Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8dd6f937d1b94e2…

MALICIOUS

PDF

62.2 KB Created: 2021-02-17 11:40:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 41827f55533ce37379cd00ac02e94621 SHA-1: d7a8cecf9a452b6972ac637bff3238a4d01874b5 SHA-256: c8dd6f937d1b94e2829a20224ab9c28bd65689b09513574e8178662868d22ce0
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/wix?keyword=minty+pickaxe+code+free PDF link annotation
    • https://cdn.sqhk.co/velujuvaxal/tQ9hagd/53978764983.pdfIn PDF document text
    • https://cdn.sqhk.co/pigexebobe/ggjjhjf/29749337752.pdfIn PDF document text
    • https://cdn.sqhk.co/wopidevepip/PFZhcTu/4352096189.pdfIn PDF document text
    • https://tizidebiwefixim.weebly.com/uploads/1/3/0/7/130739379/9ebbf612677.pdfIn PDF document text
    • https://cdn.sqhk.co/kisilusotuke/jhihicb/hello_kitty_hair_salon_in_temple_hills_md.pdfIn PDF document text
    • http://originalhallyu.com/kaponakomijuqe84n.pdfIn PDF document text
    • http://reetodo.online/shah_abdul_karim_song_freerb3rn.pdfIn PDF document text
    • http://qiwi-wallet.online/transcription_and_translation_worksheet_biology_answer_key903a2.pdfIn PDF document text
    • http://dadosib.22web.org/divide_by_0_answer_infinity.pdfIn PDF document text
    • https://cdn.sqhk.co/wetilusogaki/ehdhahh/95123438492.pdfIn PDF document text
    • https://cdn.sqhk.co/tuledapozato/njavpge/26607392648.pdfIn PDF document text
    • https://cdn.sqhk.co/xeliwiwogivo/fIie2jb/93393339099.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rozasazi.epizy.com/logo_design_software_free_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/door_frame_details.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/vorufosakekinozupapa.pdfIn PDF document text
    • http://rodigosixe.rf.gd/parsec_android_keyboard_and_mouse.pdfIn PDF document text
    • https://s3.amazonaws.com/winumigutam/18316991036.pdfIn PDF document text
    • http://vimedunofonuw.rf.gd/anexos_simples_nacional_2019.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_off0000b91a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB91A 5176 bytes
SHA-256: a07bbe327380465261dc22ecb86511c5a3f05bee2e3e17581f705f2c14ef6db5
font_01_sfnt_off0000caeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAEB 9716 bytes
SHA-256: bd69af7fde27baf187e1bbd3694e0f48bd13ba16afb84995c48bccde0c27c939