Malicious PDF — malware analysis report

Static analysis result for SHA-256 c078d57f31fd2460…

MALICIOUS

PDF

65.1 KB Created: 2020-08-28 05:16:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2c913b20af1132fe1e9b30058ab15b43 SHA-1: f86f3185fe5bfccad1bbae77ef14822993294b6e SHA-256: c078d57f31fd2460921e5e1695f0532ae49e68537122ee5c72d15c26b671d00d
194 Risk Score

Malware Insights

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

The PDF contains a link farm with numerous external links, including a redirector to 'ttraff.cc'. This indicates an attempt to lure users to malicious content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample, but the presence of the link farm and the redirector strongly suggests a phishing or malware distribution campaign.

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=building+quadratic+functions+from+da In PDF document text
    • http://files.savetherockcreekparkdeer.com/uploads/1/3/1/3/131380985/zilanusogav.pdfIn PDF document text
    • http://wovuf.esparzafc.com/uploads/1/3/1/4/131407241/fiwuzivopoma.pdfIn PDF document text
    • http://files.tampabaymodelrailroadclub.com/uploads/1/3/1/4/131409498/e8e11df305c5fd.pdfIn PDF document text
    • http://vurizek.mrmimosascbdmall.com/uploads/1/3/1/4/131437601/55f9b804.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/1/0428/7689/5398/files/52715167514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6295/8997/files/research_design_ebook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/0845/8661/files/motivation_letter_sample_for_admissi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3640/8982/files/materiales_dentales_barcelo_santana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1313/4741/files/suzosejuwasigexafaligapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8849/5270/files/84387454978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1816/6167/files/79507511340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5704/5913/files/pigigutibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8606/1480/files/89668140870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2391/7478/files/sakesoranilutekogiwixapex.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_off00009e3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E3F 5516 bytes
SHA-256: a91cb023ff59edd4a50692bd0024886b4404e84425164ff4629acbeb4890bbd6
font_01_sfnt_off0000b0d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0D9 15648 bytes
SHA-256: da1fcf2aac7c91b6bda7dcdd47a34c16c31277090cd9011329e3f47ff6c8a6d6
font_02_sfnt_off0000e20a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE20A 16060 bytes
SHA-256: 713933360072c9d59346590fad668f98c3603c6d2b72ed941ce85481f6af0b74

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