Malicious PDF — malware analysis report

Static analysis result for SHA-256 af6ee92cfea33d51…

MALICIOUS

PDF

70.8 KB Created: 2021-02-02 14:57:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-31
MD5: 8f5b79630d53204d1ab20cc5af9f8e25 SHA-1: 544e89d7e495dc9ac09b83923165d78bf8589781 SHA-256: af6ee92cfea33d51138771ed3ba5039e121f513b1e970a5a0f19b3d71017ee7d
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://leonvi.ru/aws?utm_term=acestream+android+old+version PDF link annotation
    • http://idealicaitaly-ufficiale.site/ketifikanetewirusesiu32vk.pdfIn PDF document text
    • http://igbusinessabouthelp.com/53612061208lcsyw.pdfIn PDF document text
    • http://winsl.space/bubble_gum_simulator_roblox_codes_2020rqd9t.pdfIn PDF document text
    • http://setofexperience.site/nepijoraxamobagfk58p.pdfIn PDF document text
    • http://adv-workshop.site/galaxekokutodolojotupn5qq.pdfIn PDF document text
    • https://cdn.sqhk.co/satofapo/hc8xijZ/romozudidibaveme.pdfIn PDF document text
    • https://cdn.sqhk.co/xumefotebe/KFgfYif/84050745783.pdfIn PDF document text
    • http://helplnstagramoffice.com/higher_engineering_mathematics_bs_grtl309.pdfIn PDF document text
    • http://molotkov.site/5634254494n7oxz.pdfIn PDF document text
    • https://cdn.sqhk.co/bamazaludez/uKLjjct/zasuvej.pdfIn PDF document text
    • http://wrinklestiltskin.com/85019437781e3e9p.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/kukazowox/17596218304.pdfIn PDF document text
    • https://s3.amazonaws.com/latufenaw/le_cartesianisme.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/piwarorepe.pdfIn PDF document text
    • https://s3.amazonaws.com/mawesenasijoser/87016397549.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_off0000d8ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8AC 5136 bytes
SHA-256: b6fb76327980045e7a70fc123238ea9bc985511501737798023996f1e12a17ef
font_01_sfnt_off0000ea12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA12 10764 bytes
SHA-256: 8b4478c494b6aa91f64f2f4fdee911223c576057cd8d1766c6d832d2c0c7d2b9