Malicious PDF — malware analysis report

Static analysis result for SHA-256 de7e029295a1aefb…

MALICIOUS

PDF

84.6 KB Created: 2021-06-29 07:25:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: cee9d3ecc47c12a4cc382598f5a1fbf9 SHA-1: 2d31b9b7c8597fa3c0b5f0355a7fcdbe0e406d4b SHA-256: de7e029295a1aefbde0871a000ee3f7825a78fad8685e50e66af98300b4a3d55
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains embedded URLs that likely serve as lures or download locations for secondary payloads. The PDF structure and embedded content suggest an attempt to exploit vulnerabilities or trick the user into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/8668d008d1defae58a26910f5cbe385d/24224161152.pdf
    • http://aggengr.com/uploads/CMS/file/terajado.pdf
    • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160ace531a7367---88604623460.pdf
    • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/95d92d8e37573e3704036e32cef2f04f/52357323039.pdf
    • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160800ec54b958---regutejosawokamekor.pdf
    • http://ctmmaximoravenna.com/ckfinder/userfiles/files/waterirut.pdf
    • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160abcf6a189c8---moluxana.pdf
    • https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/o5l5hdf9557o0stc71n5gbt0t2/44503294474.pdf
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/99e538d2d90868e27f9d5a81b0943c7f/75717324082.pdf
    • http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609908a3f3268---geziminivebej.pdf
    • http://aaaexpressac.com/userfiles/file/tupiparuwo.pdf
    • http://lg-palette.com/upload/files/29326638385.pdf
    • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/71078f6971eb6e9ad6c6741877966e97/sogidinosin.pdf
    • http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/c137dc443fa2aee2f61cbf2010da4be9/87188632741.pdf
    • https://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/vl06fotu2g2s465c7rethlju74/27790130188.pdf
    • https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/a40e188b87a9b16f0afaa063f20be15d/34268258616.pdf
    • https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1609257836e18a---zisejudovigixulaju.pdf
    • https://tenfci.org/userfiles/file/80522798153.pdf
    • http://aliotoconsulting.com/clients/862286/File/23555953950.pdf
    • http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608307a60cab4---21221317125.pdf
    • https://kristinanamaste.eu/files/jilewezesiwajowasonax.pdf
    • http://zatacorp.com/upload/files/sujidolapa.pdf
    • https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607899f7d6c20---44891868070.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=export+indesign+with+bleed
    • 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_off0000e7e3.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE7E3 16792 bytes
font_01_sfnt_off0000fff5.bin
b3d5a266fef05230fae6ad59413f120d4cda93fad626b9e70d27a76efcd90040		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFFF5 17156 bytes
font_02_sfnt_off00012d19.bin
1fb9f47aa0f044a82d0d02ad01d7ea5909f73aa9686e7586c5f7c452f710f7c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12D19 10820 bytes

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