Malicious PDF — malware analysis report

Static analysis result for SHA-256 db81bf22036e2ce6…

MALICIOUS

PDF

67.9 KB Created: 2021-02-26 23:48:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8fe7363bef9e142fb673fd8a0dd78358 SHA-1: 0374eb647b44d3912c59b02575a840259c4aaee7 SHA-256: db81bf22036e2ce6800590aa6df67789e730cf8d3bc4f3e877eab37f2e638582
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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://ponafet.ru/aws?utm_term=lee+ranaldo+broken+circle+spiral+hill PDF link annotation
    • https://femixazate.weebly.com/uploads/1/3/4/3/134363246/soguk.pdfIn PDF document text
    • http://kazimibi.getenjoyment.net/71229537350.pdfIn PDF document text
    • https://sibetufubexab.weebly.com/uploads/1/3/2/7/132712005/c9e4af7.pdfIn PDF document text
    • http://kamikofonem.mygamesonline.org/75693646370.pdfIn PDF document text
    • https://fojiwuduz.weebly.com/uploads/1/3/5/3/135309278/9478539.pdfIn PDF document text
    • https://disadoxamegipu.weebly.com/uploads/1/3/4/5/134527150/4837901.pdfIn PDF document text
    • https://xunujilitaga.weebly.com/uploads/1/3/5/3/135315779/numexep.pdfIn PDF document text
    • https://jewupoma.weebly.com/uploads/1/3/1/4/131437657/bopisiduda-vulomibizeloj-wikowit.pdfIn PDF document text
    • http://mitimewigupito.mypressonline.com/49030461933.pdfIn PDF document text
    • https://funoridarudaru.weebly.com/uploads/1/3/5/3/135304061/ca406758163c74.pdfIn PDF document text
    • https://fefodenajefive.weebly.com/uploads/1/3/1/4/131437461/173526.pdfIn PDF document text
    • https://gojesewemuvi.weebly.com/uploads/1/3/2/6/132681304/4263881.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fumebuz.rf.gd/matlab_toolbox_download_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gozifep/cypher_neo4j_cheat_sheet.pdfIn PDF document text
    • http://jeborawaleko.atwebpages.com/which_justices_voted_for_the_majority_in_brown_vs_board_of_education.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_off0000ccbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCBE 5308 bytes
SHA-256: d01d08cf3902a44b2cee455fc65d72e21bac601a0fe5086529e14e0cc3d6ec92
font_01_sfnt_off0000deba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEBA 10704 bytes
SHA-256: 135a99ff5faa81e6798ed208ef3048bd2d2e98fb0478d29a7f105b90c7d98f15