Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d786c886af0bc3f…

MALICIOUS

PDF

77.7 KB Created: 2021-07-13 18:17:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: cdf5ef9503bdeec1e766970397f85ba3 SHA-1: 68bc1aaf58f8a43ef8bb5d5963d7d8a1f06d750f SHA-256: 0d786c886af0bc3f471f56a3b38b3848734aeda87bb5b0b40025c14cab1a71e5
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as a malicious PDF by ML classifiers and ClamAV. It contains embedded URLs that likely serve as lures or redirect to malicious content. Although no scripts were explicitly extracted, the presence of embedded URLs and the PDF structure suggest an attempt to trick the user into navigating to potentially harmful external resources, aligning with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9204

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/hIkXU_AiHkM/square?utm_term=give+me+two+random+words
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e9474edc37083541b9f419/1625900878216/19462010425.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ec7a5f700aa07a7893df56/1626110559364/the_hobbit_2_full_movie_download.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec77dbde8c3264fe5dabfc/1626109915880/meaning_of_at_his_wits_end.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e76f089561735a16c487f1/1625779976534/national_lampoons_vacation_on_tv.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ed3a9002ab3a569c41e2b8/1626159760661/ropidomevobim.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e8fc6adb8bb141bad7ee21/1625881706443/fire_gutted_meaning.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_off0000d04d.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD04D 16792 bytes
font_01_sfnt_off0000e85f.bin
f201f29a4d6a0f888d7062d123ac2a229dc8e181d112b3e1adb52a973ddc2576		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE85F 16436 bytes
font_02_sfnt_off000112e1.bin
7e06b5c78a4eb1c51c732d2877fa3a035c5f79b24a8314ab201b437ce596ef7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x112E1 10552 bytes

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