Malicious PDF — malware analysis report

Static analysis result for SHA-256 97480f7fcbb5cc5b…

MALICIOUS

PDF

76.8 KB Created: 2021-02-22 08:23:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 45fd32625d55cbef9b67336384da24b2 SHA-1: de321189fac2079805994b4bc4901e726aa643dd SHA-256: 97480f7fcbb5cc5b8a3e853eaed97527c3a9033b2c3f7cef8daab892ae692005
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were directly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, likely as part of a phishing campaign.

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/123?utm_term=fifty+shades+freed+trailer+2015 PDF link annotation
    • https://cdn.sqhk.co/zururodi/TkhbAig/gogutasiwelufap.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393036/normal_5ff28c59310b6.pdfIn PDF document text
    • https://cdn.sqhk.co/nipigagavadu/a7bmvVX/xavafevikuroti.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393488/normal_600a238ae5451.pdfIn PDF document text
    • https://cdn.sqhk.co/zikegasenar/ujjNMZy/34706468956.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444647/normal_5ff7d02529a2a.pdfIn PDF document text
    • https://cdn.sqhk.co/naliwanik/jhiOHAy/nbc_connecticut_anchors.pdfIn PDF document text
    • https://cdn.sqhk.co/ributexovek/zjakihM/vefitugeg.pdfIn PDF document text
    • https://cdn.sqhk.co/rajemaramiw/ibKbitZ/42174592915.pdfIn PDF document text
    • https://cdn.sqhk.co/demanajinu/ghdhhtb/54375141179.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383137/normal_5fd899b1e627f.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/buganabowumujef/42824492309.pdfIn PDF document text
    • https://s3.amazonaws.com/jexijer/duvukobanovom.pdfIn PDF document text
    • https://s3.amazonaws.com/pusolefosex/animania_ios_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/julexekubaj/65325823520.pdfIn PDF document text
    • https://s3.amazonaws.com/jewizopukuni/98466708199.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/livros_apocrifos.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_off0000ec25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC25 5504 bytes
SHA-256: 807a0b13b72f61ec427e780ca233e9bbcfe023d0355bf44eb9cafa5a3d72683b
font_01_sfnt_off0000fee9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEE9 11100 bytes
SHA-256: 569aac775a426b656e0bdc24bd6ea831ead2608b20139201d255517b66d890fd