Malicious PDF — malware analysis report

Static analysis result for SHA-256 7392a58f5aa19766…

MALICIOUS

PDF

43.7 KB Created: 2020-11-06 01:07:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: e49068bcdc79fb7aef0c2ded3d55dd95 SHA-1: 72aca8fb8dd7ebddcadecbd964ad64600e60c8af SHA-256: 7392a58f5aa197666ac2b0610bf20fb463b8e7d128275a3a4c73d464c9395a33
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://trafftec.ru/aws?keyword=keyman+the+hand+of+judgement PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368972/normal_5f8fa40570e51.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417049/normal_5f9b3acb69b8b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367631/normal_5f95d1340db67.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393346/normal_5f987069aa82d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365634/normal_5fa349ca2df12.pdfIn PDF document text
    • https://gexumuvebevo.weebly.com/uploads/1/3/4/3/134312536/3e01e0a11cd02.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369660/normal_5fa3098d23db5.pdfIn PDF document text
    • https://dumejolizaxoko.weebly.com/uploads/1/3/0/8/130814858/vexuvotiveritazet.pdfIn PDF document text
    • https://kokexofagisukop.weebly.com/uploads/1/3/2/7/132710589/buxigamexugegupejina.pdfIn PDF document text
    • https://vomalokigalexa.weebly.com/uploads/1/3/4/3/134329787/d3d1734a3d9c001.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417824/normal_5fa2e84168082.pdfIn PDF document text
    • https://dokodajibebabek.weebly.com/uploads/1/3/2/3/132302773/5902193.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/bd9075b9-5b1c-49b8-a9ec-e87a5fdb240f/22720117795.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94e4b555-d82b-4676-be8d-3f1bc63ff2f9/dikeratanutelojijam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39446d77-9c85-4987-adc9-777fa59ad8d6/star_wars_bloodline.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000579e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x579E 5164 bytes
SHA-256: 50df80f918fa23900357ac2e0177ecfbf7af9de834c7d31698cd5f18dd4c3d1a
font_01_sfnt_off00006925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6925 10376 bytes
SHA-256: e960078fd2b652877760ebe5a1b2b4b6415672c7d3884ecadcf91e964412fa67
font_02_sfnt_off00008cbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CBE 16100 bytes
SHA-256: b0627a486dcaeee434fe5ad07bf169d6615d29e40b70de469c6017e3e4f2a7cc