Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a6164aabcabbdd4…

MALICIOUS

PDF

70.1 KB Created: 2021-02-07 19:35:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 474793befa5b136cb510626d40f55729 SHA-1: 216a9b7135fce888f2784c05921a8315605c9655 SHA-256: 9a6164aabcabbdd45c69d74d3bf7aca5f194b7c4b614e6dff720f7bc73bed25b
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/aws?utm_term=installing+android+on+raspberry+pi+2 PDF link annotation
    • https://lemirupuzomive.weebly.com/uploads/1/3/2/8/132814022/3792296.pdfIn PDF document text
    • https://cdn.sqhk.co/kixepijap/6jjhtjj/92176711393.pdfIn PDF document text
    • http://cashbackmoney.info/28265193830tsf8d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373508/normal_5fca79f1e35b0.pdfIn PDF document text
    • https://dobuxodujunov.weebly.com/uploads/1/3/2/7/132741154/ridumigabe.pdfIn PDF document text
    • https://dazuvekojuj.weebly.com/uploads/1/3/4/8/134863877/bifadak_kolafena_nakafenofega_patalimojuwila.pdfIn PDF document text
    • http://j3vnci4.xyz/libro_geografia_1_secundaria_editoriwqlyb.pdfIn PDF document text
    • http://clipshd.design/wulisibezefujadegader0tfjv.pdfIn PDF document text
    • http://strahuemsya.info/20556733044bwkzy.pdfIn PDF document text
    • http://italiahot.space/galon80lhz.pdfIn PDF document text
    • http://moymagazin.xyz/an_eye_for_an_eye_witcher_329zww.pdfIn PDF document text
    • http://vknart.xyz/the_music_lesson_victor_wooten07f9j.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/leteraxewe/71986637748.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/karachi_university_ba_admission_form_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/sugowometidofeku.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_off0000d4ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4AE 5440 bytes
SHA-256: 7c3b1a4ef0668a8b14bd1432ba2021081094b04a031eb7a5dac1b09f43ed9ad0
font_01_sfnt_off0000e73d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE73D 10588 bytes
SHA-256: b833dd02d85ab958be01603d98ae3016a0a7c935f6eeaf3d0a9c152dc6e702a8