Malicious PDF — malware analysis report

Static analysis result for SHA-256 8891428ca29826eb…

MALICIOUS

PDF

68.9 KB Created: 2021-02-25 05:09:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: dadb5810df3c5a630c5bf8ee01edbde1 SHA-1: 6c6ece8bc8018c07c7746f31faaaf6dc99e76c09 SHA-256: 8891428ca29826eb0831a303a0cd3af7e027efd43b5db8539ef54f4da4758fc7
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://baarspo.ru/award?keyword=avatar+comics+imbalance+download PDF link annotation
    • http://gedadekenoz.mywebcommunity.org/fojogovugim.pdfIn PDF document text
    • https://zotolibufu.weebly.com/uploads/1/3/1/0/131069899/68becd.pdfIn PDF document text
    • http://poxijirubulemax.22web.org/cactus_guide_echinopsis_calochlora.pdfIn PDF document text
    • https://xesofizagib.weebly.com/uploads/1/3/4/4/134491847/wuzevekegej-pusilitotiruvi-nikerarobuw.pdfIn PDF document text
    • https://xateboduf.weebly.com/uploads/1/3/1/4/131483383/fabobo_febiwodafanewa_degebuwudig_rudimalil.pdfIn PDF document text
    • https://wojadamizaxit.weebly.com/uploads/1/3/2/6/132681796/e8c93691b220920.pdfIn PDF document text
    • http://nogurufegu.mygamesonline.org/wixubabatoxijor.pdfIn PDF document text
    • http://vowujebotoza.mywebcommunity.org/141797018.pdfIn PDF document text
    • https://wirorovikematu.weebly.com/uploads/1/3/1/0/131071137/risovug.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xutomoxu/focus_group_facilitation_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/60876901640.pdfIn PDF document text
    • http://zujoragog.epizy.com/kixaw.pdfIn PDF document text
    • http://xemaneruweveji.epizy.com/trig_graphs_worksheet_answer_key.pdfIn PDF document text
    • http://zazujipediwa.rf.gd/bakaw.pdfIn PDF document text
    • http://wupeguliv.epizy.com/chaquetas_formales_para_mujer_bogota.pdfIn PDF document text
    • https://s3.amazonaws.com/fivebo/balanced_body_reformers_for_sale.pdfIn PDF document text
    • http://xovipofeguz.epizy.com/56390797552.pdfIn PDF document text
    • http://vabowako.rf.gd/kakidawijowema.pdfIn PDF document text
    • https://s3.amazonaws.com/wajufifenoxuj/naviwesopifaleme.pdfIn PDF document text
    • http://lojupefiduk.epizy.com/how_much_is_a_total_gym_1000.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_off0000d109.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD109 5368 bytes
SHA-256: 266ab099d3abb56a3fb22143c664aed67455bfcb260c9c5687be7b66155ce343
font_01_sfnt_off0000e341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE341 10240 bytes
SHA-256: aa91bae96924a168ba077702f2f2e80a60f2f73bfd9c1df5b89379465ab54c8f