Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd73093e066be2ce…

MALICIOUS

PDF

64.7 KB Created: 2022-06-05 06:38:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2022-07-15
MD5: d48dd9a495f824c1e7e6b036363452c0 SHA-1: ce80a6074fbb1fe9bc661a3a89e74e79a07a50d4 SHA-256: cd73093e066be2ceefe31d83fb0a3728a14b431cb7d42c56d8f446b59e5df932
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The file is identified as a malicious PDF by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious URL, likely intended to trick the user into downloading further malware or engaging in phishing. The PDF structure itself does not contain readable text, but the presence of the malicious URI and the detection signatures strongly indicate a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://sunuf.co.za/YmrXLWy8?keyword=sc%20dmv%20driving%20test%20manual%202019%20pdf%20download%20online
    • https://fokubazukif.weebly.com/uploads/1/3/2/6/132683137/395780.pdf
    • https://clinicamanila.com/ckfinder/userfiles/files/libuzidokemo.pdf
    • https://filojekejo.weebly.com/uploads/1/3/4/4/134446685/1006712.pdf
    • https://vixixufabajuwe.weebly.com/uploads/1/3/1/1/131163632/7a04dbb9.pdf
    • http://dietgame.net/admin/fckeditor/data/file/20220406114409.pdf
    • https://wronba.pl/uploads/wysiwyg/file/punup.pdf
    • https://gawugabel.weebly.com/uploads/1/3/4/3/134361726/jifit.pdf
    • https://fogowedosetoz.weebly.com/uploads/1/3/4/7/134703805/kegezezudagagiwid.pdf
    • http://savemaxint.com/files/file/50690573866.pdf
    • https://www.colours-of.com/wp-content/plugins/super-forms/uploads/php/files/u38oli5dk5adlodp840v9a4u49/mojix.pdf
    • http://orchid-daikanyama.com/userfiles/file/31107585425.pdf
    • http://idevoz.rs/files/zofagatawifixivekar.pdf
    • https://ludokizomajak.weebly.com/uploads/1/4/1/2/141280023/wejumaxa.pdf
    • https://xudowupibanes.weebly.com/uploads/1/4/1/3/141364717/10b4385.pdf
    • https://lirebuzufosol.weebly.com/uploads/1/3/1/4/131453665/cd64aaf3b32.pdf
    • http://onelove.cz/file/rumezapos.pdf
    • https://mawajajapok.weebly.com/uploads/1/3/4/3/134353668/xipawubipoze.pdf
    • http://demignyfasol.com/kcfinder/upload/files/fumetomimorawaluko.pdf
    • https://fomodaduvi.weebly.com/uploads/1/3/4/7/134700625/e05db0c.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_off00009ac0.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x9AC0 16792 bytes
font_01_sfnt_off0000b2d2.bin
244fb60da658ef2f7f397d45a0f123251ccb1f8adcf49b32c6e536e6f31b4927
pdf-font-stream PDF embedded font (sfnt) at offset 0xB2D2 15156 bytes
font_02_sfnt_off0000d9a4.bin
f0e63e429f85772d6e9b00a1168cfa290f00fd7425485d8267b5b7c183b5780c
pdf-font-stream PDF embedded font (sfnt) at offset 0xD9A4 11752 bytes