Malicious PDF — malware analysis report

Static analysis result for SHA-256 914c9f6ddf6790fa…

MALICIOUS

PDF

78.1 KB Created: 2021-02-20 20:19:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 790b57c2d08a63290a5efd43a539c4fe SHA-1: afac65fdc961af1b0cf0bce34c86f5c8a1a97321 SHA-256: 914c9f6ddf6790fa73eedab4563bf48041459830cc3e2b7c60e98185ac1aa90f
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a website related to 'Star Citizen ships to buy in game', suggesting a phishing or scam lure. While no scripts were explicitly extracted, the PDF structure and the presence of external URIs indicate an attempt to redirect the user to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/strik?utm_term=star+citizen+ships+to+buy+in+game PDF link annotation
    • http://golifidisonopat.iblogger.org/38721430857.pdfIn PDF document text
    • https://cdn.sqhk.co/veleviziwew/Ditexih/545119286.pdfIn PDF document text
    • https://cdn.sqhk.co/savaketiju/SXqgIge/67401735194.pdfIn PDF document text
    • http://memubalejegezur.66ghz.com/17142438324.pdfIn PDF document text
    • https://cdn.sqhk.co/tosuwukiwate/E4gcXgh/28441958879.pdfIn PDF document text
    • https://cdn.sqhk.co/vipabure/idkmNhd/95872947663.pdfIn PDF document text
    • https://cdn.sqhk.co/wazotifuk/KhhR2oK/magic_square_calculator_3x3_fractions.pdfIn PDF document text
    • http://tevajevidiwa.22web.org/criminal_justice_reform_bill_louisiana.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/jidagafinuxesu/vabarapezogomuwomiso.pdfIn PDF document text
    • http://dipijiz.epizy.com/24557858495.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/42065173317.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/schaum_series_tensor_calculus.pdfIn PDF document text
    • http://migukim.rf.gd/whirlpool_gold_series_refrigerator_repair.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/32158458345.pdfIn PDF document text
    • http://sufumawug.epizy.com/warrior_protection_leveling_guide_3._3._5.pdfIn PDF document text
    • https://s3.amazonaws.com/xilasisefi/64502237096.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e572.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE572 5592 bytes
SHA-256: bfbd8221fb4b36d88e80bf6f3a4e0b56be250d31069d9f2d0af1d52e36a84a7b
font_01_sfnt_off0000f846.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF846 10680 bytes
SHA-256: e4030d4e8f7120470c9822ff823dc6a86d9456773074bf45827512363fc3b9cc
font_02_sfnt_off00011c96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C96 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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