Malicious PDF — malware analysis report

Static analysis result for SHA-256 a167995b35bbe288…

MALICIOUS

PDF

76.4 KB Created: 2021-03-11 06:07:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 83f57080e7c5a21c70733234b8265e69 SHA-1: 5306ad7c445aa8158320e545586e3fdd5767a3c1 SHA-256: a167995b35bbe2885be98dce7c8e852a8660d376fc78eefc9e46de0f07304dbb
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 0.9996

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://zajinet.ru/strik?utm_term=how+to+learn+interior+design+software PDF link annotation
    • http://itnegozio.info/bivogexbvea6.pdfIn PDF document text
    • http://yellownatural.space/14416874017mm7um.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414866/normal_5ff3cf98a329a.pdfIn PDF document text
    • http://clipshd.design/tegonexosofzsh7t.pdfIn PDF document text
    • http://leririv.sportsontheweb.net/xujuporisoxanuvutaj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368746/normal_601e0056e2c3c.pdfIn PDF document text
    • http://uabiomanix.xyz/nissan_50_forklift_partskdtqf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386837/normal_5fefa85bc9494.pdfIn PDF document text
    • http://iglivesupportteam.com/43163150755rj102.pdfIn PDF document text
    • http://xaraxag.mypressonline.com/65470018177.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403674/normal_603239ee1e4b9.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/fojaxexino/kojipasebid.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/kuzunonapibuwovekofelumaj.pdfIn PDF document text
    • http://nedupidanasadef.rf.gd/gumezanusode.pdfIn PDF document text
    • https://s3.amazonaws.com/dosipive/vikudokopunubo.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/21209916747.pdfIn PDF document text
    • https://s3.amazonaws.com/muvevanepen/59385579194.pdfIn PDF document text
    • http://zuvelekoj.epizy.com/eduardo_galeano_english.pdfIn PDF document text
    • http://kegeduwamid.epizy.com/project_almanac_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/fadobirak/zemeremewimivawenawa.pdfIn PDF document text
    • https://s3.amazonaws.com/regufojalojaza/beweduzobalot.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/how_to_make_healthy_smoothies_to_lose_weight.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_off0000ee83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE83 5128 bytes
SHA-256: e2d28523371f76d2577b3eac0b1e4dec80d2391ab87e132a205b7434d944dddc
font_01_sfnt_off00010015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10015 10192 bytes
SHA-256: 54fa2bd130417198e4e59fe12c5216e2bfc8ee2635fc4c3a459e2163c65360ba

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