Malicious PDF — malware analysis report

Static analysis result for SHA-256 f54bf8e621b0ff9f…

MALICIOUS

PDF

75.7 KB Created: 2021-02-17 07:40:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c6dc86025f2c672ea90c925f2a582123 SHA-1: 1241f02610a175b665b0b7067c076ebe1b5fe61c SHA-256: f54bf8e621b0ff9f4b239a896d0291418fe7fdf03e97a2896f3e12a2f1b810ba
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=farewell%20to%20manzanar%20sparknotes PDF link annotation
    • http://biweekamnf.com/mine_bitcoin_on_android_2019gmec2.pdfIn PDF document text
    • https://poxobavu.weebly.com/uploads/1/3/1/4/131453713/0411e0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381973/normal_5ff7fc8e5c58c.pdfIn PDF document text
    • http://mbfsopg.com/witches_of_eastwickneuu1.pdfIn PDF document text
    • https://siwevobone.weebly.com/uploads/1/3/5/3/135317475/vudowitufe.pdfIn PDF document text
    • https://kevititexozasen.weebly.com/uploads/1/3/2/7/132712545/fimiwupipabodisewuse.pdfIn PDF document text
    • http://nakanilo.club/duxixeja9qed2.pdfIn PDF document text
    • https://cdn.sqhk.co/zozusexub/Lhiyzhi/car_crash_cross_county_parkway.pdfIn PDF document text
    • http://kivudutamazawan.22web.org/xosasenimolikafaxojixaxa.pdfIn PDF document text
    • http://xadixul.66ghz.com/diccionario_hebreo_biblico.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/jajuzasalikirut/music_bass_booster_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/83435731997.pdfIn PDF document text
    • http://somejawugo.rf.gd/army_dress_green_uniform_wear.pdfIn PDF document text
    • http://pofiron.rf.gd/22270753934.pdfIn PDF document text
    • https://s3.amazonaws.com/satuja/14526138598.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_off0000ee2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE2B 5124 bytes
SHA-256: 04a1394b435b55dd8a09ecd26a30160f5cea698d0356ff1bb5641863a9e96df1
font_01_sfnt_off0000ffa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFA0 10044 bytes
SHA-256: cc75a1eedf30ad1e39ba77acc7fd63a867ab645c58a84af9b29a1b309d9d0f97