Malicious PDF — malware analysis report

Static analysis result for SHA-256 11276f663bbdcc3a…

MALICIOUS

PDF

125.3 KB Created: 2020-08-06 17:11:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c8082081e325584d4589823d03ef1920 SHA-1: 4d693a021d802d98330d21642aa53cf8174c6a49 SHA-256: 11276f663bbdcc3a449860ecc23bad7a19095d7e6e2cc33a4cece6ea3b5a52ca
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious infrastructure, specifically 'https://ttraff.cc/pify?keyword=chinese+alphabet+a+z+pdf'. This suggests a phishing or scam attempt, likely using the document as a lure to drive traffic to malicious sites. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=chinese+alphabet+a+z+pdf In PDF document text
    • http://files.jopatti.com/uploads/1/3/1/6/131607075/kegegas-gemaxex-vurux-bawezisof.pdfIn PDF document text
    • http://files.breizh-amerika.com/uploads/1/3/0/7/130776602/8f061.pdfIn PDF document text
    • http://files.schsprojectgraduation.com/uploads/1/3/0/8/130814402/pizono.pdfIn PDF document text
    • http://files.hayed.org/uploads/1/3/1/8/131856333/3598016.pdfIn PDF document text
    • http://wuwuxofo.mrsgant.org/uploads/1/3/1/4/131407227/zivorinomelosojumeli.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/1/0429/1251/4201/files/vuxudovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9181/0717/files/lightest_reader_for_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1868/1496/files/kijekejepobatizavogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6776/0028/files/want_to_edit_file_for_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1400/3610/files/mysql_list_databases.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sosivizugepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9257/3334/files/lizifosajokum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6106/7428/files/85483214950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6122/9206/files/40837738923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7503/4524/files/vusuzokiwip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4133/9045/files/59070985105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9417/2058/files/38307293816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9540/7269/files/okami_warriors_sekiro.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

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e990.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE990 50976 bytes
SHA-256: a601a9abc8e9e3b5695153af407ba3d244fc2f4f74ef8f96013568b988611c93
font_01_sfnt_off000183a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x183A4 5128 bytes
SHA-256: ceb81262f07eb70f3ff16327a43117764bf54656f433123c8e355d2164331a16
font_02_sfnt_off00019509.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19509 4832 bytes
SHA-256: b15353c3a95bc3a9e1506e0cb0b4502d284e37fc0aec159028c441e94a5e866e
font_03_sfnt_off0001a660.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A660 14972 bytes
SHA-256: ca562e630ec420300a6fa39fcd9e5a131504127496024a09c1f7176294d81722
font_04_sfnt_off0001d24a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D24A 16036 bytes
SHA-256: 52db30b66cfb76898988bc7c6ed152514c301740808ab95bec9c68e49df23550