Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5649c0e5b7941f1…

MALICIOUS

PDF

72.4 KB Created: 2021-02-27 05:29:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 694a82cd96336367a3afc08c59f67f42 SHA-1: f225a1f1a41947b834b7282f502a6bba80f094f3 SHA-256: f5649c0e5b7941f147e4e4ec8ab6ad2ddb452fa4342e8419516a3e09333208f0
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/award?keyword=the+way+of+the+master PDF link annotation
    • https://cdn.sqhk.co/mibemofega/hegjOjh/voxobovogetevik.pdfIn PDF document text
    • https://rodadeta.weebly.com/uploads/1/3/5/3/135391988/8352150.pdfIn PDF document text
    • https://ginimowawogob.weebly.com/uploads/1/3/4/7/134753870/tezejik.pdfIn PDF document text
    • http://swiss-gear.shop/cobol_6._1_programming_guideovv2v.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/hamjgiX/wivujujed.pdfIn PDF document text
    • http://vittorguxx.site/15638239214lmigh.pdfIn PDF document text
    • https://bimefitovaj.weebly.com/uploads/1/3/1/4/131437299/4878131.pdfIn PDF document text
    • https://cdn.sqhk.co/vixemujomu/6gdjj0m/xufobenuzoramojemokitiv.pdfIn PDF document text
    • http://itdiscount.pro/81312229084wvwlu.pdfIn PDF document text
    • http://bbflowers.net/tariruzavoiojt4.pdfIn PDF document text
    • https://jeximikukadolo.weebly.com/uploads/1/3/1/6/131636734/9540acd.pdfIn PDF document text
    • http://itfamily.info/rewovetoxalimuufyvo.pdfIn PDF document text
    • http://ing-jobs-opportunities.com/o_mio_babbino_caro_lower_keyt1ccw.pdfIn PDF document text
    • https://bowonalixatan.weebly.com/uploads/1/3/5/3/135347428/8f7702669a.pdfIn PDF document text
    • https://cdn.sqhk.co/ferobisuw/hjjgxjf/54738185819.pdfIn PDF document text
    • http://morj.space/firetrap_trunks_size_guidevgkrs.pdfIn PDF document text
    • https://gulipuzajetag.weebly.com/uploads/1/3/5/3/135397689/bidubok.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bosadubarelazu.rf.gd/nesedivozaneso.pdfIn PDF document text
    • http://vumebef.epizy.com/mepapeporujebutumuziliwuj.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_off0000dfd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFD1 5120 bytes
SHA-256: dd77e92722d999603540d94a6ecfeae5b8cbcb7a54818889ff0e044e5f54fa11
font_01_sfnt_off0000f12c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF12C 10396 bytes
SHA-256: a239138dfc7cfa9d1837054fee46ba48b663130d5c8742fe422af2cddeaa7193