Malicious PDF — malware analysis report

Static analysis result for SHA-256 7071c1c65e11a317…

MALICIOUS

PDF

68.9 KB Created: 2021-01-04 01:43:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 9c336e81f36c0744ce3141edfcc65979 SHA-1: cb1c8cc16501ef4313c3cb3997815698871c4b2d SHA-256: 7071c1c65e11a317e0cb7a9db4cb456210eab487e5c2c2780fb5f8c9ef608951
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://cctraff.ru/aws?utm_term=bazaar+kannada+movie+dialogues In PDF document text
    • https://cdn-cms.f-static.net/uploads/4407983/normal_5f941c579108e.pdfIn PDF document text
    • https://cdn.sqhk.co/rogokivika/asjec7e/pirates_of_everseas_wiki.pdfIn PDF document text
    • https://vuderuxedus.weebly.com/uploads/1/3/4/6/134692959/jitipejekerebimeruko.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389603/normal_5fa7a1294e7d1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373987/normal_5fd7d2700b969.pdfIn PDF document text
    • https://cdn.sqhk.co/genamudazunu/hgiePMn/muse_loyalty_programme.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486523/normal_5fc7369b8fe1b.pdfIn PDF document text
    • https://cdn.sqhk.co/lamikolo/HOhbhcJ/jofikomoxodigadefutitafil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426279/normal_5fabb138c82ae.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376879/normal_5ff1377343d07.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465687/normal_5faa3aaa46486.pdfIn PDF document text
    • https://cdn.sqhk.co/lizupasepafu/RJLVCqn/89464954098.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/88047cd6-e707-4584-a218-a21e1c393608/revive_us_again_lyrics_selah.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc4f14ac-f2e3-43b0-9d7a-47ce15a32963/rurukefipiwobazitodenawep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d41f886a-e74d-4b4f-9ecb-a1253cf0eaac/mirth_connect_3.9_user_guide.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_off0000d078.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD078 5368 bytes
SHA-256: 34b2662c7b8163fd060db4c0b0cf325cfb94d32be12d7856d863d0cf51ab9a92
font_01_sfnt_off0000e2b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2B8 10552 bytes
SHA-256: 500b564496f313b5676a8b328dc9f2b1fbdc8788f5795938af49b47c995048a0