Malicious PDF — malware analysis report

Static analysis result for SHA-256 dea22b3d85e51b8b…

MALICIOUS

PDF

73.9 KB Created: 2021-05-21 22:23:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 387b39fb32c74a2343240dbb22628799 SHA-1: 3ff2b9a0793fc489eb438dd1573b4e3b07a53252 SHA-256: dea22b3d85e51b8b6aee2f74e98111645fc4dd1f10c8c9e340aa4761cb39ee95
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The ML classifier and ClamAV detection strongly indicate maliciousness. The PDF contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware download site. The document body, though heavily obfuscated, appears to reference a book title, suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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://philabc.ru/uplcv?utm_term=seven+spiritual+laws+of+success+barnes+and+noble
    • https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/5ba05rp07iuvds2fi89i1eidel/banesub.pdf
    • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/70440a68493eadca8d415e25ceca818c/japaripoduzuduxamurox.pdf
    • http://allseasonsart.com/uploads/fck_uploads/file/18844451033.pdf
    • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/160875e5213c6d---zupolodod.pdf
    • http://www.bufolari.com/public/immagini/file/gijimajoparumabaxonitumon.pdf
    • https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/ffeb4c099942b6cdab8692e050acc490/81154851377.pdf
    • http://ottotech.center/userfiles/file/nefapimukarip.pdf
    • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f522a33040---nuxos.pdf
    • https://www.cpro.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607b37c8ac7e6---80411182760.pdf
    • https://tenfci.org/userfiles/file/69679330677.pdf
    • https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/3ba1aa7294cefee2a927ade402dcdaf2/jimixisurudotupej.pdf
    • https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/4icflmm2mn6e6mtp83elill2b6/30804237236.pdf
    • https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160868d7e06b82---90430984507.pdf
    • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606c95d77aa68---87295565757.pdf
    • http://teplospectr.ru/images/files/57690564344.pdf
    • http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/16073eda6c117b---23665630849.pdf
    • https://sp-pir.ru/wp-content/plugins/super-forms/uploads/php/files/7fd03d2e8bf24fb48270b30ba8f89c66/3214320519.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e001.bin
935d2758a8c7381913fa9c6589a27f853901a59a550d6b486e3827c07169ccc2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE001 5428 bytes
font_01_sfnt_off0000f285.bin
afe83cb5bf65264761e2137e354724b821d470992b66fb704b78ee223b727c71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF285 9968 bytes
font_02_sfnt_off000114a3.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x114A3 4324 bytes

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