Malicious PDF — malware analysis report

Static analysis result for SHA-256 80f2beac9edd8abe…

MALICIOUS

PDF

48.0 KB Created: 2020-08-08 19:09:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 12f5cefd45937e8d77c41d93dd6fd2f5 SHA-1: aa6884ecfd083352dcdb3ffe25c7abcfd05b2df9 SHA-256: 80f2beac9edd8abedff59375738401c5378f08d41ff67ecc4f7723137552ed72
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, including a known malicious redirector at 'https://ttraff.com/pify?keyword=cen+sad+treaty+pdf'. The heuristic firings indicate this PDF is designed to redirect users to malicious infrastructure, likely for phishing or malware delivery. The ML classifier strongly supports the malicious nature of this document.

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=cen+sad+treaty+pdf In PDF document text
    • http://files.therhodeislandecho.com/uploads/1/3/1/6/131637150/kudugogetol-boxik-fuginemuboki.pdfIn PDF document text
    • http://files.prettylittlethings.ca/uploads/1/3/1/4/131407148/nofamugamafatep-futovigo.pdfIn PDF document text
    • http://faluxun.columbiapsychmd.com/uploads/1/3/2/6/132681352/db60e8bc.pdfIn PDF document text
    • http://felomug.malibuatheart.com/uploads/1/3/1/6/131637016/xodumodomaju.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/1/0432/8423/4396/files/bemitinukoremuner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8983/6697/files/chopin_ballade_2_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8394/6397/files/sinubetexez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1646/1211/files/lajetexadifuzekumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8180/9558/files/jekoguzekuxabavov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7513/2821/files/3750223315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6544/1430/files/zifuvewumabuxuxeporiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9780/8285/files/pabef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9186/8313/files/6126765780.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3355/1260/files/44687175931.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006141.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6141 5012 bytes
SHA-256: cdad144ee17a7cc982fcda0dde78ae8b320ca9ce95f34c77092bf154eed6f698
font_01_sfnt_off00007263.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7263 10580 bytes
SHA-256: c49afabda627a7316278569db21152d1f28a56983dbff0d8c7764cd6e0ea527e
font_02_sfnt_off00009620.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9620 17980 bytes
SHA-256: e5bafa7c97af432d4f861ade00cdf0cc3729ca82cc26e2ea94e8a2d9e8b6e98f