Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a1b783efbb38af2…

MALICIOUS

PDF

85.3 KB Created: 2021-05-14 19:02:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e129da3b8531a4809dd6bea4cca1568d SHA-1: 8ad9b88213e7ae2ff6bd3e178bd6e71139c02666 SHA-256: 6a1b783efbb38af2259968fe2c00ad8ae9a74a11803967e454c1815aa135f572
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 0.9995

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://crophysi.ru/strik?utm_term=delta-q+charger+profile+list PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4460968/normal_606c7b2f50d44.pdfIn PDF document text
    • http://tivuximuliku.mygamesonline.org/satyanarayana_biochemistry_book_download.pdfIn PDF document text
    • http://vizemezezu.sportsontheweb.net/tadzkirah_ahmadiyah.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375708/normal_60142cf9683d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367940/normal_6059c39d4d679.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450347/normal_5fe5279a9514d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412160/normal_6017d65456239.pdfIn PDF document text
    • http://degifutuv.scienceontheweb.net/kiwesisaxus.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408190/normal_604043e86bf4f.pdfIn PDF document text
    • http://punejew.mygamesonline.org/fididimeko.pdfIn PDF document text
    • http://xarapover.mygamesonline.org/65270972884.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372960/normal_6025c35aefd3f.pdfIn PDF document text
    • http://beritox.medianewsonline.com/80716270116.pdfIn PDF document text
    • http://femetorisufi.sportsontheweb.net/fisizovewefizajal.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/genijusemu/34602574810.pdfIn PDF document text
    • https://s3.amazonaws.com/jeromisixinolib/alien_tamil_dubbed_movie_tamilrockers.pdfIn PDF document text
    • http://bitines.myartsonline.com/sudapekanepopokus.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/kuxilepido.pdfIn PDF document text
    • http://tefetuzuzip.myartsonline.com/92303202844.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/reguvuxiramebimulobore.pdfIn PDF document text
    • http://kikukuvikato.myartsonline.com/bsc_chemistry_syllabus.pdfIn PDF document text
    • http://pimobepetokonud.myartsonline.com/air_conditioner_components.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ff78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF78 5116 bytes
SHA-256: 73f255dcef09f5294fa72f3b4b1ea433aaa7a18f3cbb7c1ca611fc888e5f933e
font_01_sfnt_off00011100.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11100 11940 bytes
SHA-256: 13e1556e876d9a3c9a1046eae4399b6c8d85480c9eb70c65ab2940b693ab6e10
font_02_sfnt_off000139af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x139AF 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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