Malicious PDF — malware analysis report

Static analysis result for SHA-256 e89134613c87459a…

MALICIOUS

PDF

80.5 KB Created: 2021-07-13 19:33:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-20
MD5: b1ac86ee4c919ab0663fe5f29b4fa358 SHA-1: fdba8839ef693740363753ca9f7296fc7a60b4d5 SHA-256: e89134613c87459a37dc48bf92775a07da4f4be5798ef8269ac89bdef1ab6cee
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a 'Pdf.Phishing.Trojan' signature. It contains an embedded URL that, while currently flagged as benign, is a common tactic for phishing or directing users to malicious sites. The PDF structure and embedded content suggest an attempt to disguise malicious intent.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3811

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://feedproxy.google.com/~r/sq/ugae/~3/mHcMeCcfVl0/square?utm_term=cool+pictures+of+drift+from+fortnite PDF link annotation
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e77dbedd81b31ad7f4e5f2/1625783742424/59321328440.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec9421e0c99b3eb2d3e886/1626117153732/expensive_exotic_cats.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e8d820c158db2a32dafdd0/1625872417029/identify_zeros_of_a_function.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD5F 10748 bytes
SHA-256: a0374eb3e24690547f467b791e2a4dd03180e00c7fc2ed5bf6f911e407423473
font_01_sfnt_off0000e615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE615 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000fe22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE22 1728 bytes
SHA-256: 3e54697433f258519e59b5d4193970bd3702f67e639bb31f2dfcde737eb7fc9e
font_03_sfnt_off0001064b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1064B 17336 bytes
SHA-256: bf5fba300ae7c5d9b6e632fef91488de83f0f513c51990f6db8e6928a07b6626

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