Malicious PDF — malware analysis report

Static analysis result for SHA-256 46b9e27680e72c7e…

MALICIOUS

PDF

73.7 KB Created: 2021-05-23 05:41:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 2d6700233f680b3083e27a4597588f58 SHA-1: 42b858ca3459e41a5730fd7064bea1b95a302217 SHA-256: 46b9e27680e72c7eaeeeb7dd9ceb9a5180be7e7ea143cae7ef5489ec090261ac
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely used for distributing malware or conducting phishing. The document body, though partially corrupted, contains text related to song downloads, suggesting a lure to entice users to click the malicious link.

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://dugedepap.ru/strik?utm_term=sanam+teri+kasam+1982+mp3+song+download+pagalworld+320kbps PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4450636/normal_603e44fa2c944.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459324/normal_6006b70e6d8fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489992/normal_60166e6c0d36a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460231/normal_601ddcb4c1ea8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414353/normal_603213172e21a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383449/normal_5fcf210c40c1d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/2d679015-3244-435b-940b-fabc5f96fc3f/roxizelizuniwomo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/873d055a-bfd2-4ec7-b2da-6985839987f6/most_powerful_stoic_quotes.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/61101167652.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6592388c-6e51-4be9-ac17-c2305892a41d/futoxobusasisifefivek.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/needs_assessment_template_project_management.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b29ac91c-191c-44f8-9529-1fbf98631847/4261394988.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f12c40b-6742-4072-ab10-0e682244ad14/lijopub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/231de132-8b1a-4f83-b4e4-615fee8c1665/ginenimuwijidisudaginivu.pdfIn PDF document text
    • https://s3.amazonaws.com/jojitagifuva/nekilajirodelafekekigibuv.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/kijusezewuzugivoniwel.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d105.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD105 6304 bytes
SHA-256: 652b9e5c0c2573cfc299e8062aafae67b032e7e5efe9630d72c8527a3434b01b
font_01_sfnt_off0000e64c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE64C 10256 bytes
SHA-256: c39167ccc9e66ad8d9f05589fc75dc66d323f0351be6d1e6777d878d8a98e4a6
font_02_sfnt_off00010940.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10940 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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