Malicious PDF — malware analysis report

Static analysis result for SHA-256 672a9b7e9c1cfd13…

MALICIOUS

PDF

35.6 KB Created: 2020-10-04 06:22:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 0179f943b1967e4253758001194dab44 SHA-1: 592f12724d0e45643d5533350f1b2aec2b424bbe SHA-256: 672a9b7e9c1cfd13bfaadd7525672c33084a9ff0c2d9b36a8967f918a84a1a54
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.club/pify?keyword=amulet+book+2+pdf+free+download In PDF document text
    • http://files.saintluciaattracts.com/uploads/1/3/2/7/132740234/jomenipemarejopeto.pdfIn PDF document text
    • http://files.universalengravers.ca/uploads/1/3/1/0/131070113/gumimurojudada_boxewowope_sudikobug_kojovopidumez.pdfIn PDF document text
    • http://fofiruba.adamsantiquesofbarnstaple.co.uk/uploads/1/3/1/3/131380086/6e6bbf0.pdfIn PDF document text
    • http://tamemojo.spiritofthehorseshow.com/uploads/1/3/0/7/130739525/64d83c57b.pdfIn PDF document text
    • http://files.draytonmkc.com/uploads/1/3/2/6/132682697/noram.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2c991d6-c4da-431d-8255-8d80357d4fe3/kagatirujikufizivubadojo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bee2e87-225c-4d57-ba61-9b19efec2a68/62105480564.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ab8879b-95a5-4c06-8d7c-ccf72a74a55d/fomugibesemovig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90f095f1-d876-4848-a3ea-ed93b2564539/firujazariderilo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40077c35-13c6-4f63-9fb2-e88d0eae5b35/59096538469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4891/8426/files/the_slave_hunters_netflix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/1391/7856/files/15739127423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8160/5018/files/ut_austin_economics_advising.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6600/7445/files/wolverine_slide_converter_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9869/4042/files/catherina_sarah_rose_bebe_music_video.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/1849/2325/files/nigojofopodarugetun.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

Related samples 3

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_off000049d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49D4 5424 bytes
SHA-256: 4539d34f21a252c6db10fd3785f77d57c2cb80e857911e95f47c2c5cd71995f1
font_01_sfnt_off00005c42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C42 10596 bytes
SHA-256: dd608a610e3d498f1550f2b2548c2f31c8e71688282842c4484c1b5b6de9248a

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