Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ac2acdb4e8e183c…

MALICIOUS

PDF

72.7 KB Created: 2021-02-16 17:41:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7c1002bad78b3a84fc89b2417a28613a SHA-1: 5a9f4da340930cd1230a4bbb0c7899d7f59339f6 SHA-256: 7ac2acdb4e8e183cbb6a1e04ae4531c79ea91cd7c6cf0177419e7d12bb84f1f4
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://seumenha.ru/wix?keyword=iphone+11+giveaway+real PDF link annotation
    • https://kevulukopefot.weebly.com/uploads/1/3/1/4/131453006/konoxife-kemolowokanapap.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375070/normal_60099ac622933.pdfIn PDF document text
    • https://towizitubozabo.weebly.com/uploads/1/3/5/4/135400713/7495b06e9f.pdfIn PDF document text
    • https://kivogumit.weebly.com/uploads/1/3/1/0/131070776/puxanevakokog.pdfIn PDF document text
    • http://kokilubowo.22web.org/fabebozegexoza.pdfIn PDF document text
    • https://lokudepapina.weebly.com/uploads/1/3/5/3/135325929/ffc2b8a68df9.pdfIn PDF document text
    • https://nibebelijatod.weebly.com/uploads/1/3/1/4/131452937/vatawosadixofa_towutuwidamenez_milumepuzilito_lutesibetaguxuf.pdfIn PDF document text
    • http://nebetejetagume.iblogger.org/gasaberewolebadoxip.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422133/normal_5fcdfefa7fb18.pdfIn PDF document text
    • https://barijenevedi.weebly.com/uploads/1/3/1/4/131438420/galaxemakuxi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374518/normal_60129543e77c5.pdfIn PDF document text
    • https://xibupofuku.weebly.com/uploads/1/3/5/3/135306475/7221504.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/wozowuledij/31301457947.pdfIn PDF document text
    • https://s3.amazonaws.com/gimisorixosu/32851474300.pdfIn PDF document text
    • http://libogesozi.rf.gd/22447245109.pdfIn PDF document text
    • http://mojajigutomikew.rf.gd/easter_bunnies_images_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_off0000e04e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE04E 5148 bytes
SHA-256: 41c4ebbaed4b340f25d13056fff65647186b0b8e5a270dbbe68c67680f84ce08
font_01_sfnt_off0000f1f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1F5 10412 bytes
SHA-256: eaa3ef068c008048e0b3bfc81ee53d90d41ccc46ba0ac086009ffd169c7125e6

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