Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc5ba6e5ee210e1d…

MALICIOUS

PDF

70.6 KB Created: 2021-02-13 22:17:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 64291a1ceda075f83f6434676f4778f7 SHA-1: 604aeaa24f2e8454663b5c8947c71c230943f005 SHA-256: bc5ba6e5ee210e1d17d49745710ee3673e98113dfae234526c0b8c9ac91dc4f3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://druttle.ru/wix?keyword=johnson+serial+number+guide PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4392861/normal_5ff611f156f7d.pdfIn PDF document text
    • https://cdn.sqhk.co/rosomugimo/Xi92E8O/blue_tie_dye_hoodie_and_sweatpants_set.pdfIn PDF document text
    • https://vemosesagegedow.weebly.com/uploads/1/3/4/3/134312783/c7992fa1238b38.pdfIn PDF document text
    • http://watulexop.iblogger.org/bsc_nursing_3rd_year_syllabus_mpmsu.pdfIn PDF document text
    • http://myvenza.ru/chinese_character_practice_sheet_blanka1oos.pdfIn PDF document text
    • https://cdn.sqhk.co/wajuletixex/XghMgjV/formula_1_2020_final_standings.pdfIn PDF document text
    • http://topdiscount.pro/92092357069b3tr0.pdfIn PDF document text
    • https://vunisanelebori.weebly.com/uploads/1/3/3/9/133999195/sinidaxofemurino.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497109/normal_6018548b66100.pdfIn PDF document text
    • http://cparta.moscow/wukatimopedinisalazaxijrlpu1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418178/normal_6026b6e233cb9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474446/normal_5fe906d41b657.pdfIn PDF document text
    • https://cdn.sqhk.co/gogojelawov/yXdihgh/56406557389.pdfIn PDF document text
    • https://nifogagerosore.weebly.com/uploads/1/3/5/3/135300162/lewevog.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388839/normal_5fdeffbcbe13e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB40 5168 bytes
SHA-256: 8609335158e48a47656e840c59b576a7adc65bc2d16fcc35a12d2fd1b16cf860
font_01_sfnt_off0000dc89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC89 10148 bytes
SHA-256: 0186c248588c0ea1ed05849b7947b73fae594fc7edc675965e758a7c917871e9
font_02_sfnt_off0000ff61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF61 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378