Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb348e302f9d53cf…

MALICIOUS

PDF

78.4 KB Created: 2021-05-15 21:35:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e8010c2a8927193f131dfe268b64dea4 SHA-1: 7ac04f3d60ac4d5c0758eb94c9a36f9fa9b6bd50 SHA-256: eb348e302f9d53cfd975b9b7cced2d37573169eebedb16b29a4ec714db6a4f85
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of external links and the overall detection profile strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://cructi.ru/uplcv?utm_term=metronome+beats++pc
    • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/16073ba6a95cb5---rolozafinipuwav.pdf
    • https://myveolife.com/wp-content/plugins/super-forms/uploads/php/files/35e28b334184aff2f3decf9689c23543/10062854689.pdf
    • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609d5ba34e5cd---83329617313.pdf
    • http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083cd57937a9---29837782304.pdf
    • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607181dd299aa---xelaragituwelubi.pdf
    • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/578031a507f997546542f1d5ecf7534c/77318766060.pdf
    • http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160849771e2068---11666513941.pdf
    • https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce83b56a6b---xigejesuwa.pdf
    • https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/78dcfaf5626f74aa513850078b2c48c0/91296791971.pdf
    • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/4e7e44146d5fff80d23d9c96e195d4b0/24851193431.pdf
    • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098da312a4f8---lepazuneba.pdf
    • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/1606eee10c1110---48380247090.pdf
    • http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607d523f808b9---bavusug.pdf
    • https://tonwen.org/userfiles/file/17422561744.pdf
    • https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/75a318ce5ce0de7ac13696d7cda19c39/35362798978.pdf
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160922575d586e---64266398603.pdf
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085d7400c9ad---55661991491.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.opentle.org
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://scripts.sil.org/OFL
    • http://www.gnu.org/licenses/gpl.html

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea6c.bin
b342e2016899ceed5cd2803b7b3f97c37536cc66739855a55886f713a313abbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA6C 5192 bytes
font_01_sfnt_off0000fbf5.bin
131a4805b5fbfdc9dd649613e58a8d4d671fd9ada56e94fb0053d66320e02390		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFBF5 6264 bytes
font_02_sfnt_off00010c4a.bin
daba805e8503c18d23eb846cdc296fc7c6e3cae46d9d4d912c2f898741648f93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C4A 10596 bytes

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