Malicious PDF — malware analysis report

Static analysis result for SHA-256 7939d61eff58b01e…

MALICIOUS

PDF

48.9 KB Created: 2020-10-21 13:10:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: bde397460f853657c50ad073f1089d6d SHA-1: 5f9011f2591940eacf38a2dd1abfa300060dcb7a SHA-256: 7939d61eff58b01ea14a3c9ca41ca28a8f7b0153c375d25531aecc62655e138f
194 Risk Score

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://ggtraff.ru/123?keyword=jo+aapko+chahiye+in+english In PDF document text
    • https://cdn-cms.f-static.net/uploads/4379837/normal_5f8aeff07b4a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365575/normal_5f87d9b5971f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369930/normal_5f8c2a4785954.pdfIn PDF document text
    • https://penulikadima.weebly.com/uploads/1/3/1/4/131482887/1f642faf9daae4.pdfIn PDF document text
    • https://taxajadotediru.weebly.com/uploads/1/3/0/8/130873824/124b884337150.pdfIn PDF document text
    • https://bibeliki.weebly.com/uploads/1/3/0/7/130738572/sovonasob.pdfIn PDF document text
    • https://desaviguwogo.weebly.com/uploads/1/3/1/8/131871994/5037129.pdfIn PDF document text
    • https://fotejisatowonu.weebly.com/uploads/1/3/2/3/132302873/zupapebu.pdfIn PDF document text
    • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/3554216.pdfIn PDF document text
    • https://tegugozitofo.weebly.com/uploads/1/3/0/8/130874592/xebotafilet_xabifu_tewetefib.pdfIn PDF document text
    • https://tudupumodowi.weebly.com/uploads/1/3/1/4/131406798/likovero-lowusa.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://s3.amazonaws.com/memul/pujotadepuxiwutefapan.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/72206288822.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/majix.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/36024708285.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/belajar_adobe_premiere_pro_cc_2017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5719/1843/files/corporate_finance_interview_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8151/2613/files/55167394060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3224/8469/files/liwekuboxamen.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70E4 5252 bytes
SHA-256: 44530607d32e4a4bc6d2cfd509006293d1d8f8103eea37f69319c2f8d77aa244
font_01_sfnt_off000082c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82C5 11392 bytes
SHA-256: c61afbabe422affa7831af610f8248e8979a5a1bf5302cc9eed377a99e7f212c
font_02_sfnt_off0000a922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA922 3372 bytes
SHA-256: 9827177da9db3e0204dc4a46f09fb192b0c2fccf709c0a2159661bd6228a996f