Malicious PDF — malware analysis report

Static analysis result for SHA-256 b432801915755930…

MALICIOUS

PDF

58.1 KB Created: 2020-11-12 21:56:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f35b296742139c6d79c773495a0a3821 SHA-1: dc57ac23d6fb1ae5e7791b31225fb1aafa9b7450 SHA-256: b432801915755930c50b048928c1f8d48f6b947260131354036936f3eb7ab247
96 Risk Score

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 0.9996

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://trafftec.ru/aws?utm_term=bodybuilding+workout+photos+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4385028/normal_5f9a3567e00e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450630/normal_5fa4a23ab12ed.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/1cf22.pdfIn PDF document text
    • https://mufedagejex.weebly.com/uploads/1/3/4/7/134726032/43a349bf4de6ea5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423732/normal_5fa727004fe7a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375207/normal_5f8ebb4ea34d8.pdfIn PDF document text
    • https://xiliperudal.weebly.com/uploads/1/3/3/9/133999468/7042328.pdfIn PDF document text
    • https://bagubabijotete.weebly.com/uploads/1/3/4/3/134319258/9267305.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381788/normal_5f98f6354fd6c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502246/normal_5fad821a39ba7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368777/normal_5f890889a9648.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/pusori/gajepitejupowozumik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f47387fb-9d7f-4958-85b2-44e5a1c5b63b/christ_cornerstone_scripture.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_off0000a914.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA914 5540 bytes
SHA-256: acbd21236e12eb1cf6ee3d289337f169223a75583184538254bbb7732de47526
font_01_sfnt_off0000bc0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC0A 9324 bytes
SHA-256: 8003887aef439b9d320e85cc53be90ec1f7773a4bba3399c3188fd4e8ebaca7e