Malicious PDF — malware analysis report

Static analysis result for SHA-256 3026ba0485753379…

MALICIOUS

PDF

40.8 KB Created: 2020-11-07 09:03:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: c60acd05196239057f0ced025e498ee3 SHA-1: ff2bc797d76ba30a72fd820c6a213b23186d1751 SHA-256: 3026ba0485753379239f98557830a52516de47d4850807bb1ded25b4dbf6e771
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://traffset.ru/aws?keyword=the+nez+perce+tribe+clothing PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387040/normal_5f92679953384.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377100/normal_5f9995dfc27f8.pdfIn PDF document text
    • https://sudigosapo.weebly.com/uploads/1/3/4/4/134456465/letojuzanigax.pdfIn PDF document text
    • https://worozimovazez.weebly.com/uploads/1/3/1/4/131406108/vamidosi-mevakitusoxosa-zozigeg.pdfIn PDF document text
    • https://mawepalutolura.weebly.com/uploads/1/3/4/0/134040672/bf26178d.pdfIn PDF document text
    • https://bitebizato.weebly.com/uploads/1/3/4/5/134583528/guribe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://liwotorur.files.wordpress.com/2020/11/19323391968.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74d53a34-ce45-445d-9468-75ed08f3e86b/kejepurivir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c1d522c-8ca6-4197-9e0f-fc9a5fce1577/panasonic_sa_ht700.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ff897a8-af59-4f63-bd80-4cbd9561e94b/83223626655.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d087c460-e9cd-424e-9e99-956a5b719583/gesher_yehuda_school.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fed657f6-69fc-447b-a40c-4666976cc5f4/nonedimixajipipedu.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_off00006154.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6154 4948 bytes
SHA-256: a0cf8e909d05b0c1f53fe6a757215b0a343ba38a08f35eb9e19e64b7eaf1ac85
font_01_sfnt_off00007229.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7229 10492 bytes
SHA-256: c549eae9dc411eab57f7bbe570c7baa41d7fffdd627a558f94b80d169681e6d7