Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b8cf19b076b58c6…

MALICIOUS

PDF

73.3 KB Created: 2021-07-17 19:18:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: ce2c3399e516b0367e8bf1dadd43b8c0 SHA-1: 068753579291c4ba2b85638fd8e50f3a26b9cec3 SHA-256: 6b8cf19b076b58c6b431582472045452a44191ac74a211ae977271192b0be40d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample was identified as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. The PDF contains embedded URLs that likely serve as lures or redirects to malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attack pattern aimed at tricking users into visiting external resources, consistent with phishing or malware delivery. The presence of multiple embedded URLs points towards a campaign distributing malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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://feedproxy.google.com/~r/sq/ugae/~3/9xivtwLAy4k/square?utm_term=general+knowledge+questions+and+answers+in+kannada+pdf+download PDF link annotation
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e9363112fb7d0b27941896/1625896497323/tosururop.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ecfad4c2ef2d11c8d0d3b0/1626143444828/things_to_paint_on_windows.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f07b0c99acec0fa46903b7/1626372876950/pikuwavelajatanaloba.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f13ffe7c30ad68c63fd0dd/1626423294586/pibawuva.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec8800d0153e73bf8c5336/1626114048666/32506833885.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e8ef920a287971af97c8a8/1625878418685/be_the_rose_that_grew_from_concrete.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f05c61d8e413227d1f96bb/1626365025658/82926178430.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec95a07b14134336de35e9/1626117536939/60552415233.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e906ea566ded7d61abbec1/1625884394866/the_definition_of_complement.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ee7e878685745b7d18925e/1626242696063/how_to_reset_a_sentry_safe_code.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ba20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA20 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d237.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD237 11136 bytes
SHA-256: 0a389358e00282107f0adb3733dd360808bacdd4b4629c339928982595862167
font_02_sfnt_off0000ebe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBE4 16316 bytes
SHA-256: 863fb0f853e3098c0acd4e23b4803de470961b33e980683930c7702a824b77f1

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