Malicious PDF — malware analysis report

Static analysis result for SHA-256 6019d0ca7add430a…

MALICIOUS

PDF

79.0 KB Created: 2021-07-16 07:06:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 8af5d3d4869296a9cd31006ab714dfe6 SHA-1: 0088b1930a15161333782a1cd575823286440007 SHA-256: 6019d0ca7add430aa3ea5a463511a13f5c4e948073c68cea0814216fe7d8f043
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The embedded URL points to a Squarespace domain, which is often used to host malicious documents. While no scripts were explicitly extracted, the PDF structure and the presence of embedded URLs suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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/~3/5JeRQhMeIYg/square?utm_term=san+francisco+police+misconduct
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60edce7aea8d40126a1a4300/1626197626474/getokajavasobejufutaxe.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e91fce5fa2eb14b90badff/1625890766412/dudozaromewipadek.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ecacc93631fd4ab81a334d/1626123465726/xusezu.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec9bef243eac6055d10e03/1626119151752/our_lady_of_prompt_succor.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f0649cbaa9e461674a8c8d/1626367133376/68025369685.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ee34d06d75c50a5d4334a7/1626223825055/papewakomiv.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e8eccd2a6f785f5831cab8/1625877710043/pusafukerapodul.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f0782491b8e868d289403e/1626372132650/sources_of_data_in_research.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60edf42ea4137771ba047756/1626207279094/live_in_water_animals_names.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e8ff01db8bb141bad81363/1625882369391/lafisojokima.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3b8.bin
430b9ee844e3f5b163fdd1588b8482d0bedb5d74911adae4e827249d00ead4c7
pdf-font-stream PDF embedded font (sfnt) at offset 0xD3B8 10956 bytes
font_01_sfnt_off0000ed1c.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0xED1C 16792 bytes
font_02_sfnt_off0001052e.bin
56fb7f770fde928fb50ce314e5e2b18e1fa33d0a60e4b3963cfaece5e0abeb57
pdf-font-stream PDF embedded font (sfnt) at offset 0x1052E 16360 bytes