Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c026405f5ad88ff…

MALICIOUS

PDF

67.8 KB Created: 2021-03-03 00:53:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 041ef2a02750f23dbd168ce6c6a8e246 SHA-1: e6471c21f345583fe6ead48a4d3a217d10d3e8c1 SHA-256: 4c026405f5ad88ff17fde6b6ee4cbc48c2f42c18973e65c180758ed708a63b9b
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://xezojetit.ru/wix?keyword=pig+cookie+jar+song PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4426572/normal_5fdbd225582dc.pdfIn PDF document text
    • https://dawijenumekoxel.weebly.com/uploads/1/3/6/0/136087820/duvevav_xidata_setebowenava.pdfIn PDF document text
    • https://cdn.sqhk.co/beratinuga/Qievhgo/fun_reading_comprehension_activities_5th_grade.pdfIn PDF document text
    • https://cdn.sqhk.co/wojipezusax/jbgjifn/totawibiwolan.pdfIn PDF document text
    • http://kulokozataxat.22web.org/39219714204.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481164/normal_5fd0391461311.pdfIn PDF document text
    • https://sirususi.weebly.com/uploads/1/3/1/4/131407567/783c8710b7260c.pdfIn PDF document text
    • https://fodewifejala.weebly.com/uploads/1/3/4/4/134491976/9951772.pdfIn PDF document text
    • https://birivisixakaxe.weebly.com/uploads/1/3/4/6/134608058/5be27a1f.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvuvidova/eIcjb2T/zadugusatixajonidakezuvab.pdfIn PDF document text
    • http://judijemavup.22web.org/annual_report_indofood_sukses_makmur_2017.pdfIn PDF document text
    • http://vkysnaya-eda.site/free_math_worksheets_with_answersrk0un.pdfIn PDF document text
    • https://mejibafizafev.weebly.com/uploads/1/3/4/0/134042836/kuzuso_dusuloregibo.pdfIn PDF document text
    • https://cdn.sqhk.co/tuwetebep/fz0jvZU/a_drifting_blood_clot_is_called_a_n.pdfIn PDF document text
    • http://milky-rp.space/bilebqewt8.pdfIn PDF document text
    • https://cdn.sqhk.co/vefoveted/hjhijhh/duguxotarazoguko.pdfIn PDF document text
    • http://tesar-krd.ru/saint_seiya_awakening_mod_apk_unlimited_moneyvzk47.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fepadegan.epizy.com/bebelubetegu.pdfIn PDF document text
    • http://favugepotepegal.rf.gd/electrophoresis_interactive_online_activity_answers.pdfIn PDF document text
    • http://bekisamusexasu.rf.gd/bethel_music_victory_album_free.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_off0000cd69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD69 5076 bytes
SHA-256: d20d2819991d1dd9d363dbff622dcef5e6fb67b82c315c81cdc356b7244f3efe
font_01_sfnt_off0000decd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDECD 10224 bytes
SHA-256: 1217755cf7f2b12d1c8f09b9a4ec90954bec7685af8edf27ab4c65930c302a44

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