Malicious PDF — malware analysis report

Static analysis result for SHA-256 da0174fa886ad67b…

MALICIOUS

PDF

99.1 KB Created: 2021-07-13 17:35:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 2e269a57a0848403cc9c180348069de4 SHA-1: e862a245339c55344250e0652ab2ee7037c15866 SHA-256: da0174fa886ad67b7a3e722a9929047a19637fbcbc343ac48c49acf2f8e23a5b
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 further phishing stages. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit users through deceptive content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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/-MXWpcYQ7kA/square?utm_term=2nd+tallest+tower+in+the+world
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e922afb68d8f0f4bf851e8/1625891503491/sodabur.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ec8abeb6dedd3ae169918f/1626114751280/queen_bees_and_wannabes_free_download.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e81a8ced7e63043966df3f/1625823884910/i_will_sing_you_home.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60eda203f90efc25ed74c52d/1626186243779/31861075658.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e7e36ebab062161338c7d3/1625809774464/rebecca_brown_becoming_a_vessel_of_honor.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e8587548fc737004a5d47b/1625839733433/73601417765.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ecfb28b1b13d3c3c0c031e/1626143528504/15581683939.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e8eca766be7e490f0d2458/1625877671320/alcohols_are_isomeric_with.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e9161f3ba7d954d545c270/1625888287924/2206232977.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec904caf807f1e15265ddd/1626116172891/blood_type_punnett_square_practice_answers.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e900c6dc37083541b760da/1625882822587/overview_diagram_of_job_costing_system.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec8a8cfe047727940c62b6/1626114700334/how_to_change_app_install_location_on_windows_10.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ecfd3b66c2900cf55b8acd/1626144059835/convert_image_to_ascii_text.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec7dd5e64ce5371634428e/1626111445524/morusaxisalijepem.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_off00012245.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12245 16792 bytes
font_01_sfnt_off00013a57.bin
27fee9727f3157b3d8ba1d185b696ec105688067f2b4e944228f6084ab7d4903		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13A57 17428 bytes
font_02_sfnt_off000167df.bin
a3dd0c228f3e298805bf00692afd54f9dccb7c5543a2c41b20af958fe7d9b069		 pdf-font-stream PDF embedded font (sfnt) at offset 0x167DF 10452 bytes

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