Malicious PDF — malware analysis report

Static analysis result for SHA-256 a624f18017304812…

MALICIOUS

PDF

89.7 KB Created: 2021-07-13 00:20:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 7be534d0a1564e9c430cb5166502d580 SHA-1: bed9b274872252b0b91dc2c4eda1ff51f63bd8a9 SHA-256: a624f180173048123ac2d249e29a7681235dcfb9c9f4f542849ddf2145ddcba8
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The ClamAV heuristic identified this PDF as a phishing trojan. The presence of embedded URLs, despite some being marked as benign, suggests an attempt to redirect the user to malicious content. The PDF structure itself appears to be malformed, with duplicate object bodies, which is a common tactic in obfuscating malicious content within documents.

Machine Learning

  • Nyx PDF Classifier clean score 0.1718

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/NsX9ihectO0/square?utm_term=fly+by+night+live
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e94801c14ff043cd5e1157/1625901058003/13526558832.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e7a7ad4261ba79805e6376/1625794477835/77569002716.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ecaeaab06780101958dbb6/1626123946572/zekomapuzodupelifimotajum.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ecb0a62cc4417c39d39a01/1626124454381/old_school_lowriders_for_sale.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ced2.bin
4b36d33dd7ced23f331084d66de30f2cdb3de7354621df443c5b17091a8aefa3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCED2 16112 bytes
font_01_sfnt_off0000f8ba.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF8BA 16792 bytes
font_02_sfnt_off000110d1.bin
c8809d67a573ec023c27b5ffcac1f6e4d30ad78a298cd4ae4b45208de79d70ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x110D1 10132 bytes
font_03_sfnt_off0001274e.bin
f32045b761f27f0172cc1340bcc1a2c50961c3d7b099b829b6844be0f8a27f85		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1274E 7716 bytes
font_04_sfnt_off000141d7.bin
02561a08d40822c41e4f1630546b6cd589689eb1dc2617829bcdc567e4e96650		 pdf-font-stream PDF embedded font (sfnt) at offset 0x141D7 16568 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.