Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d6c0687f352d973…

MALICIOUS

PDF

40.2 KB Created: 2020-11-06 11:59:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: c97c21dd040037a93c549e23cc376289 SHA-1: 1b1c8e36e70e0da1dbb265505ef7da5a0f8b3acc SHA-256: 3d6c0687f352d97303243819add6efb317ed9ae0485b2265151199bc1db15456
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://trafficel.ru/wb?keyword=kentico%20cms%20crack PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4449789/normal_5fa327c321183.pdfIn PDF document text
    • https://gogebuzavoriro.weebly.com/uploads/1/3/2/6/132681212/4153269.pdfIn PDF document text
    • https://vuxofuta.weebly.com/uploads/1/3/4/2/134235669/xawipojuwifefozawuga.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385847/normal_5f94c22aad08c.pdfIn PDF document text
    • https://gadipofonikiw.weebly.com/uploads/1/3/4/3/134390141/6867630.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468537/normal_5fa335a665e39.pdfIn PDF document text
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/8731345.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405644/normal_5fa244d63b84a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374371/normal_5f9c29630270a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379219/normal_5f9633955088b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375075/normal_5f971575363cc.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/5cac2d22-0513-4eb1-b937-897a0367c95c/nvidia_virtual_audio_device_wave_extensible_wdm.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6e8db6e-1f7b-4d77-8f32-5156fc114a7f/42876963207.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a851c857-dc8a-462c-a29d-13248e53cd06/mission_park_school_salinas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92911c4b-3cef-4e39-a42a-fedcbc9979d1/black_desert_mobile_fast_leveling_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eebbeaef-d45c-4968-bbed-33ae8c9491fd/36880403157.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_off0000602c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x602C 4948 bytes
SHA-256: 26abc5a40632d3c656fbecd062ce637a81b6348c547e2a3c34bbd2a7bc549066
font_01_sfnt_off000070e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70E8 10408 bytes
SHA-256: 30023b1b1140a008a14c8187efa8e0c608542efcc7e069f02dc97a21e751378f