Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dd97201d92a3065…

MALICIOUS

PDF

73.9 KB Created: 2021-02-28 12:50:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: fc854fe4427b7ace9ec307b3e442d31d SHA-1: d6274fc0be887e01731757f1c3fc9f272effc9d6 SHA-256: 7dd97201d92a3065df87e41b0b9e7063b26d2aaa04d247c12623486751d590d8
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://leonvi.ru/strik?utm_term=insinkerator+evolution+prestige+installation+instructions PDF link annotation
    • https://cdn.sqhk.co/xelajuwodaf/gjRjajh/sad_monkey_face_meme.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401703/normal_5fcccd6015aed.pdfIn PDF document text
    • https://wibidonegaka.weebly.com/uploads/1/3/4/5/134599285/goverowekogaw_vibelemizuwi_jevosim_sezilux.pdfIn PDF document text
    • http://tipofeliluget.medianewsonline.com/38289058785.pdfIn PDF document text
    • https://cdn.sqhk.co/peluxisomex/8phdz1o/34221203879.pdfIn PDF document text
    • https://gitikaru.weebly.com/uploads/1/3/4/9/134901111/dojuzepawet_gurunisek_xozalibowu.pdfIn PDF document text
    • https://cdn.sqhk.co/wuxobilan/ghZihjj/wazipabuwuwuperifixegor.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451352/normal_60225496b21cf.pdfIn PDF document text
    • https://cdn.sqhk.co/kurutuxerodi/UjcN9ib/tiki_island_king_torch_stake.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459929/normal_6032c34a3125c.pdfIn PDF document text
    • https://rexirarilabe.weebly.com/uploads/1/3/2/6/132681411/4721994.pdfIn PDF document text
    • https://bazeliwelari.weebly.com/uploads/1/3/1/8/131857734/bd0c18b53663cd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477886/normal_5fe18c68d4467.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/levovod/4645811858.pdfIn PDF document text
    • http://golokelu.rf.gd/gb_whatsapp_6._50_uptodown.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_off0000e4e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4E7 5160 bytes
SHA-256: bea198972f71168c35d9a8d9892a37bcd8477af3ebc209f03e752a8df5315265
font_01_sfnt_off0000f697.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF697 10408 bytes
SHA-256: 6e994566bcb0f2874c816b73eb2c1fd27b43b1d12a40e7d18aaccabe12b6329b