Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ee0daa93be4cee2…

MALICIOUS

PDF

77.8 KB Created: 2021-03-05 22:52:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 8c42607b5bf21aebc480414a67ea2f8a SHA-1: c81a26bed8a8f9d9abab5a141a9162aa850d09bd SHA-256: 2ee0daa93be4cee263cac7915b1b52a855477bc11f9222f4012e189628c59f42
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that appears to be a lure for downloading Android applications. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. While no scripts were directly extracted, the PDF structure and embedded URI suggest a phishing attempt to trick users into downloading harmful software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://nipisod.ru/wix?keyword=android+6.0.1+download+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4481509/normal_6029d61d3885c.pdfIn PDF document text
    • http://mmeueue.space/genimalezidur3h5k.pdfIn PDF document text
    • https://cdn.sqhk.co/jawutuwek/9hcjagd/buwenilizilukujo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375342/normal_5fd1f1a79d1ae.pdfIn PDF document text
    • http://ottics.ru/802956866960903s.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449205/normal_60273d9385693.pdfIn PDF document text
    • http://piguzipudoval.iblogger.org/are_2003_mitsubishi_eclipse_reliable.pdfIn PDF document text
    • https://cdn.sqhk.co/najafizox/Lyla9hh/revurudoramamozusagotep.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450630/normal_6009112081b39.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461207/normal_5ffd58f5d5da6.pdfIn PDF document text
    • http://websporizlehd.com/beginners_guide_to_digital_painting_in_photoshop_elements8vchx.pdfIn PDF document text
    • https://cdn.sqhk.co/koxuzofu/bshb2g8/nhl_hockey_news_reports.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426424/normal_5fe518922921a.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/jotizifime/xumukamakulomufamubijola.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatofubote/dizukitoditu.pdfIn PDF document text
    • http://joxuritodapeni.epizy.com/punuzo.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/20227140094.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/nasivixozimojesugesugid.pdfIn PDF document text
    • https://s3.amazonaws.com/wogikokuzotaxa/tobegesoli.pdfIn PDF document text
    • http://sozanizitug.epizy.com/zisigogitipunusezi.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_off0000f50b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF50B 5300 bytes
SHA-256: 70aff01c8be29803a66640e7b52835c94304e4e0c6d38bd27f7280b70280c482
font_01_sfnt_off0001073c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1073C 10240 bytes
SHA-256: c70d6d6f6eed4cb5ff4967cd24b157b1aa7ba1105666275678c2e9b4c3041bf9

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