Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e2a08cabdfe29e1…

MALICIOUS

PDF

72.1 KB Created: 2021-02-17 13:58:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9e128e5bdfff57fc5ace5a708da82e21 SHA-1: 8ae0c46ae3a1eca898cc6067e65cc0ac7ee18002 SHA-256: 0e2a08cabdfe29e18391734648537df0682e258de55c94e829416421c1e13bff
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://maypoin.ru/wix?keyword=human+physiology+from+cells+to+systems+7th+edition+pdf+free+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4451352/normal_602253e8675c5.pdfIn PDF document text
    • https://fagedudadisex.weebly.com/uploads/1/3/0/8/130874641/336a57220f6d0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370275/normal_5fe169d27adf1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484609/normal_6013ea08c4c91.pdfIn PDF document text
    • https://terajorekefiko.weebly.com/uploads/1/3/1/4/131408772/286777.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421207/normal_5ff42bebdfc69.pdfIn PDF document text
    • http://mirror-x.org/aadhar_card_by_aadhaar_number_online3q6tx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489440/normal_5fccd4050662c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502188/normal_601ed6f7efe8a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420745/normal_60111aa0291db.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456699/normal_6012f8646c3ce.pdfIn PDF document text
    • https://jinikegubu.weebly.com/uploads/1/3/4/8/134873825/f6233513927.pdfIn PDF document text
    • https://movediwifed.weebly.com/uploads/1/3/2/6/132695881/melixadirifuwu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422168/normal_5fc8d672d23f7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/ponivotigegepub/clumsy_ninja_new_version.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/40024402488.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_off0000da3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA3E 5804 bytes
SHA-256: 07dbe04815ae532d88e0ccc9d74f731ed89f10319dfb6c4a02cd63da999b067a
font_01_sfnt_off0000edf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDF5 10784 bytes
SHA-256: dac709250c8dd1589901120d95b31ffd07af2267643bd19817a472eaab141fef

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