Malicious PDF — malware analysis report

Static analysis result for SHA-256 09374ccc32a6de03…

MALICIOUS

PDF

36.9 KB Created: 2020-10-08 15:21:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: b5ff743e7baf836742665abf837e6c02 SHA-1: f755b0be7cd6d158ce3c8a792dd65f88092a3aef SHA-256: 09374ccc32a6de03a9672ed6bca5057afb3716345909035295eac3dd8ab68376
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://ggtraff.ru/pify?keyword=star+wars+embo+action+figure In PDF document text
    • http://juwuwefe.chuckpotterart.net/uploads/1/3/2/8/132814969/kanofovem_titivomoza_ropuwarus_rapemosomana.pdfIn PDF document text
    • http://rixiwupa.disneylandiscreativity.com/uploads/1/3/2/6/132682063/tapazum_sujasugiwadijif_fanukarog_woden.pdfIn PDF document text
    • http://files.kingofcarsandcoffee.com/uploads/1/3/1/4/131406817/1973450.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/428b0af2-e295-4462-b2a3-ab3333774bf1/23310641265.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03104851-a28e-4ad1-98e2-6108a3ca3b8d/52247327762.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cffd54a9-71b5-4dbf-9d44-d524d7baac51/xivodidowanam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/797bec67-c607-4c88-8398-d736175d31e2/mowoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1571097f-55f4-4860-b363-2a0b3a9a8e0b/zilulit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d27e88a4-5af4-4c0b-8d0c-44b3393f20d6/98268324910.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/2228/1636/files/pediru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7745/9363/files/suzuki_q_chord_power_supply.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8104/9260/files/ymxb_meaning_of_m.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000047dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47DC 5388 bytes
SHA-256: f7658fa68c59d75d8350b96fea46cc767368f92e34b1be6a87fc07751e287110
font_01_sfnt_off00005a21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A21 9044 bytes
SHA-256: 5eb3fac673d5a8a4659fa4aa9e0f23a6fc77f4f22cc73726a4883ca9bec78065
font_02_sfnt_off00007927.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7927 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3