Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a2278ff9af563d9…

MALICIOUS

PDF

75.0 KB Created: 2021-05-16 02:17:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c87c1e6111a8d28f8ef0887bf9986996 SHA-1: 1f987131cba71d7021dc348ae458baa9431e0aa8 SHA-256: 2a2278ff9af563d9663d3c1ad31ccc56867025e24a02ca74609df426389ea112
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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://baarspo.ru/strik?utm_term=how+long+after+planting+garlic+to+harvest PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4481402/normal_5ff32bd6d5d76.pdfIn PDF document text
    • https://cdn.sqhk.co/faxixuwako/ehdiijd/24742414724.pdfIn PDF document text
    • http://watodakazo.22web.org/richard_clayderman_mariage_d_amour.pdfIn PDF document text
    • https://cdn.sqhk.co/mujekesire/Y544C1I/nipukofuj.pdfIn PDF document text
    • http://ridaxom.iblogger.org/annotated_bibliography_apa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406463/normal_5fe9f93565786.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402938/normal_601f7abb69f69.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/6cea1ddc-bcbb-49c6-ae29-ebca4ca1ca19/nukin.pdfIn PDF document text
    • https://s3.amazonaws.com/tabobujimo/10474381271.pdfIn PDF document text
    • http://vagaxalelevirot.epizy.com/18381229631.pdfIn PDF document text
    • https://s3.amazonaws.com/zisulamisozoto/43028593697.pdfIn PDF document text
    • https://s3.amazonaws.com/xugigabitulu/harry_potter_y_el_misterio_del_principe_libro_pasta_dura.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f84d4ee-4803-4c9d-a718-4fe481181f98/rush_hour_4_script.pdfIn PDF document text
    • https://s3.amazonaws.com/pidufozu/71018952333.pdfIn PDF document text
    • http://dozudaz.epizy.com/65744845687.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/46076880746.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb044e20-1bb3-43f3-9038-a14969439cb4/5401108906.pdfIn PDF document text
    • http://tesezozujib.epizy.com/formal_happy_birthday_message_to_boss.pdfIn PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/roraf.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/21440084085.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/444b0a49-e085-4cf2-b443-93dbbde3cf92/49672058478.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_off0000e638.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE638 5388 bytes
SHA-256: 85a056fc85eba92a2e8d67f5243110563969edf3c588b45d4bae2ebac41c1a55
font_01_sfnt_off0000f8aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8AA 11348 bytes
SHA-256: 589c07b6a5eb7cf35a4f9471a0439da0e3ccd684040dee19c659b819c5cdb572

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