Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3c94a576025a7dd…

MALICIOUS

PDF

39.7 KB Created: 2020-08-18 19:32:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 400eb4e5e3f40fc460aeb569676b38c3 SHA-1: dbb454ac830b85c6b4b2f93ae97c0fbe8a1f5b00 SHA-256: b3c94a576025a7dd8a064f457306ebca4982d00a995104640e07b979deade122
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=blade+2+soundtrack++free'. This, combined with a PDF link farm heuristic, indicates a strong attempt to redirect users to malicious content under the guise of a soundtrack download. The document body, though heavily obfuscated, also contains the same malicious URL and other PDF links, reinforcing the lure. No scripts were extracted from this sample.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=blade+2+soundtrack++free In PDF document text
    • http://files.staceydrago.com/uploads/1/3/1/4/131483391/5344998.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/1/0435/4008/6935/files/48611039557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0161/8330/files/brawl_stars_mod_apk_android_plus_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5058/1662/files/11916651594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/70314354958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/durusibowipeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6511/4775/files/98035618314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7098/0247/files/sirerorok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6807/0824/files/nefutigaluvulexogege.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 4

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_off00005ea7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA7 5260 bytes
SHA-256: 22290733268b38003ecf517729dc1c609244bf2374e064e7e1f3468bc6fe0f1d
font_01_sfnt_off00007095.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7095 9896 bytes
SHA-256: e97dc2561d778a1e440b66f218f40164cc84ca015bca4bc681c3c876be55cb0a

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