Malicious PDF — malware analysis report

Static analysis result for SHA-256 47a7d83e9dce973b…

MALICIOUS

PDF

44.6 KB Created: 2020-11-09 12:53:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: f6a9e9f591bc40d232dc4e13f8b228d7 SHA-1: 6dd1a8e0fc731db569f7d1b5443e78ccb56fea3e SHA-256: 47a7d83e9dce973be3df86ed39ac344f587909ac56f93f9499b0c70214aee398
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://traffking.ru/aws?keyword=stihl+bg+56+c-e+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368221/normal_5f914e13ed4e8.pdfIn PDF document text
    • https://tenabawik.weebly.com/uploads/1/3/2/7/132710661/c8daa7ae.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/01b3d644-ac61-4a18-bc81-2d918fe04e5c/myers_10th_edition_psychology.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e4092ec-e7dc-4302-bd9a-6aff9928c2f3/vonoboxu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f134fdf-59a9-424d-aeaa-080073e25e15/non_material_culture_definition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b984651-0fd9-4dcc-b453-fbc85a0923db/18150067394.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5de7ca3f-76cf-45d7-9249-bfe1640e192e/sapejilufujivapuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8ed53ae-7780-4bc5-8276-318c75ef67d5/77160935713.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58d1820b-14f4-4145-b5a0-325921db225c/sasupu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16ad4129-9fb9-485d-942c-cd986dd0dce3/86108558143.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd91f957-b7a5-4178-8fa8-96878608853b/52292805251.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a9c9d1a-bb69-464d-b4a4-9521cc276784/zololanite.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/240b1e43-0ec8-48fe-a2b2-0c80874ac5d8/outlook.com_sign_up_screen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a869a6a-d64f-4287-af32-7b677725881d/17949312159.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/756f36f2-d960-405a-9c02-a50e0e8d67fc/lunitatalozi.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_off00006097.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6097 5264 bytes
SHA-256: 427514e390bea03b913f5bd81343f17b12236b7e494eaa67dda9e5497eea6041
font_01_sfnt_off00007262.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7262 10696 bytes
SHA-256: c7b7d6fc4926b0c4d9054e7262f838553223ac590afa13b5c4d171c64323ec20
font_02_sfnt_off0000971d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x971D 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

Open this report in the interactive analyzer, or submit your own file for analysis.