Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e1373701b806fff…

MALICIOUS

PDF

73.8 KB Created: 2021-02-18 00:29:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 25ec7c4d642f7b32d5a66eb23eb9d647 SHA-1: 6a36b8fab10b624be7b86669ee3c87ca9abb47cb SHA-256: 2e1373701b806fffc6541e5b1261ae3c81fdd472d6391ab3ab1d9db531421909
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://maypoin.ru/wb?keyword=what%20is%2030%20under%2030%20reddit PDF link annotation
    • https://wigabededonekan.weebly.com/uploads/1/3/0/7/130740374/8b4ee3427.pdfIn PDF document text
    • https://mijevofere.weebly.com/uploads/1/3/1/6/131606011/pumasabuzexe.pdfIn PDF document text
    • https://davabodijesofid.weebly.com/uploads/1/3/4/4/134474123/2219673.pdfIn PDF document text
    • https://jadojojipolukot.weebly.com/uploads/1/3/5/3/135337887/waboxabijovo-vubike.pdfIn PDF document text
    • http://prosale.company/kofineperugebigowufezuveq2alj.pdfIn PDF document text
    • https://cdn.sqhk.co/pazakazagoz/jchaidw/fiwekakupowogubavijujoso.pdfIn PDF document text
    • http://vidclips.design/administrao_pblica_para_concursos_renato_feniliayxtd.pdfIn PDF document text
    • https://losiweso.weebly.com/uploads/1/3/1/3/131380476/kajebub.pdfIn PDF document text
    • https://cdn.sqhk.co/fazejitev/ictbjeE/korexogimupusaderipusunew.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/mexijegedakol/awas_yojana_form_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/wemaz.pdfIn PDF document text
    • https://s3.amazonaws.com/befafuni/quiz_on_periodic_table.pdfIn PDF document text
    • https://s3.amazonaws.com/solonebosop/beco_baby_carrier_gemini_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/damerirazib/hallelujah_pentatonix_sheet_music_satb.pdfIn PDF document text
    • https://s3.amazonaws.com/luborinizu/boxusadositabes.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/jorumojivuv.pdfIn PDF document text
    • https://s3.amazonaws.com/vokeri/zipuderegurokodozizez.pdfIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/79373936995.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_off0000e2fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2FC 5200 bytes
SHA-256: 0ac3068d9323c74d07535b7a9801119d34518804de5a090b0631aacb1285561d
font_01_sfnt_off0000f4a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4A7 11376 bytes
SHA-256: 611263584bf0baf5bbe23c1f1da33f782d9ded6db67bb75d56a0806a70610a54

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