Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf1a9e6b41e2cb8b…

MALICIOUS

PDF

80.2 KB Created: 2021-04-22 07:02:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 2a547c72fde2721def24bcff93dd152c SHA-1: 51b5adc90804221c869a0ad172f047aca34eaf41 SHA-256: bf1a9e6b41e2cb8b9a365f25e638554853746fd6032b3e0a91dae405fe13b521
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 0.9967

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://xajibur.ru/strik?utm_term=literary+theory+and+criticism+an+oxford+guide+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4467036/normal_601853e342f23.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417537/normal_5fcea1e1b19cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414680/normal_5fdc709a0b376.pdfIn PDF document text
    • http://majusenise.sportsontheweb.net/pipexulenuzuvatila.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469119/normal_60378403496dc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jugugesazo.myartsonline.com/area_of_equilateral_triangle_worksheet.pdfIn PDF document text
    • http://bebojivim.myartsonline.com/padesa.pdfIn PDF document text
    • https://s3.amazonaws.com/xeruxaxer/15187342292.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6ecf41a-8c8e-4d35-a740-a7b59681b2b0/61673273859.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/jisomubavuvuzax.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/94233477033.pdfIn PDF document text
    • https://s3.amazonaws.com/lolaritemukole/runidadugoloropujip.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/tumixukodapiditupagexo.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/rational_functions_worksheet_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/feliso/31143727774.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5368b70d-12f5-4c9f-bc95-7a0d51e38291/the_dot_book_activities_for_preschool.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8774d2e0-d21b-4ca2-b00d-6edb3acc7e73/apprenticeship_patterns_online.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaporam/11729131640.pdfIn PDF document text
    • https://s3.amazonaws.com/mukut/2673803580.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/pekanesibate.pdfIn PDF document text
    • https://s3.amazonaws.com/sitozi/chapter_17_the_progressive_era_crossword_puzzle_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tafogusegabomu/65409586072.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/86460431580.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0fb13ac3-9062-4d2d-a5e3-b50bc0c3605c/contemporary_sport_management_4th_edition_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vasofirida/programming_arduino_uno_in_pure_c.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25c79e0b-f7e4-46cd-87d7-4eda634b8ad4/wing_chun_techniques_video_download.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f931.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF931 5648 bytes
SHA-256: 692aef755a918385ab31fd48ac5ead707fab0200c27b841509262b3d001c86ac
font_01_sfnt_off00010c5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C5C 10720 bytes
SHA-256: 72c1b3b7b5a7372e2ea3b569e2f7bddb5383fc894a07b51cf4aa807208a375e3

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