Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b283245fbc9732f…

MALICIOUS

PDF

59.1 KB Created: 2020-08-22 04:45:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: db942de798db38ae27be983bba873227 SHA-1: 65a3b2c56bf7286a7ef50e2f7f6aa0e5325dfc7a SHA-256: 6b283245fbc9732f60ee46d3793a2c5bc68e4e561ff47b6cfaafe16d6257d2a1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and a list of Shopify-hosted PDF files, suggesting a link farm or SEO poisoning tactic. The primary goal appears to be directing users to malicious infrastructure via these links.

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=bollywood+movies+list+2015+free++hd In PDF document text
    • http://files.dirkhambloch.com/uploads/1/3/1/4/131452878/e37f43dbc9.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/1/0439/9369/4366/files/resume_example_for_job_application.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3567/2219/files/pizezazuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4248/7963/files/94830362127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0781/9422/files/7697839323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wogol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8741/3923/files/99507512884.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4843/5861/files/arbeitsbescheinigung_jobcenter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7940/1634/files/42726174983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/datixirozifiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5486/5320/files/nenopuwafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5822/4549/files/sakida.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000092e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92E9 5692 bytes
SHA-256: 9fc9c4e65b83d3ebe05ec9fe387114e56275d4e9ba41f1bc7e892690073cdb8d
font_01_sfnt_off0000a652.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA652 10452 bytes
SHA-256: 3b5ca977eb2deb100660354334ae1cbd5fe990598b5aec10ba77622ccbfa3ba6
font_02_sfnt_off0000ca33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA33 16164 bytes
SHA-256: ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8

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