Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dfe9bccdc5296a6…

MALICIOUS

PDF

66.8 KB Created: 2021-02-14 11:57:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d38ee77fc5effe91066b0f4dd1774a8a SHA-1: d68e1cdca64868fbc77feac05639bd5f919faff1 SHA-256: 6dfe9bccdc5296a62b8174000b03c225633b89e5f7be2616fce57e2ff2d666d3
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/wb?keyword=backup%20app%20apk PDF link annotation
    • https://cdn.sqhk.co/jutusaxibu/fQqE1hb/77234294750.pdfIn PDF document text
    • https://mawetifatine.weebly.com/uploads/1/3/2/6/132683292/213898.pdfIn PDF document text
    • http://losmopaka.site/83019204197cbx3v.pdfIn PDF document text
    • https://pawiwojofidinof.weebly.com/uploads/1/3/4/4/134458390/5042105.pdfIn PDF document text
    • https://kawuzuvom.weebly.com/uploads/1/3/1/3/131379118/3a056.pdfIn PDF document text
    • https://kuwisuzom.weebly.com/uploads/1/3/4/0/134017610/0f35ae784f.pdfIn PDF document text
    • http://hookup153.space/larakaseteramkntn.pdfIn PDF document text
    • https://cdn.sqhk.co/fapolokid/dH58hhQ/8821462321.pdfIn PDF document text
    • https://cdn.sqhk.co/senepaderu/igibiiF/15139622100.pdfIn PDF document text
    • https://cdn.sqhk.co/javeduner/cidjhji/zombie_frontier_2_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/vavewiren/0icqcjh/game_ninja_and_zombies_mod_apk_unlimited_money.pdfIn PDF document text
    • https://cdn.sqhk.co/ribobujir/eEFjgmV/xokepipetakofejize.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/saziwijaxodav/14081935079.pdfIn PDF document text
    • https://s3.amazonaws.com/memexelu/espanol_santillana_level_4_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tafogusegabomu/weekly_food_journal_template_excel.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_off0000cb93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB93 4736 bytes
SHA-256: 2d6dc7a7323d8b101aecd189ea6e9c433af3acbeb3a316e3c742501bde1af883
font_01_sfnt_off0000dbc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBC8 10204 bytes
SHA-256: 7a8815aae1fe31be2a2db44354d33006e8fa96fc4d3795eea49e078a7bbfd079