Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cc99da50e25ad27…

MALICIOUS

PDF

68.9 KB Created: 2021-02-24 04:32:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: bd1c35c6c45cae15f3ab4f91e6c0abab SHA-1: 4c64a05aad6fb200b093600881d3e5cdbdd4ef60 SHA-256: 9cc99da50e25ad27ff6190998db2748186c88318634a647262f74b14815e88ab
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://seumenha.ru/123?utm_term=microsoft+project+2016+step+by+step+carl+chatfield PDF link annotation
    • https://cdn.sqhk.co/gagufatemo/pUifxjd/marvel_stadium_seating_ufc.pdfIn PDF document text
    • http://lazerepil.site/85389506960m37ix.pdfIn PDF document text
    • https://cdn.sqhk.co/gudopokobipa/8jcjeyC/verizon_wireless_text_messages_website.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401989/normal_601e70e2283fb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464869/normal_6002ad9478e6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367308/normal_5fd9bc6e2da38.pdfIn PDF document text
    • http://youla-24.cc/tf2_banned_weaponsr344y.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447884/normal_60331bdedb72d.pdfIn PDF document text
    • http://www-sfr-fr-monespace.com/dd_miniatures_wholesalexmfod.pdfIn PDF document text
    • http://scm03.ru/deadlock_recovery_in_operating_system3h12z.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzifixe/iiicIVc/lalafadomomo.pdfIn PDF document text
    • https://cdn.sqhk.co/libewepigux/dnwgiOO/zaxoritobasil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369920/normal_602b23b30da9b.pdfIn PDF document text
    • https://nazutusimeraj.weebly.com/uploads/1/3/4/8/134883567/sudan.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://duresonorapalet.rf.gd/icai_campus_placement_2019_registration_form.pdfIn PDF document text
    • http://dofiruser.epizy.com/15154253710.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/vpn_master_app_for_pc.pdfIn PDF document text
    • http://vowukexakajan.rf.gd/davigofedosopuw.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_off0000cb7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB7E 6048 bytes
SHA-256: 24594ccbbe45a66d1df2dc7deff0bb24acb7997a411b41ae764f8dcd2bedec2f
font_01_sfnt_off0000e023.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE023 10684 bytes
SHA-256: 8e00c407b57512c25ff8494ec1797cd56f5146aa206031b777d7c02a92e8e3cc