Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c49c86b98265a0c…

MALICIOUS

PDF

62.6 KB Created: 2020-08-12 23:10:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 57a7332f837466462d5cf34cab280a70 SHA-1: e77fac94875499f0cea49780e6289542f49320a6 SHA-256: 5c49c86b98265a0c80cd3be52b69d582454e328bf7b6305f40e20b117e9c7d5f
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate downloads, but the primary link redirects to a known malicious domain, ttraff.cc. This domain is likely used to host phishing content or distribute further malware. The ML classifier strongly indicated maliciousness, and the PDF structure itself is geared towards creating a link farm for SEO manipulation, a common tactic for driving traffic to malicious sites.

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/wb?keyword=class%203%20ncert%20english%20book%20pdf%20download In PDF document text
    • http://vunobiz.runcibletheatre.org/uploads/1/3/1/3/131398091/gawujabepi_lovexag.pdfIn PDF document text
    • http://files.ethics-based-on-science.com/uploads/1/3/1/4/131453241/5674109.pdfIn PDF document text
    • http://files.thewholisticrevolution.com/uploads/1/3/1/6/131606159/wajufebovatomo.pdfIn PDF document text
    • http://lomiwom.zannagoldhawk.co.uk/uploads/1/3/1/8/131857334/855a092f202472.pdfIn PDF document text
    • http://zivaza.dileoenglish11h.com/uploads/1/3/1/3/131379578/6531905.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7868/0727/files/55175678410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0028/2783/files/aci_318-_11_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5090/1402/files/48849243056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4395/3567/files/xobesiburulefukipeja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8590/5576/files/xewakenozujelakad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6880/8613/files/94100246320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3167/3504/files/pitobenufomonuwapameli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7609/1045/files/stanford_achievement_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13578549785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6073/1803/files/adobe_photoshop_cs3_tutorials_in_urdu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8898/6787/files/rabepezox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1690/3062/files/clinical_hematology_atlas_3rd_edition.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D68 5780 bytes
SHA-256: e3589fe3539cc2dd4b8c80e3bafa738e14ff1b6694b2c1f6413c2297652a48ee
font_01_sfnt_off00008103.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8103 6964 bytes
SHA-256: d30ffe2a909744a5749e2f9c522e302e3c05dac389194459ab66b5bd135a92e1
font_02_sfnt_off000094d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94D6 10296 bytes
SHA-256: 083d100b8efc1c4f23b8564dd6540454356eb8c517c9e48154b509860102f538
font_03_sfnt_off0000b829.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB829 17492 bytes
SHA-256: b2b92fcd2919487c650493c91add21b847ed7c13e64e38272e25808cac974a95
font_04_sfnt_off0000d1b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1B6 7896 bytes
SHA-256: cc6a6e9863ea69a4555c2829463e1bd2ac953063813396b7d21556e1948ad345

Open this report in the interactive analyzer, or submit your own file for analysis.