Malicious PDF — malware analysis report

Static analysis result for SHA-256 5427c71db10926c8…

MALICIOUS

PDF

81.9 KB Created: 2021-07-15 19:52:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 09299ad2608dee61d866306ced00fee1 SHA-1: 5b904a32ca2c4203e4c3e30991ef9c2edda5c05a SHA-256: 5427c71db10926c876d6ab667a7c15f614049c5107c7b6f2854dc09fb63c6f07
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a phishing attempt. The PDF contains embedded URLs that likely lead to malicious content or phishing sites. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the detection suggest an attempt to redirect the user to a harmful destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9031

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/gOBB6uaVNRA/square?utm_term=how+many+letters+in+the+hawaiian+language
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ede636cb43530604a8e709/1626203702890/temusukujolisojaberedikog.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60edbedb930ff80baa08b396/1626193628005/dudomujolobimate.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec93600f7d8d50062d0ed3/1626116960182/41376934097.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ee627027fa864c7d140408/1626235504960/ptsd_and_sexless_marriage.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60eca4f858d864752e04406a/1626121464242/most_embarrassing_moment_interview_question_answer.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f04d11166c7e6eb053eb73/1626361105464/fusevapefifedutakulumul.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60edd47bb0089c62dc3d20a3/1626199163340/what_is_airdrop_on_iphone.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_off0000df34.bin
c8d7419f183d1ca0cf0b745914af6edf14a2a19d25be38df0c98f90572967c8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDF34 10848 bytes
font_01_sfnt_off0000f810.bin
95b3f3f30b0f10e7c4791416a02fbbff676e2a80fb0e1f0c0d6a53aee2f92eff		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF810 17028 bytes
font_02_sfnt_off0001238b.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1238B 16792 bytes

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