Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ae384cad9e04eba…

MALICIOUS

PDF

299.2 KB Created: 2022-05-26 17:03:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2022-07-15
MD5: 6a6ee717db76526dd648fd8c7ac572e0 SHA-1: 4ca8baf76ad79e5ecebafef0c3261de3b0942f85 SHA-256: 9ae384cad9e04ebad7a06dad8c86f2b534d7a0c23529e9726d80a965f4de4b1b
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious URL, which is a common tactic for phishing or distributing further malware. The document body is heavily obfuscated, preventing a clear understanding of its specific content, but the presence of the malicious URL and the ClamAV detection strongly suggest a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7849

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://norin.co.za/XSRYdR1H?utm_term=talks+on+truth+by+charles+fillmore+pdf+file+format+online
    • https://zexibimugurarem.weebly.com/uploads/1/3/5/4/135400238/rokaje.pdf
    • https://zaxezoxixuj.weebly.com/uploads/1/3/6/0/136097133/2828202.pdf
    • https://saxiwevirakete.weebly.com/uploads/1/3/4/7/134715854/7c0b33e8e0451e8.pdf
    • https://delitulasuv.weebly.com/uploads/1/3/0/7/130775658/mowevupuwo.pdf
    • https://am-system.eu/ckfinder/userfiles/files/15897683775.pdf
    • https://pepodefaposuv.weebly.com/uploads/1/3/5/9/135992330/da7c07032.pdf
    • https://lenelawa.weebly.com/uploads/1/4/1/5/141584508/gavojanesopupa_petanot_zaloridije_gakelixa.pdf
    • https://natyabio.com/uploadfiles/85935598911.pdf
    • https://liwevapazu.weebly.com/uploads/1/3/1/0/131071299/fimurizavizuvo-towisasateg.pdf
    • https://buvesedivuros.weebly.com/uploads/1/3/5/3/135398108/vinevore.pdf
    • https://fazizutedo.weebly.com/uploads/1/3/4/7/134768054/ca60f87.pdf
    • https://bepimenaxulax.weebly.com/uploads/1/4/1/6/141692043/1237417.pdf
    • https://vokinojen.weebly.com/uploads/1/3/4/8/134851280/gupized-zagebime-zujali.pdf
    • http://arsenev.verlauf-ekb.ru/admin/ckfinder/userfiles/files/36280007348.pdf
    • https://puwexisafiza.weebly.com/uploads/1/3/4/5/134586360/8231008b5.pdf
    • http://aburobocon2019.mnb.mn/uploads/files/pofekut.pdf
    • http://lavrstroy.ru/img/photo/files/20062988680.pdf
    • https://pikulevixabokof.weebly.com/uploads/1/3/1/6/131606248/84a3d21dcc.pdf
    • https://constructor.dilen.top/upload/files/90989359501.pdf
    • https://sinuvuliwazima.weebly.com/uploads/1/3/1/8/131871572/d264c96c.pdf
    • https://west-holding.com/userfiles/file/tesagu.pdf
    • https://judobujipukipaz.weebly.com/uploads/1/3/5/3/135300584/ea0094c2790d12.pdf
    • http://www.organizacaoatos.org/admin/ckeditor/kcfinder/upload/files/lesos.pdf
    • https://zoparidozuxeb.weebly.com/uploads/1/3/5/3/135390671/4160265.pdf
    • http://ban-dong-ban-mat.theonejsc.com/userfiles/file/88010938322.pdf
    • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1628532a2af446---85226247088.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_off00043d1f.bin
0aa49fb5d37e05bc465de9556ab7d04238776ca8801d6605e9f9ec3b1f8977ea
pdf-font-stream PDF embedded font (sfnt) at offset 0x43D1F 11296 bytes
font_01_sfnt_off00045751.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x45751 16792 bytes
font_02_sfnt_off00046f63.bin
9583986e87dd0e0cc7e423155c91a3b5361e2b448a4801817ecc16d5d8c0a362
pdf-font-stream PDF embedded font (sfnt) at offset 0x46F63 17144 bytes