Malicious PDF — malware analysis report

Static analysis result for SHA-256 89d52776989f0a08…

MALICIOUS

PDF

71.5 KB Created: 2020-12-18 05:13:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: e9691ccf3f7b4ec83c024aabccf5c275 SHA-1: dbe5189b831f6115265d29468894ab2709365d95 SHA-256: 89d52776989f0a088e5dd2284313a6d79d2fb66e2fd88984e2edc8afcc9b9cc2
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://trafficel.ru/strik?utm_term=download+joox+apk+uptodown PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sajatofubote/badgers_basketball_new_uniforms.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/lojotitanamajodiwalekogom.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf6023fdc31513a0efcd1/1606219266761/79737808346.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d946e49c-87dd-4099-ace6-6013db5fdf49/puxiledigom.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe76ec9b1ed03538ae3115/1606317805700/88880073591.pdfIn PDF document text
    • https://s3.amazonaws.com/vajefam/gajabutimizogetu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29d49608-9ff5-40c3-a5d1-1adf721ee5da/yahya_akyz_trk_eitim_tarihi.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/40558042347.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72939233-4e10-455b-a17b-a874c78ecc6d/92611710040.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc12af63dfdd95b60d6c240/t/5fc3175ff81c9a2a0c07c19b/1606621024911/chapter_9_ancient_india_study_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2953ad26ff1194f7e808d/t/5fc5ba9b08845d092451551b/1606793889432/passport_photo_coupon_walgreens.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc65200ea4a794d566a2ee3/t/5fd1a2bd99fe644e8a5c843c/1607574209523/novebitimimobisokuletigij.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2bcd488c99b6d37b321ee/t/5fc538243c6ccf69f3087381/1606760486149/sejulolusodinel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9497fdbd-4c31-4ef0-8fb9-b0b4cf178889/historia_del_rap.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_off0000db41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB41 4980 bytes
SHA-256: f88211d505a44369821b40457729b7ac4430a4df19e16f07ad57d00230dcbfa1
font_01_sfnt_off0000ec66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC66 11516 bytes
SHA-256: 1311ef0b1e7009852fcddb8bbe1ee263db5f98167c30761ed3aa665940474dc1

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