Malicious PDF — malware analysis report

Static analysis result for SHA-256 61bbe4be24dc14fa…

MALICIOUS

PDF

61.6 KB Created: 2020-11-13 04:51:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 557617eb38fc116da245e05093c05377 SHA-1: 927209c144a5098105f6e027411608496abc9b3c SHA-256: 61bbe4be24dc14fab0f8e73613e9a930f33274f240b45b1794938bf4f74c88f3
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=aaha+kalyanam+songs++starmusiq PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368245/normal_5fadc661121d4.pdfIn PDF document text
    • https://zejibafubetu.weebly.com/uploads/1/3/4/1/134108860/4407206.pdfIn PDF document text
    • https://wurikosaradusif.weebly.com/uploads/1/3/1/3/131384544/9558563.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380382/normal_5f9cc182551b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386842/normal_5fad33fad2eba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365599/normal_5f945f645c26c.pdfIn PDF document text
    • https://papukelub.weebly.com/uploads/1/3/4/6/134666119/92775764946.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/65ea7694-e327-49c2-b50e-17382b787a57/61971788403.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/olympus_camedia_d-_560_zoom_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/muvojugejoxip/zerukod.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_off0000b371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB371 5380 bytes
SHA-256: 49239babd764e2097cbb10c4a7ce4d7077510593779c2173e14b28570f694333
font_01_sfnt_off0000c598.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC598 10684 bytes
SHA-256: e647fce7118eb1101fcbabe6b17a380a1e105f48d120ba6888436c1619d12570

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