Malicious PDF — malware analysis report

Static analysis result for SHA-256 25dd829aa3d7a7d5…

MALICIOUS

PDF

75.0 KB Created: 2021-02-05 02:48:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 861134c11568dc59712fab805f4e859e SHA-1: 43e02177b15a52b251df03cc97abaf959d965633 SHA-256: 25dd829aa3d7a7d569bbe0c1e449396e6142d51a4da8b6f4f43e990ff672b9fc
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/123?utm_term=dcuo+electric+healer+guide PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4389370/normal_5ff6c4fdcf268.pdfIn PDF document text
    • https://pedasivu.weebly.com/uploads/1/3/5/3/135387907/9650383.pdfIn PDF document text
    • https://jurujixomegisi.weebly.com/uploads/1/3/4/7/134745805/berifirukijewiw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370077/normal_5fe17edfc5449.pdfIn PDF document text
    • https://monokuzofo.weebly.com/uploads/1/3/2/7/132741222/kipipunoriwope-kuvuberofob-sawekisufosatof.pdfIn PDF document text
    • http://nawilojobate.iblogger.org/jamuluwewawapivudaxul.pdfIn PDF document text
    • https://cdn.sqhk.co/kewixoretuze/iNwjjT8/77834757870.pdfIn PDF document text
    • http://siduwukalupi.22web.org/waxovarakoxonusawopilok.pdfIn PDF document text
    • https://cdn.sqhk.co/letaziseb/fjihbhi/sofixo.pdfIn PDF document text
    • http://jivopifavu.22web.org/37958136994.pdfIn PDF document text
    • http://wimazosuwoxugij.66ghz.com/57554183193.pdfIn PDF document text
    • https://linebabeta.weebly.com/uploads/1/3/5/3/135317009/mazojawesidazu.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/fomaralunex/1438629148.pdfIn PDF document text
    • https://s3.amazonaws.com/gitipelut/mac_catalina_iso.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/kupafejisegiga.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_off0000e9ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9AB 5020 bytes
SHA-256: 97377dcdd80781b762d6dc271660dca199b31e54f0fbec5aedeeda36a91f4275
font_01_sfnt_off0000faba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFABA 10664 bytes
SHA-256: 067d2a51f633fb7fc3e374fdb0eb12be712a1e2a52ad269cf1487eed8407f3ec