Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac2bec064e77ae30…

MALICIOUS

PDF

69.9 KB Created: 2021-03-02 21:07:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: d5d147436a51876757b18de665429945 SHA-1: 93d24bdfe26cc0841a27f2d444c1af2309169b13 SHA-256: ac2bec064e77ae3057a1f2e9c1d8b765ac9130fd6a080defb4e849ec2ca6527d
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://pelibifir.ru/wix?keyword=banana+saver+nz PDF link annotation
    • https://xukovefekafevut.weebly.com/uploads/1/3/0/9/130969731/9509497.pdfIn PDF document text
    • https://cdn.sqhk.co/lanumakefu/9Nakkgd/badminton_smash_techniques_for_beginners.pdfIn PDF document text
    • https://cdn.sqhk.co/mimofeto/ePUkoC5/duvofalipadidemokopusisuz.pdfIn PDF document text
    • https://cdn.sqhk.co/giripiponi/0geEjh3/2905564165.pdfIn PDF document text
    • https://mumizajasaliso.weebly.com/uploads/1/3/4/5/134598274/3234056.pdfIn PDF document text
    • http://veselutut.mywebcommunity.org/how_long_does_the_padi_elearning_course_take.pdfIn PDF document text
    • https://cdn.sqhk.co/wepurodapike/hchegdF/86554256209.pdfIn PDF document text
    • https://vetenejoxo.weebly.com/uploads/1/3/1/3/131379321/dodinisatidetakapum.pdfIn PDF document text
    • https://bivufinemena.weebly.com/uploads/1/3/1/3/131380184/db772e.pdfIn PDF document text
    • https://xoboxevoz.weebly.com/uploads/1/3/2/7/132740619/08009b9c57680.pdfIn PDF document text
    • https://xegugunozom.weebly.com/uploads/1/3/1/4/131482992/1725920.pdfIn PDF document text
    • https://biwewonopegad.weebly.com/uploads/1/3/1/3/131380063/9782792.pdfIn PDF document text
    • https://lolemifazez.weebly.com/uploads/1/3/1/8/131871650/1438243.pdfIn PDF document text
    • https://nubipudovolena.weebly.com/uploads/1/3/4/0/134012318/6071565.pdfIn PDF document text
    • https://nolipugi.weebly.com/uploads/1/3/4/6/134652161/ditojuwa_vejaxuruwaxes_katerero_regibodizab.pdfIn PDF document text
    • https://cdn.sqhk.co/bufutoje/geVSbCj/candy_crush_friends_saga_pc_download_windows_7.pdfIn PDF document text
    • https://cdn.sqhk.co/jofijoju/VShjejb/75164972068.pdfIn PDF document text
    • https://cdn.sqhk.co/pesegozod/jbjdXjb/pizza_snacks_frozen.pdfIn PDF document text
    • https://togutugu.weebly.com/uploads/1/3/4/6/134617883/3d67372.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pabewuvuxaf.onlinewebshop.net/wd_my_passport_wireless_pro_user_manual.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_off0000d688.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD688 4804 bytes
SHA-256: 2dc8982cfb47912f401ddc6e4a6ac6d9af428e9cd7c6e737bc46a1d07503d9ba
font_01_sfnt_off0000e6fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6FD 10544 bytes
SHA-256: 485e306d24722ebfa5ad4dbd1517e0e383d85dfcc85c5b44e273f28b15671e0b