Malicious PDF — malware analysis report

Static analysis result for SHA-256 309534d4edb6822a…

MALICIOUS

PDF

83.2 KB Created: 2021-07-15 14:09:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: d31a4cb711cb7fc07a733daf7520e6ea SHA-1: 0e7573342dc8ff95175c7a008b17c8649058c45d SHA-256: 309534d4edb6822a098708aa0b727777db33688d68fe0c420aa1be75fc775b50
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample was identified as a malicious PDF by ML classifiers and ClamAV, specifically as a phishing trojan. It contains embedded URLs that likely serve as lures or redirects to malicious content. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to trick the user into navigating to a compromised or malicious site, aligning with phishing tactics.

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/razvivatel/yapz/~3/iXsW93xxTQA/square?utm_term=faa+unmanned+aircraft+test PDF link annotation
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e7da4c51cb2a526cfc95f3/1625807436703/cbv_stands_for_in_polio.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60efccf8c00d13116b4235fc/1626328312387/wozuminesomokenovezur.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ed91a9c439f82871672498/1626182057152/zopunobiwoguna.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e768b1b96d4839c8008457/1625778353789/peduxibipawibis.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60edd98ca50f6e33a323a3c5/1626200460849/wait_and_see_the_salvation_of_the_lord.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec7e993f7a034ccb7a1bbc/1626111641285/37340423219.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60edf9fccc8e436e46684559/1626208764959/pokijaxixafenugonok.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e8f0b7b132fa362071063d/1625878711891/pain_in_calf_down_to_foot.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e7c50ea431ed42d2fad1da/1625801998650/7183899336.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ee6e4de7148d06bc73e376/1626238541622/40019848072.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60efe31f5d627c4551e12be2/1626333983409/i_will_check_out.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_off0000e330.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE330 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000fb42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB42 17364 bytes
SHA-256: 9c2cca44457cd0abe987cc8e5605514dd396928675de876a8e6cb79da4c91d2a
font_02_sfnt_off000128d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128D6 10548 bytes
SHA-256: d55667e2becd3e03c03cb68e4e2d6bc4c1e20771cb3d28ac2e49bed58bfd69e4

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