Malicious PDF — malware analysis report

Static analysis result for SHA-256 465c0b9803bb5ea3…

MALICIOUS

PDF

72.6 KB Created: 2021-02-20 17:42:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 72bc2d263519781dfd19d7bc0d15d054 SHA-1: 9554577a02838a3d3ae3d753a7a5b0ec80974497 SHA-256: 465c0b9803bb5ea3e39171658b9238e76f49f8bab71b841bfbe8cbc9a20d0015
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=black+and+decker+24+volt+mower+battery+charger-+cmm1200 PDF link annotation
    • https://cdn.sqhk.co/fasixazijaz/qgezGnr/weed_killer_spray_for_lawns.pdfIn PDF document text
    • https://pifujikis.weebly.com/uploads/1/3/4/8/134875168/239308.pdfIn PDF document text
    • https://cdn.sqhk.co/kedetofido/8Sb7jeH/kelly_clarkson_dare_you_to_love_me_lyrics.pdfIn PDF document text
    • https://cdn.sqhk.co/tukawezezo/aqEhfhi/67470199003.pdfIn PDF document text
    • http://br1.red/xukezejepewujiwerebwrfsc.pdfIn PDF document text
    • https://kezexawu.weebly.com/uploads/1/3/0/8/130814062/166960.pdfIn PDF document text
    • https://cdn.sqhk.co/wezufunin/jjgVUib/musilikozojo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484375/normal_5ff38bfd829d8.pdfIn PDF document text
    • https://cdn.sqhk.co/mamevugixej/hd5jbih/wadugularazusolag.pdfIn PDF document text
    • https://tipuzinugex.weebly.com/uploads/1/3/2/6/132682040/459807c1e705.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466172/normal_5feb3329c5537.pdfIn PDF document text
    • https://cdn.sqhk.co/bitizulokiva/ifwwnig/tudezuwijimope.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456143/normal_602883ca72100.pdfIn PDF document text
    • https://tulivugid.weebly.com/uploads/1/3/4/6/134607321/nikisiraposulaf.pdfIn PDF document text
    • http://italiabeach.space/cen-tech_digital_multimeter_95683_manuald2988.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402481/normal_5fd3b1f1630bb.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/mexesazaxasa/answer_key_corporate_finance_10th_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/brother_printer_dcp-_t700w_driver_free.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_off0000dc33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC33 6128 bytes
SHA-256: 5d5a357b4bcfdabca86266e85fd4d0817cd08eefc1095a9fd711e7d4c99ceb38
font_01_sfnt_off0000f117.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF117 10560 bytes
SHA-256: 9160891590f2fdf81e9747badca3c5edd0e73e74e5d5f49172aff830c3d9b269

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