Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1daa298c5122627…

MALICIOUS

PDF

64.5 KB Created: 2021-02-26 13:36:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 9f9928f4dcbd1ee291ba77ef7cd47221 SHA-1: 9aa32e581cfd34d374792c1f5b77a5b3052a1173 SHA-256: a1daa298c5122627073d389c4a985bc37ba51257cd886f4276d0050ce7b63452
96 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. The document contains an embedded URL that redirects to a suspicious domain, likely serving as a lure to a phishing or malware distribution site. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to trick users into visiting malicious content.

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://jacksth.ru/strik?utm_term=minn+kota+riptide+ulterra+80+parts PDF link annotation
    • https://cdn.sqhk.co/pibilebomek/hhBjjig/39703445966.pdfIn PDF document text
    • http://mynasert.online/792521789331vdly.pdfIn PDF document text
    • https://cdn.sqhk.co/wujugojuse/Mhfugc9/youth_soccer_kickoff_rules.pdfIn PDF document text
    • https://cdn.sqhk.co/jukowejazus/gdOjjje/scary_killer_escape_house_horror_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421770/normal_602f6d287122e.pdfIn PDF document text
    • https://cdn.sqhk.co/duloputemab/hehThaN/16242603691.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393626/normal_6000db9d02656.pdfIn PDF document text
    • https://cdn.sqhk.co/pevejotomoma/VNicihW/roller_splat_level_146_bonus.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497359/normal_5fcaaabb88d1f.pdfIn PDF document text
    • https://cdn.sqhk.co/vojasipi/jdhhYsA/70989200428.pdfIn PDF document text
    • https://cdn.sqhk.co/bipadifudame/jcoGie9/shadow_of_death_dark_knight_stickman_fighting_apkpure.pdfIn PDF document text
    • http://koprovk.xyz/labubinefuwovamumz1p1q.pdfIn PDF document text
    • https://cdn.sqhk.co/tivuzofep/Z42rQra/mujetuzurowazibafu.pdfIn PDF document text
    • http://werenntaq.online/datepulifixofototasisom9osw4.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/dopugaxelelema/welas.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_off0000bc56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC56 5356 bytes
SHA-256: 92a7b3782f75cffe95c37b91456ab3d1fc8fda7e287c5440bb00addc3866fe3a
font_01_sfnt_off0000cea4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEA4 10848 bytes
SHA-256: 9dc3288e2eff5bff1ad2265677a484f4d3c188d91f238a644e484b12a70fb4f2