Malicious PDF — malware analysis report

Static analysis result for SHA-256 91337d5a950378e5…

MALICIOUS

PDF

80.3 KB Created: 2021-02-15 08:59:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 1ff3b31151f676ffc567bec4ac00fe6d SHA-1: bd2518b62641bbaf45729ce761af88aa981d06a9 SHA-256: 91337d5a950378e5172fab1498809bde296b449ec2cbb56853433390f8a67184
162 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a 'growtopia hack account' document. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of multiple unknown URLs suggests a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/wix?keyword=growtopia+hack+account.txt In PDF document text
    • http://goossyy.online/blood_test_report_for_pneumoniafrsp1.pdfIn PDF document text
    • http://mixed-rootwork.com/552817054206r4us.pdfIn PDF document text
    • http://2gusevshop.space/nepafebojeladulubuw82h1t.pdfIn PDF document text
    • http://svoytrylend.xyz/company_brand_guidelines_template4lv3z.pdfIn PDF document text
    • http://idealicaufficiale.website/ammadi_ammadi_song_audiox5mwj.pdfIn PDF document text
    • http://kismykeitio.best/xeguneletefiporametu4lfbt.pdfIn PDF document text
    • https://cdn.sqhk.co/jeporikate/0hgRjaF/95665323091.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/dofufiri/79138410269.pdfIn PDF document text
    • https://s3.amazonaws.com/pirofopafu/58463150756.pdfIn PDF document text
    • https://s3.amazonaws.com/bifadiwuwileji/denujonesasidorukofadoz.pdfIn PDF document text
    • https://s3.amazonaws.com/bajapovogam/84713806061.pdfIn PDF document text
    • https://s3.amazonaws.com/tutasujal/51027353395.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/19800266754.pdfIn PDF document text
    • https://s3.amazonaws.com/varoximu/39228566746.pdfIn PDF document text
    • https://s3.amazonaws.com/lezopobigeza/34517141040.pdfIn PDF document text
    • https://s3.amazonaws.com/nakevoja/run_itunes_on_android_tablet.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_off0000fcc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCC5 5096 bytes
SHA-256: de789e1aa7e929586f2cb06f809b2af1386a1180c7160ef2963c999ad11bd9a9
font_01_sfnt_off00010e36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E36 11036 bytes
SHA-256: 6f32b665d3e60d16a42b99d84ebab209755f85fa3e9b2a20afabc8cfa994b1b8

Open this report in the interactive analyzer, or submit your own file for analysis.