Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dade88bdcc3db1f…

MALICIOUS

PDF

62.3 KB Created: 2021-03-01 02:29:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: ae0dedac5c7fb1e2ccee7665503e7a43 SHA-1: eeb0560d138d3186c8b5f13653870984104e8e8e SHA-256: 7dade88bdcc3db1fce8590a71e6814786270b49629e796876564ef6e5c384747
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains a large number of external links to various domains, many of which appear to be disposable or used for SEO link farming. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or distributing further malware. The embedded URLs suggest a tactic to lure users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9421

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 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
  • 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://bologen.ru/award?keyword=what+is+the+main+theme+of+the+wonderful+wizard+of+oz PDF link annotation
    • https://cdn.sqhk.co/vibebexez/kifqggL/wolefadaxezinudumudikid.pdfIn PDF document text
    • https://cdn.sqhk.co/dokukavifig/8l2igfR/kiwonibisesudogapepitod.pdfIn PDF document text
    • http://hookup154.online/what_kind_of_oil_does_a_2008_rav4_takezfi0f.pdfIn PDF document text
    • http://fitokaps.xyz/roxevanukibero66vs.pdfIn PDF document text
    • http://frukt.fun/59744682617vtdso.pdfIn PDF document text
    • https://cdn.sqhk.co/ruxunafifu/if7yhiT/side_pocket_arcade_game.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412174/normal_5febe6772aa48.pdfIn PDF document text
    • https://gerogebu.weebly.com/uploads/1/3/1/6/131637886/9382784.pdfIn PDF document text
    • https://durunefa.weebly.com/uploads/1/3/4/7/134712847/bututavopoz_xovof.pdfIn PDF document text
    • https://cdn.sqhk.co/limizolaxa/ggTVMhc/fastlane_road_to_revenge_cheat_codes.pdfIn PDF document text
    • https://sapobukemofox.weebly.com/uploads/1/3/5/9/135974899/386669.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366022/normal_5fe4e1ce7c13b.pdfIn PDF document text
    • http://nicechange.space/bolifumegkhl2.pdfIn PDF document text
    • https://zokesafan.weebly.com/uploads/1/3/0/7/130775675/jikimix-gawikitib.pdfIn PDF document text
    • https://cdn.sqhk.co/vusutesilo/cLhdFhc/71034085055.pdfIn PDF document text
    • http://polikarmonolit.ru/velamufozavavawubuwan4z.pdfIn PDF document text
    • https://kevanosum.weebly.com/uploads/1/3/0/9/130968994/7090583.pdfIn PDF document text
    • https://zififawatef.weebly.com/uploads/1/3/4/3/134384507/xefaber.pdfIn PDF document text
    • http://kukushka.space/cyborg_movie_freec1f85.pdfIn PDF document text

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