Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c5c614c21fd327d…

MALICIOUS

PDF

45.0 KB Created: 2020-07-31 06:50:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6040cef487c6fc0f53f212d2ea5897b0 SHA-1: 569d600aadec9ff1f1648576159b4a68528d1876 SHA-256: 5c5c614c21fd327d7079ec95a32f5870f4424c46b3ee90001591c2e4a194193d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file contains numerous links designed to appear as a link farm for downloadable documents, but they redirect to malicious infrastructure. The primary redirector URL is ttraff.cc, which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'Oracle database 12c administration workshop ii pdf', suggesting a lure for technical users. 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=oracle+database+12c+administration+workshop+ii+pdf In PDF document text
    • http://files.cyclingsportscenter.com/uploads/1/3/1/6/131637224/posomojanozosaf.pdfIn PDF document text
    • http://files.northuistandgrimsayfcc.org/uploads/1/3/0/7/130775260/4105501.pdfIn PDF document text
    • http://files.glamourgirlhandbags.com/uploads/1/3/1/3/131384401/c76d3ad.pdfIn PDF document text
    • http://files.norwaynealumni.org/uploads/1/3/1/6/131606111/6ebef.pdfIn PDF document text
    • http://files.globalcitymission.org/uploads/1/3/1/6/131637313/pusen-jiziz-govuwuri.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/1/0433/3407/4523/files/fugedapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/rugofuvigitomikakumivir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0649/8728/files/masinurewodez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5896/1315/files/gadef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5904/3749/files/zisoxijiwigunojupopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3487/7847/files/5238072527.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9096/7714/files/65555748274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5470/2496/files/61336157056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6741/6488/files/gagisibusuvonozituserab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/miveguxuxububepevomozit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7341/4055/files/pojemepodavar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0896/6301/files/rovijitepujusezeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44329390643.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 5

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_off00006fb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB4 5688 bytes
SHA-256: b692ab95dd88df04b7642d2e23f8cb1bfb9417b223a64a1e646081e2f13f71ca
font_01_sfnt_off000082ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82EA 10316 bytes
SHA-256: 8f9df04ce1420ffa14ba606fe35c9acfffe5dd108944198cf4ad3eb4289d7236

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