Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6b3a7d49cbc4744…

MALICIOUS

PDF

40.6 KB Created: 2020-08-17 09:59:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a6f22b3efd0d8f0a5c757fa8235bcaa9 SHA-1: 2ee6aca9875b4dee67e5875cefa014657b711ada SHA-256: f6b3a7d49cbc4744255632d50ced222356a24545fffe3c011824a29331c162d1
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as an employment form template, which redirects to malicious infrastructure at ttraff.com. The ML classifier strongly indicated maliciousness. The document body is heavily obfuscated, but the presence of the malicious redirector and the link farm heuristic indicate a phishing or redirection attempt.

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.com/pify?keyword=employment+form+template+in+html In PDF document text
    • http://files.nostalgeekretrogames.ca/uploads/1/3/1/6/131606965/1643758.pdfIn PDF document text
    • http://wafotu.simplycheesecakesandmore.com/uploads/1/3/2/3/132303079/2244259.pdfIn PDF document text
    • http://files.changinglungcancer.com/uploads/1/3/0/9/130969825/e1c129c6c141512.pdfIn PDF document text
    • http://polut.bodyvelocitybootcamp.com/uploads/1/3/0/7/130775403/811b564b9.pdfIn PDF document text
    • http://files.theneoneffect.com.au/uploads/1/3/0/7/130738764/8579411.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/1/0429/6366/5055/files/44433326065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1186/4738/files/65794962509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/p._s._meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6863/6834/files/gta_v_cracked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9967/5041/files/tedoxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7539/4979/files/90671057785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3747/2421/files/bixufazewetet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5217/9364/files/python_ldap_authentication.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/tidoxedibeleze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7053/7374/files/54722702337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9241/0525/files/aircraft_airframe_book.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_off000062ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AD 5024 bytes
SHA-256: f4f00a18d9d9c21412e3266a7e76ea49f0b43bd1274ec0585777428301e51f68
font_01_sfnt_off0000739b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x739B 9992 bytes
SHA-256: 4cc320ae020dd5ec5319c8678a0268a4e5d2cb53407cbb56bb98a5704c51e011

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