Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf8c85ac0e2fc8b4…

MALICIOUS

PDF

168.8 KB Created: 2020-07-26 03:00:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a04ac44c1a32614c3864be808abf3e93 SHA-1: d6288858194437cf2bae7e05ff05b2ddecd71a67 SHA-256: bf8c85ac0e2fc8b4135d0917bf90aa79915fdb9f2792fab59f60d18c0f9dfbcf
134 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.cc, disguised as a user manual for Ableton Live 10. The ML classifier also strongly indicated maliciousness. The primary attack vector is likely social engineering via a malicious link embedded within the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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=user+manual+ableton+live+10 In PDF document text
    • http://files.afterhoursfilmsociety.com/uploads/1/3/1/3/131379343/fogusinivixu-xigiseje-mekira.pdfIn PDF document text
    • http://files.thedinopark.com/uploads/1/3/2/7/132740415/6535022.pdfIn PDF document text
    • http://files.midwestagricredit.com/uploads/1/3/1/3/131384335/vujupalu_sibikekupagona.pdfIn PDF document text
    • http://files.gabischefflighting.com/uploads/1/3/0/9/130969097/2914717.pdfIn PDF document text
    • http://files.jmmlewis.com/uploads/1/3/1/6/131606360/195389.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/1/0430/6118/2617/files/87127543616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0706/5757/files/30665050961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5384/9499/files/45648251469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6166/files/pezeguwev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0213/3656/files/40614022965.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6187/0743/files/59908508751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6640/0663/files/88141671751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/sepalab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0811/4340/files/busomokoruwarajiradu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2351/5294/files/xubiwubofojuneb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0311/7721/files/31201208782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7767/1843/files/50438192971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1047/3633/files/1950141811.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_off00025b02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25B02 5100 bytes
SHA-256: d1502897889e73dbbd9f11dd71eff64977600c2c04c2e73ce7a33e3cde892ec2
font_01_sfnt_off00026c46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26C46 12956 bytes
SHA-256: fb3173189e6da78bfff8bbaf6696e0ca129efe269aa0a846c46a68d30240bbf0

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