Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b601f3dff758984…

MALICIOUS

PDF

77.1 KB Created: 2020-12-05 06:16:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: cf520cae5e07267f1fb95f12b07ad3cd SHA-1: fdb071cd5d6f255bdae47a42927e0c93641a58ed SHA-256: 0b601f3dff7589841ec5ef685393e3c1791687222c4b2a8df2c98bf63d59c14c
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffine.ru/aws?utm_term=auxiliary+verb+meaning+in+tamil+pdf In PDF document text
    • https://zoladikadaxupaj.weebly.com/uploads/1/3/4/6/134635808/wapop.pdfIn PDF document text
    • https://pexulowiseguwuz.weebly.com/uploads/1/3/4/3/134391342/e66bb1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/007689eb-fd42-43c3-b24b-c8e3c71db588/cinema_hd_apk_download_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdcf6602-6549-405e-b570-e37d5e980441/watitojateviwufeji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a981147d-92c0-460d-9943-6244f9646502/77062665287.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7860d01-2337-457e-8962-92aae8e74208/satezolipik.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/cover_letter_for_finance_internship.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/156d3f31-3dda-4467-b54c-16b1345bb5d3/50740222173.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b0994dc-fa7c-45ff-9c0b-bc0818b012be/34322569073.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0dd7d63-57e6-4dc3-aa5c-860f88e95118/jozezemavifesukeximep.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/dositapatudinurexobonav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ef041cb-c469-4ca4-9c7a-9031307b6530/nepujasurigivut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0d2bede-20b7-49a0-9986-9264c4c6c164/16880962375.pdfIn PDF document text
    • https://s3.amazonaws.com/fifuto/savuxavabilugisa.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c09d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC09D 5316 bytes
SHA-256: 720d518d66d85fc1f48ead5478022bacbaee32e1b6d8bacfb19516f1461ac47b
font_01_sfnt_off0000d296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD296 12448 bytes
SHA-256: 32e0c94952d85b9da58b9f96629ad8cdafff454d731ef86c8d346cac7db7da69
font_02_sfnt_off0000f067.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF067 11816 bytes
SHA-256: aa6b833da9478c3f6cf329b35fb857b66eeae1227f5658c2167d72b109dec0a5
font_03_sfnt_off000116bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116BD 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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