Malicious PDF — malware analysis report

Static analysis result for SHA-256 60bf433c3b1be2d0…

MALICIOUS

PDF

64.3 KB Created: 2021-02-11 03:56:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: dce277a971f6779468bde01fdc16d940 SHA-1: 28331b388832ed2aff20e20179d2d1ff68778725 SHA-256: 60bf433c3b1be2d07b0e47e679ea95dc3fd8993b96aa295faf14e2766ab1053c
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://baarspo.ru/123?utm_term=dewalt+work+boots+steel+toe PDF link annotation
    • https://cdn.sqhk.co/xojelumegasi/VgcGjdA/28211431906.pdfIn PDF document text
    • https://cdn.sqhk.co/ribobujir/b8hdZjh/metepunidodolagoronil.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367643/normal_5fedc92d7f6ee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383451/normal_5ffc9dcc891ec.pdfIn PDF document text
    • https://duwujesipegon.weebly.com/uploads/1/3/4/8/134883919/1303130.pdfIn PDF document text
    • http://ionatr.fun/12th_new_syllabus_tamil_guidewglly.pdfIn PDF document text
    • http://findattime.com/annus_mirabilis_poemwkk38.pdfIn PDF document text
    • https://cdn.sqhk.co/mapetidul/cghcfd7/2643226066.pdfIn PDF document text
    • http://hook-up.fun/substitution_method_for_solving_recurrences_examplesoijr2.pdfIn PDF document text
    • http://cafe-cok.ru/kb2007_bed_framemd6zb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423430/normal_5fda4b3a45f80.pdfIn PDF document text
    • https://fadefewili.weebly.com/uploads/1/3/4/3/134316521/6662501.pdfIn PDF document text
    • https://cdn.sqhk.co/rubogomuweme/gIjd1hd/free_crossword_puzzle_apps_for_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/vupapevixu/Ijeigji/dhoom_machale_song_lyrics_translation.pdfIn PDF document text
    • http://frut-tree.site/baixar_hack_whatsapp_ultra_v_1.5pvpi7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000bfd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFD9 4972 bytes
SHA-256: 117da2a899c77de196dbc29c65678a4cd0680057875445bc97c527f67a38911c
font_01_sfnt_off0000d0e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0E7 10040 bytes
SHA-256: 605658b84798bb6e212b07ad4a4009552d27e7e70966ded705b5cbecec887321