Malicious PDF — malware analysis report

Static analysis result for SHA-256 867207cc0976eed7…

MALICIOUS

PDF

74.9 KB Created: 2021-07-13 06:12:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 83e5af8ad1ce6794c8b98cfed0947ee3 SHA-1: c3dccd1c505ce0007fcfce2dea8e77478a1dfca5 SHA-256: 867207cc0976eed7ebbe53945d19dbb12caf6cd62c6eade5c4c86c88d941cea1
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious. It contains embedded URLs that likely lead to phishing content. Although no scripts were explicitly extracted, the presence of embedded URLs and the ML classification suggest an attempt to trick the user into visiting a malicious site, aligning with phishing attack patterns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9163

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/~3/1LSSs5qy-i4/square?utm_term=minecraft+how+to+craft+glass
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec8890700aa07a78956a7b/1626114192609/king_edward_of_wessex.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e7c41795719b356d9190f0/1625801751795/how_many_16_oz_in_a_gallon.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e77f841f34c21d1885f3f6/1625784196291/wipadalimexonogopopanere.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ec92aeb3b63f0898f32cf3/1626116782435/jotiwovuk.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ecf330bc85f73bac219b99/1626141488260/9892660988.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e7d3568ad60325f0c5f932/1625805654966/critical_ops_unlimited_money.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e9483a320dbd0de28237bc/1625901114974/need_for_speed_rivals_ps4_2_player_split_screen.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_off0000c4e8.bin
d99669e67d5425eae1c52f7f4646c3c94349b879adaa4d67dd5a25c4327a83f3
pdf-font-stream PDF embedded font (sfnt) at offset 0xC4E8 16264 bytes
font_01_sfnt_off0000ef46.bin
5969ec2ab5411a3cddb71b90ee5510c11c4ac0a4e1eb035c777b9894cdd0632f
pdf-font-stream PDF embedded font (sfnt) at offset 0xEF46 10692 bytes
font_02_sfnt_off000107d6.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x107D6 16792 bytes