Malicious PDF — malware analysis report

Static analysis result for SHA-256 7084ac843a875795…

MALICIOUS

PDF

74.0 KB Created: 2021-01-28 06:30:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 519e460469a44180ef9f9d83014f5080 SHA-1: 2a803a8fafde7c13170afa177c53dfad486e54ea SHA-256: 7084ac843a8757956fa8826ae11d19dc893a56b6a78c142f19b8c638f4f986a4
146 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 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://baarspo.ru/aws?utm_term=cipherlab+1560p+manual PDF link annotation
    • http://constructionhouse.info/mobexuzegevuwary7t7x.pdfIn PDF document text
    • http://top-salez.site/kujumafmuwvk.pdfIn PDF document text
    • http://prequester.online/453366991804vyr.pdfIn PDF document text
    • https://cdn.sqhk.co/manowipete/igjgwPZ/81979338069.pdfIn PDF document text
    • http://secret-empire.ru/barbie_rapunzel_doll_amazonl71ds.pdfIn PDF document text
    • http://sreda.city/loxosilolawedagk5e6v.pdfIn PDF document text
    • https://cdn.sqhk.co/kelopifagisu/giapPjf/7130394897.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415962/normal_5ff92ac9b8af3.pdfIn PDF document text
    • https://cdn.sqhk.co/xogudililavo/giVihgj/gizeviwekutixemij.pdfIn PDF document text
    • http://kawlites.online/62753712003vps36.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369781/normal_5fd84c33d3aed.pdfIn PDF document text
    • https://cdn.sqhk.co/geroterunetu/e2hcfa7/brooklyn_bridge_hd_wallpapers_1920x1080.pdfIn PDF document text
    • https://cdn.sqhk.co/dusimefosix/iEOgcig/22962992962.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/mulerux/piano_notes_cheat_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zamemigojat/kabofawituv.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_off0000d804.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD804 5400 bytes
SHA-256: b5eae00f0683d4408a57a51d5ebc19f9fb12d87db3c863e0378561fcafcd2e88
font_01_sfnt_off0000ea2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA2D 15800 bytes
SHA-256: 34663aef97620b0e3ae6707f466fc19d381426c66afcdaad64c9f9f9cf1aa508