Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc5e0fae08809b11…

MALICIOUS

PDF

42.5 KB Created: 2020-10-25 06:04:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 936ad8b3a21cdd354168de643995dbe6 SHA-1: 8edbb517f28e0ffa4deabd96f65b8a31219b13ce SHA-256: fc5e0fae08809b11d3d09ebd879d3ce1db9f2f78c36d8a2fbf5cb5e166cfca7a
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://ttraff.me/aws?keyword=typhoid+fever+blood+test+report+pdf In PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/9594994.pdfIn PDF document text
    • https://winugemu.weebly.com/uploads/1/3/1/0/131070294/6f4135.pdfIn PDF document text
    • https://kurikezexiwu.weebly.com/uploads/1/3/0/7/130775092/3786005.pdfIn PDF document text
    • https://kawewadibuporak.weebly.com/uploads/1/3/4/3/134371142/4070682.pdfIn PDF document text
    • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/e276efd25922.pdfIn PDF document text
    • https://xalipifizipig.weebly.com/uploads/1/3/1/3/131379045/fegabugojirira.pdfIn PDF document text
    • https://ziripovopibew.weebly.com/uploads/1/3/0/8/130874468/zigol.pdfIn PDF document text
    • https://nisewoji.weebly.com/uploads/1/3/4/2/134266574/9f58583f.pdfIn PDF document text
    • https://kiseridebajesa.weebly.com/uploads/1/3/1/4/131408791/gimovukod.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006929.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006929.bin)
    • https://cdn.shopify.com/s/files/1/0497/8776/4898/files/94637466009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/3029/4940/files/6229266680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3046/3135/files/motion_for_reconsideration_massachusetts_criminal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/8631/3152/files/85772046665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7440/3480/files/vanepupigoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4114/3454/files/13899537297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/0145/2957/files/nojakegakujojibir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/7771/2068/files/second_galaxy_beta_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/vonusirukete/53217808544.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/fluoride_toxicity.pdfIn PDF document text
    • https://s3.amazonaws.com/rijaliwiguvex/vikarimojem.pdfIn PDF document text
    • https://s3.amazonaws.com/laradusa/quality_analyst_interview_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/fenaxetavot.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 extracted file (font_00_sfnt_off00006929.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006929.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6929 5172 bytes
SHA-256: d7af7ff03cc296eda69757cd6dfe0fac11f5f81479f0fe4d1219444a242b96de
font_01_sfnt_off00007ac0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AC0 9868 bytes
SHA-256: f69cd13c5ae2189b1fec269cb9a3c410fa5fe705ef527a15227ec4a4b73da17b

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