Malicious PDF — malware analysis report

Static analysis result for SHA-256 0862990b9d9a87df…

MALICIOUS

PDF

69.5 KB Created: 2021-02-20 01:36:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 39bca89ce05655de4d9e854a8bd7f4f9 SHA-1: 956d99843dcebec0ef1d56a0affeaaed266fc6de SHA-256: 0862990b9d9a87df8ef9bd43fe55b50b0b702d6699b796794bb4bbb8736a1556
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/wix?keyword=ncdpi+review+of+accommodations+form PDF link annotation
    • https://cdn.sqhk.co/bunewonu/gdCiegh/nfl_tv_schedule_sunday_sept_15.pdfIn PDF document text
    • https://gazafakapudon.weebly.com/uploads/1/3/4/3/134345815/a9ae61e78c583.pdfIn PDF document text
    • https://mazakodavowur.weebly.com/uploads/1/3/4/3/134335882/3671041.pdfIn PDF document text
    • http://giboxibefelas.22web.org/ei_online_reporting_phone_number.pdfIn PDF document text
    • https://cdn.sqhk.co/pedidagow/phihhge/stickman_dismounting_game.pdfIn PDF document text
    • https://cdn.sqhk.co/vajirasavuz/jmBjjFq/jomuwawexefawa.pdfIn PDF document text
    • https://cdn.sqhk.co/bilexodofose/egjElgg/msi_afterburner_overlay_not_working_rage_2.pdfIn PDF document text
    • https://bapuporodotuxo.weebly.com/uploads/1/3/1/3/131381531/giduteva-lemosogakajidu.pdfIn PDF document text
    • https://cdn.sqhk.co/kazamepa/JRfzigw/46791022944.pdfIn PDF document text
    • http://tizigigukaj.22web.org/31178906070.pdfIn PDF document text
    • https://cdn.sqhk.co/rewaloxuruvu/iyiahec/critter_escape_mod_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bedawisanono.epizy.com/83773993782.pdfIn PDF document text
    • http://kiralemosokeze.epizy.com/89382984627.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_off0000c67f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC67F 5392 bytes
SHA-256: 1f1e99da9abe42239b20b455cf95781f8583ff9e3bb2ae918cd432e377e2ac47
font_01_sfnt_off0000d8dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8DC 15704 bytes
SHA-256: e65f1817e93439b0b6ccea68cd2627c6a236c9b2c784ae639def179df224ec0a