Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c0c4ce3ee97aaa4…

MALICIOUS

PDF

73.1 KB Created: 2021-02-10 09:57:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 487b78a2a23ce940b37e371645289042 SHA-1: acbabf9547aab436389356af2568733c1712f619 SHA-256: 8c0c4ce3ee97aaa4d6b6f6d743cf168534096f2a7874298129ffc7fe68f33265
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://bologen.ru/aws?utm_term=sssniperwolf+funniest+kid+test+answers+2 PDF link annotation
    • https://cdn.sqhk.co/rilowikapaz/hbiiaAn/94924118637.pdfIn PDF document text
    • https://cdn.sqhk.co/karopepagu/ciufmjx/dream_daddy_mat_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/sifujubagis/jaDPQih/zeds_dead_white_satin_bpm.pdfIn PDF document text
    • http://austritkfa.com/fisica_cuantica_y_diosgojmg.pdfIn PDF document text
    • http://fezibinuzot.iblogger.org/80477139093.pdfIn PDF document text
    • https://xigeworimejol.weebly.com/uploads/1/3/1/4/131483719/bufotize.pdfIn PDF document text
    • http://letonibi.iblogger.org/rekolafi.pdfIn PDF document text
    • https://bupafenanibud.weebly.com/uploads/1/3/4/0/134042845/dobolileja.pdfIn PDF document text
    • http://future-techno.ru/tutorial_carding_androidbitv7.pdfIn PDF document text
    • https://cdn.sqhk.co/bawusipa/yig3jj4/super_bomberman_r_switch_review.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sobogewas.epizy.com/dakhla_surf_report.pdfIn PDF document text
    • http://zujexig.epizy.com/automation_anywhere_enterprise_control_room_manual.pdfIn PDF document text
    • http://jawedujap.rf.gd/65772507663.pdfIn PDF document text
    • http://taluzeze.rf.gd/free_template_for_debut_invitation.pdfIn PDF document text
    • http://melewurimepuja.rf.gd/25570070953.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_off0000e071.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE071 5428 bytes
SHA-256: f6b489aa1551391616bb5c53268088d06480b22e6fa2c6e779603439a0fc0c69
font_01_sfnt_off0000f305.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF305 10744 bytes
SHA-256: 255fb0dc5f640478d072bc839764ffd5384e2501f2aa4969f439630aedde8b5b