Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bdb5325d878ac0e…

MALICIOUS

PDF

65.1 KB Created: 2021-01-31 10:10:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 468d38d8784010785d6c83ef2e15b9f2 SHA-1: b909c9265e8a45f89b27ec816048513293a6b995 SHA-256: 1bdb5325d878ac0e0940dc601fcfa1520552385f7cc69154df649c2f22defc4f
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://bologen.ru/shook?utm_term=arcade1up+pac+man+custom+riser PDF link annotation
    • https://gufobetatogeset.weebly.com/uploads/1/3/1/0/131069923/zizuzimefatubox.pdfIn PDF document text
    • https://vakilonote.weebly.com/uploads/1/3/1/3/131382032/fulipi-kufusaxozug.pdfIn PDF document text
    • http://korecos.ru/fodizikipw1id.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489976/normal_5ff61ff4d16c3.pdfIn PDF document text
    • http://naturmilans.fun/15433629910w33ou.pdfIn PDF document text
    • http://bella24.xyz/33270545744ulpbf.pdfIn PDF document text
    • https://dolibaradodusop.weebly.com/uploads/1/3/4/5/134595809/adc8398db8de.pdfIn PDF document text
    • http://boost-shop.xyz/309260127324kmzj.pdfIn PDF document text
    • https://povewagefafede.weebly.com/uploads/1/3/4/8/134888055/7667870.pdfIn PDF document text
    • https://nanuleseja.weebly.com/uploads/1/3/4/0/134012971/gegazuxideroroxu.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvepelela/YWmgept/poly_poly_art_puzzle_online.pdfIn PDF document text
    • https://cdn.sqhk.co/dikozogub/dHjikih/mini_golf_near_montrose.pdfIn PDF document text
    • http://xsafak.com/crimson_tidestallion_guide9qfzc.pdfIn PDF document text
    • http://instgrmmverifiedbadge.com/79909674616w6g3n.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/jagux/38765475800.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/chrome_for_windows_7_pro.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/97698970353.pdfIn PDF document text
    • https://s3.amazonaws.com/wutisigila/jack_sparrow_song_piano_sheet_music.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_off0000c071.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC071 5228 bytes
SHA-256: 035e4053c61dd9f7a80b324d55b8b4362f50358e101d57a888efdd991957e371
font_01_sfnt_off0000d22c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD22C 10416 bytes
SHA-256: 67aa47d82abc444ebe0ec0ada0eb8470c6ea619fca46acccca287eda59859a85

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