Malicious PDF — malware analysis report

Static analysis result for SHA-256 47d8d633f3e04226…

MALICIOUS

PDF

42.1 KB Created: 2020-10-15 00:52:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: fd9de8097b2af097f0970de2bcc6492c SHA-1: e2e10e8d14b3c006ab131009d2a9246cf45f43ec SHA-256: 47d8d633f3e04226d3b61d0d20ccc5ca3f02f806f2ed5cfb1df8df4ef7f70a85
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://gettraff.ru/123?keyword=blending+options+in+photoshop+pdf In PDF document text
    • https://buluzuzumaz.weebly.com/uploads/1/3/1/6/131636727/bolexevup.pdfIn PDF document text
    • https://vuzevarezevarot.weebly.com/uploads/1/3/0/7/130740461/fisewoludemadijop.pdfIn PDF document text
    • https://taxajadotediru.weebly.com/uploads/1/3/0/8/130873824/zutabolom-neritevi-wapatokilab-nilelebatojo.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/0c18874847f.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/vepulakanug.pdfIn PDF document text
    • https://fixabugodorev.weebly.com/uploads/1/3/1/8/131856934/1948144.pdfIn PDF document text
    • https://site-1040036.mozfiles.com/files/1040036/pedukofewuzojutipa.pdfIn PDF document text
    • https://site-1043288.mozfiles.com/files/1043288/xurepax.pdfIn PDF document text
    • https://site-1038955.mozfiles.com/files/1038955/rofejasefekidozeruv.pdfIn PDF document text
    • https://site-1043938.mozfiles.com/files/1043938/zaxifejuwegatewelezukuw.pdfIn PDF document text
    • https://site-1039733.mozfiles.com/files/1039733/tutavelupoburaneva.pdfIn PDF document text
    • https://site-1041866.mozfiles.com/files/1041866/lunojifizuvulotip.pdfIn PDF document text
    • https://site-1042624.mozfiles.com/files/1042624/papopesarowevowesipo.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/1/0484/2451/7800/files/vofalugomig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/0863/8106/files/12916247750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7773/0464/files/rexadekaxav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9503/8888/files/galigamevapebume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/8161/2446/files/salakefadesofetuxoperi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f589765-4110-4649-afe6-122e99d1febf/88495951991.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17362b00-c4b2-46bb-ae9a-3a7770b64f82/wetozaxamenobusuzov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a3a5a4b-6036-4f52-94cd-aa519ee631c4/27092357980.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d78658a-1849-4500-9763-03ff16e2f019/zefunafige.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81fd2d44-f559-4871-bfec-37984de1d55b/48294344651.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6705 5044 bytes
SHA-256: 25c6001f27c34dae18c9dc5a6b8d983f6f1b5fedc7b0a51d63d2563b974cf813
font_01_sfnt_off00007837.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7837 10260 bytes
SHA-256: f669771dce7a5926ced87bf16b96c3f914a3477f4132ec700f25c0de301f175f

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