Malicious PDF — malware analysis report

Static analysis result for SHA-256 7388bad365cff649…

MALICIOUS

PDF

42.6 KB Created: 2020-08-16 20:05:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 368411b76af076791cdd710e8f9de0c4 SHA-1: 808777704376d94bce42c01436abd51bebdbc0f4 SHA-256: 7388bad365cff649e46b21853a7779db80e3f75791c39dcf21deddd6d6150882
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links, many of which point to redirector infrastructure. The primary lure appears to be a 'Guide fiscal uqtr', directing users to 'ttraff.com' which is flagged as malicious. The document body, though heavily obfuscated, contains embedded URLs that are part of a link farm, suggesting an attempt to drive traffic to malicious sites. The ML classifier also strongly indicated maliciousness.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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.com/pify?keyword=guide+fiscal+uqtr In PDF document text
    • http://files.springvilleffa.com/uploads/1/3/1/1/131164556/nuporak-ruboluraj-judotafisulem.pdfIn PDF document text
    • http://files.dianalara-somatics.com/uploads/1/3/0/7/130738484/gubevowowod.pdfIn PDF document text
    • http://vakalofa.advancelabordaypicnic.org/uploads/1/3/2/8/132814930/6271287.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/1/0431/5008/2202/files/gixezuxemawawazibupor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/1021/5323/files/abecedario_chines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4625/6295/files/xbox_360_wont_read_disc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3365/6476/files/jopajatemi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2609/6036/files/55815194139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6645/8265/files/71579456860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5664/3739/files/audit_trail_in_qualitative_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4264/1832/files/wowuxuvaminekaduse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/74264157367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2440/8991/files/lopesupopuwodor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7018/5879/files/veputuwoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6295/1077/files/basavenaxexidekafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8870/7738/files/worisolonofi.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005112.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5112 5172 bytes
SHA-256: 6796ddd8e5ca8dcd294523dc4c57afe5fc03116bcf8a6d2c1da330ee18940c6c
font_01_sfnt_off000062b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B2 10536 bytes
SHA-256: f87c49502332918573875ac34c853a46ab4c6079910db130885c9a2d9679dfd2
font_02_sfnt_off000086f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86F2 16164 bytes
SHA-256: d781c508aaf473e50263a6aabc3f4161b7fa10724c54bb8d35addee38a7f1c44