Malicious PDF — malware analysis report

Static analysis result for SHA-256 304af4c72ea3a16d…

MALICIOUS

PDF

70.6 KB Created: 2021-03-06 06:46:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f4704f59654d4bbfb9c97c270934611b SHA-1: 6d992462832acc0d1bccae8b88bf06a92c096fba SHA-256: 304af4c72ea3a16da96a52cf202dbd4888f43cd78c551d0b751a08ab31047b91
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://baarspo.ru/wix?keyword=sundance+spa+majesta+owners+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4417543/normal_602f5ecc37e58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368242/normal_601dd60ca5e2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368979/normal_5fe6be816cdfd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418370/normal_60306b60112bf.pdfIn PDF document text
    • https://cdn.sqhk.co/wadebekop/8LWicif/wulifoz.pdfIn PDF document text
    • https://cdn.sqhk.co/minederepa/dtekNil/32490464063.pdfIn PDF document text
    • https://cdn.sqhk.co/votexeruwiti/f5ifXif/81327952760.pdfIn PDF document text
    • https://cdn.sqhk.co/pabelewexo/ibvhacr/vikip.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446643/normal_5fd8386242039.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483870/normal_5fd18a529639a.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/a0cbe4b0-7da3-4f9a-9b81-6834ab51131c/8495097829.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/257d3c95-c765-437f-8af1-132589473217/lepufodorubabuzogizo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fc824a2-4920-4099-84cf-eb21b02ac072/vodavi_starplus_sts_phone_not_ringing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c46f9b0-a5e1-4f9f-81ea-8d916ede7bb9/29140409465.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3206a171-1b9d-48bc-8454-8c8d3a8b25af/effective_leadership_and_management_in_nursing_8th_edition_test_bank_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/864bf738-7b34-46e0-aae3-7013f4193939/89341456465.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1bc4282a-b4d6-4972-82e0-3e4d60601164/how_much_does_aamco_charge_to_rebuild_a_transmission.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef7e2ff7-681c-4208-9905-316ca2ae588d/wosikamexolaroduni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e42255d-aca7-4448-bf60-dd6e770ab3ec/pozonivevedapagofudimonu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0563f8f0-6216-4f6a-a852-08a7e7b4e44a/48519629375.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_off0000d4a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A5 5492 bytes
SHA-256: d995ef5ccf56988701237a3d5dea2ada4b3962b8951fc740b0ca405614e8b1e3
font_01_sfnt_off0000e74c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE74C 10648 bytes
SHA-256: 06a2fe23e15e01079f8190eef8087441c8e872e790f6be121b5e27cc5d93a116

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