998511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2254/0185/files/vitamin_b12_deficiency_anaemia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/37932197689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0469/0581/files/12359343925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2313/7957/files/ps4_error_ws_37397_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1628/0469/files/apa_6th_edition_reference_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2014/1223/files/free_sheet_music_score.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_off00006011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6011 5336 bytes
SHA-256: d00d64d66c3ba94890048f3b93e171766ab6df2591fa14366c8deaec2b616691
font_01_sfnt_off00007241.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7241 10180 bytes
SHA-256: 3862c83b87daef1934b8f864b18ec0597a1f450ee91b7983a794a6f5af4a1910

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